aggregate demand for electricity in south africa an analysis using the bounds testing approach to cointegration abstract electricity demand in south africa has grown at a very rapid rate over the past decade as part of reform initiatives to enhance long term sustainability of the country s electricity industry south africa s authorities have in recent years sought to develop an electricity pricing framework that is cost reflective and forms the cornerstone of demand management schemes meant to foster changes in consumption behaviour and enhance efficiency in resource use the effects of any pricing policy on aggregate electricity consumption will depend on a useful understanding of the factors that influence electricity demand and the magnitude to which electricity demand responds to changes in such factors in this context this paper applies the bounds testing approach to cointegration within an autoregressive distributed lag framework to examine the aggregate demand for electricity in south africa during the period 1960 2007 the results indicate that in the long run income is the main determinant of electricity demand with electricity prices having an insignificant effect on aggregate electricity demand future pricing policies will need to ensure that electricity prices are cost reflective and enhance efficiency of electricity supply and use

oil price volatility and stock price fluctuations in an emerging market evidence from south korea abstract how important are oil price fluctuations and oil price volatility on equity market performance what are the policy implications if volatility turns out to be significant we assess this issue in an economics finance nexus for korea using a vec model including interest rates economic activity real stock returns real oil prices and oil price volatility our main aim is to capture the effects of crude oil prices on the korean economy thoroughly covering the period of the asian financial crisis of 1997 which heavily affected the country and the oil price hikes in the early 1990s after the gulf war south korea was the country most hit by the financial crisis together with indonesia and thailand results indicate the dominance of oil price volatility on real stock returns and emphasize how this has increased over time oil price volatility can have profound effect on the time horizon of investment and firms need adjust their risk management procedures accordingly this increase in dependency has been found in other net oil importing emerging equity markets we test the relationship between oil price movements and economic activity by using modern time series techniques in a cointegrating framework we expand the standard error correction model by examining the dynamics of out of sample causality through the generalized variance decomposition and impulse response function techniques the evidence from persistence profiles also gives important guidelines based on how fast the entire system adjusts back to equilibrium in addition we find the cointegrating relationship to be stable and find that the linear error correction model to be more favorable than an asymmetric 2 period markov switching model

the influence of seasonal adjustment on the canadian consumption function 1947 1991 cointegration tests typically rely on seasonally adjusted data cointegration tests are applied in this paper to seasonally unadjusted data the main objective of the paper is to test the permanent income hypothesis using canadian data the authors find that the unit root at the zero frequency found in seasonally adjusted data is also present in seasonally unadjusted data however there is considerable evidence for the presence of seasonal unit roots although there is support for the permanent income hypothesis for seasonally adjusted data the same hypothesis is rejected for seasonally unadjusted data

modeling household behavior in developing countries discussion a large and growing body of literature has examined how agricultural households cope with risk much of the work has focused on which types of households are better able to smooth consumption testing whether households with more resources and greater access to income smoothing institutions such as credit markets or well functioning labor markets exhibit greater consumption smoothing however income shocks may have different effects upon different individuals within households and differences in individual ability to smooth income or consumption may have welfare consequences which go beyond foregone income the development of collective household models challenges the assumption that individuals within households maximize a single utility function the assumption of income pooling has also been rejected in a growing body of empirical research on intrahousehold resource allocation however research on risk pooling within households and differences in individual abilities to smooth consumption is relatively new selected papers are discussed

modelling long run comovements in equity markets a flexible approach abstract international equity markets linkages are characterized by nonlinear dependence and asymmetries we investigate shifts in long run comovements in stock markets by means of an interrupted markov switching cointegration specification this flexible approach allow us to study to what extent documented changes in global integration are permanent or whether market linkages are subject to changes using an illustrative sample from 1980 to 2012 for usa uk and hong kong stock price indices we find evidence of interrupted cointegration across these markets between may 1997 and april 2002 which is consistent with the decoupling of stock prices from fundamentals during the dot com bubble

comovements in national stock market returns evidence of predictability but not cointegration abstract this paper is a response to the literature that tests for cointegration between national stock market indices it argues that apparent findings of cointegration in other studies may often be due to the use of asymptotic rather than small sample critical values in fact economic theory suggests that cointegration is unlikely to be observed in efficient markets however this paper finds evidence for the predictability of relative returns and the existence of a winner loser effect across 16 national equity markets a conclusion is that national stock market indices include a common world component and two country specific components one permanent and one transitory

stock price co movement and the foundations of pairs trading we study the theoretical implications of cointegrated stock prices on the profitability of pairs trading strategies if stock returns are fairly weakly correlated across time cointegration implies very high sharpe ratios to the extent that the theoretical sharpe ratios are too large our results suggest that either i cointegration does not exist pairwise among stocks and pairs trading profits are a result of a weaker or less stable dependency structure among stock pairs or ii the serial correlation in stock returns stretches over considerably longer horizons than is usually assumed empirically there is little evidence of cointegration favoring the first explanation

long run relationship between output capital labour and productivity in emerging market economies long run relationship between the variables involved in the production function is an issue that is important particularly in developing countries as the neoclassical production function is best suited for developed countries and its applicability to developing countries is questionable in various ways this motivates us to do this based on time series analysis taking indian textile industry as an example which is currently at its crucial stage as a critical industry in an emerging economy with the phasing out of multi fibre arrangement in 2005 this study documents existence of cointegration between capital and output negative impact of employment shocks on output changes substitutability between changes in capital and labour negative effect of shocks to changes in capital stock on productivity and negative effect of employment shocks on future productivity these results are in line with the general perceptions about this industry and with the standard neoclassical propositions as explained in t

the causality relationship between energy consumption and gdp in g 11 countries revisited abstract this paper explores whether energy conservation policies can be implemented in countries with the same level of development that is is restraining energy consumption without compromising economic growth feasible in all industrialized countries a new granger non causality testing procedure developed by toda and yamamoto 1995 journal of econometrics 66 225 250 is applied to re investigate the relationship if any between energy consumption and income in 11 major industrialized countries the results clearly do not support the view that energy consumption and income are neutral with respect to each other except in the case of the united kingdom germany and sweden where a neutral relationship is found bi directional causality in the united states and uni directional running from energy consumption to gdp in canada belgium the netherlands and switzerland are found this indicates that energy conservation may hinder economic growth in the latter five countries further the causality relationship appears to be uni directional but reversed for france italy and japan which implies that in these three countries energy conservation may be viable without being detrimental to economic growth

seasonality and habit persistence in a life cycle model of consumption summary the allocation of non durable consumers expenditure over the four quarters of the year reflects choices made by consumers implying a utility function exhibiting seasonality incorporating such a function the life cycle model fails to explain fully the observed dynamics in uk seasonally unadjusted data seasonal habit persistence effects are introduced and found to be significant although this generalized model stands up well to testing in a univariate context it fails to exclude a predictive role for lagged income changes seasonality is inherent in many economic time series but it is rarely considered to be an issue of interest in econometric model building rather than explicitly investigating the economics underlying seasonal variation modellers typically try to remove its effects either by using seasonally adjusted data or by including seasonal intercept dummies in their equations the former practice is criticized by wallis 1974 who shows that it may distort the relationship between variab le the latter assumes that the function simply shifts up or down with the season however except for degrees of freedom considerations there seems to be no a priori reason why the same parameters or functional form should apply at different times of the year indeed gersovitz and mackinnon 1978 argue that realistic utility cost or production functions result in models in which seasonal influences cannot be separated out in a simple fashion in the present study seasonality is treated as one of the features to be explained within the economic model thus in the particular application to non durable consumers expenditure it is argued that the allocation of expenditure over the year reflects seasonal tastes and hence seasonality in the underlying utility function the implications of this are explicitly investigated the framework for our analysis is the influential paper by hall 1978 who derives a randomwalk model for real non durable consumers expenditure when rational expectations are combined with a life cycle theory of consumption hall does not investigate seasonality at all and employs seasonally adjusted values in his empirical analysis although subsequent us authors have examined many aspects of this theory the type of data used has rarely been

defining geographic coal markets using price data and shipments data abstract given the importance of coal in world energy supply an analysis of the relevant geographic market is essential for consumers producers as well as for competition policy the purpose of this paper is to define the relevant economic market for steam and coking coal and to test the hypothesis of single world markets for these coal products methodologically the paper relies on two different tests for defining markets using both shipments data and price data the results from both methods point in the same direction in the case of coking coal the results indicate that the market is essentially global in scope and also that the market has become more integrated over time the results for steam coal show that the market is more regional in scope and there exist no clear tendencies of increased integration over time one policy implication of the finding that the steam coal market is more regional in scope and thus that the market boundary is smaller than if the market would have been international is that a merger and acquisition in this market likely would have been of a more concern for antitrust authorities than the same activity on the coking coal market

exchange rate bubbles fundamental value estimation and rational expectations test abstract we propose a model of periodically collapsing bubbles which extends the van norden 1996 model and nests it by considering a non linear specification for the bubble size in the survival regime and the endogenous determination of the level of the fundamental value of the stochastic process they allow us to test for rationality in the formation of expectations and remove the arbitrariness of exogenously setting the level of the fundamental value this general model is applied to the exchange rate of the brazilian real to the us dollar from march 1999 to february 2011 the futures market exchange rate is used as a proxy of its expected future value and three different structural models are considered for the determination of the fundamental value the first two imply that the exchange rate satisfies either purchasing power parity ppp or a modified version of it the third structural model is a version of the monetary model of exchange rate determination fitted to the period under consideration we obtain the maximum likelihood estimate of the parameters of the models explore the properties of the errors test its restricted versions and compare the three specifications for the fundamental we find that the models we propose fit well the data and are useful in the heuristic interpretation of the exchange rate movements of the period finally we select the structural models that display the best performance according to several criteria

dynamic steam coal market integration evidence from rolling cointegration analysis abstract the aim of the paper is twofold first to assess the dynamics of the integration process of the international steam coal prices and second to investigate the changes in the roles of particular coal prices in this market in the light of changes in the structure of supply and demand the analysis is based on steam coal prices set by the largest world exporters and importers on both the atlantic and the pacific markets we use weekly data spanning from october 5 2001 to march 28 2014 the aim is achieved in two stages during the first one we use the rolling trace test to identify the integration of the steam coal market and during the second one we apply the rolling weak exogeneity test to determine the roles of the participants of the international steam coal market namely price setters and price takers our main findings can be summarized in two observations firstly the main world steam coal prices are integrated and during the period when freight costs are higher the coal market integration is weaker and when the costs are lower the integration is stronger secondly the role of particular coal prices is not stable in time generally price setters appear in the market which covers greater shares in the physical coal trade although indonesia and russia have a great share in the global export their prices remain price takers during the whole period as a consequence although russia remains the largest coal exporter of the steam coal to the european market it cannot dictate its prices in this market

international stock market efficiency a non bayesian time varying model approach this article develops a non bayesian methodology to analyse the time varying structure of international linkages and market efficiency in g7 countries we consider a non bayesian time varying vector autoregressive tv var model and apply it to estimate the joint degree of market efficiency in the sense of fama 1970 1991 our empirical results provide a new perspective that the international linkages and market efficiency change over time and that their behaviours correspond well to historical events of the international financial system

further tests on the forward exchange rate unbiasedness hypothesis in this paper we reexamine the evidence on the forward rate unbiasedness hypothesis for the main currencies vis a vis the u s dollar exchange rate using the phillips and hansen 1990 estimation and inference procedure

common stochastic trends in international stock markets abstract this paper presents evidence concerning the number of common stochastic trends in the equity markets of the u s japan england germany and canada monthly and quarterly data from january 1974 through august 1990 on morgan stanley s capital international indices are used to compute johansen 1990 tests for common trends the results indicate the presence of a single common trend driving these countries stock markets estimates of the factor loadings suggest that this trend is most important in the japanese market and least important in the canadian market to interpret this evidence the paper demonstrates that under weak conditions the unit root and cointegration structure of stock prices should mirror the unit root and cointegration structure of their dividend payments the paper tests this prediction by constructing national dividend series from capital international s dividend yield data as well as by using gnp data as with stock prices the evidence points to a single common trend although the stochastic properties and relative importance of this trend differs somewhat from the trend in stock prices

equity market integration versus segmentation in three dominant markets of the southern african customs union cointegration and causality tests empirical tests of theories of financial market integration and segmentation have predominantly focused on developed oecd countries and the emerging markets of asia pacific this study uses a unique panel of equity market indices from the principal southern african customs union sacu markets it tests the hypothesis of market integration using a cointegration approach markets that are found to be integrated are then tested for evidence of granger causality through an error correction mechanism results obtained using var modelling techniques are compared to those using an ardl model while results lend support to existing trade macroeconomic and developmental linkages and effects between and within the countries there is some evidence for the presence of a regional factor common to african emerging markets that explains causality from namibia to south africa the results support the view that institution building has progressed which is considered to be a valuable contribution to growth promotion po

persistent trade effects of large exchange rate shocks this paper presents a theoretical basis for the argument that large exchange rate shocks such as the 1980s dollar cycle may have persistent effects on trade flows and the equilibrium exchange rate itself we begin with a partial equilibrium model in which large exchange rate fluctuations lead to entry or exit decisions that are not reversed when the currency returns to its previous level then we develop a simple model of the feedback from hysteresis in trade to the exchange rate itself here we see that a large capital inflow which leads to an initial appreciation can result in a persistent reduction in the exchange rate consistent with trade balance

price interrelationships in the vegetable and tropical oils market the relationship between vegetable and tropical oils prices is investigated utilizing a vector autoregressive approach despite the apparent similarities between these oil prices in terms of their general pattern of movement over time the relationships were not found to be strong enough to label them as cointegrated series further analysis indicates that substitution relationships appear to drive price movements in the short run while market based structural factors for each of the oils are important elements in the price formation process in the long run

a time series test of innovation driven endogenous growth this article finds evidence that ideas and innovation are a key force explaining postwar growth in the u s economy utilizing data on patents issued since 1851 i construct a measure of the growth rate of knowledge capital stock estimates human capital estimates and real gross domestic product per worker growth rates are combined with the knowledge growth series to construct a time series test of endogenous innovation growth models the results support the endogenous innovation approach but suggest that the accumulation of the per worker capital stock and changes in average human capital per worker are at least as important jel 030 c32

firm outsourcing decisions evidence from u s foreign trade zones deborah l swenson this article examines the operations of firms located in u s foreign trade subzones to study the responsiveness of outsourcing to international cost changes i find that firms reduce their reliance on foreign inputs when dollar depreciation increases the relative price of imported inputs the effect is pervasive across industries and is economically significant in addition firms that rely more heavily on imported intermediate inputs reduce their overall shipments when dollar depreciation elevates their imported input costs however the magnitude of the shipments effect is economically small suggesting that firms respond to exchange rate movements by adjusting their operations on other dimensions jel f23 f1 i introduction during the nafta debates u s industry argued that it would be placed at a competitive disadvantage if it failed to gain access to mexican parts that benefited from tariff reductions in the absence of such benefits it was argued that u s firms might even move their production off shore at the same time u s trade unions expressed great concern that jobs and high levels of economic activity would be lost if nafta caused a rise in the outsourcing of intermediate inputs although these countervailing concerns have attracted much attention very little is known about the responsiveness of firm outsourcing to relative price changes or about its secondary effects on firm shipments since outsourcing decisions are made at the firm level and appropriate data is rarely available to researchers this article seeks to address this void by analyzing a data set that provides information on these purchasing and shipment decisions recent aggregate evidence indicates that firms are purchasing an increasing portion of their intermediate inputs from their foreign affiliates or from unrelated parties located abroad 1 it is argued that advances in transportation and communications have facilitated the trend toward the dispersion of production activities while the aggregate trends are striking little research has focused on individual firm decisions one exception is brainard and riker s 1997 examination of multinational firms employment choices as they respond to international wage changes brainard and riker conclude that the degree of firm substitution among a firm s numerous foreign affiliates is much higher than that between parent firms and their foreign affiliates which is relatively small this labor market evidence suggests that foreign affiliate labor is not easily substituted for home labor and that the two may even be complements 2 in contrast a higher degree of substitutability is implied by work including feenstra a nd hanson 1996 and irwin 1996 for the united states or campa and goldberg 1997 for the united states united kingdom japan and canada which documents that the usage of imported intermediate inputs has increased in almost all cases since the 1970s 3 this article studies the issue of input sourcing flexibility and its consequences by examining individual firm decisions the analysis is based on the activities of a set of firms located in u s foreign trade subzones i focus on this subset of firms since the u s foreign trade subzones program provides a unique opportunity to examine firm level decisions regarding inputs and shipments the reporting requirements of the foreign trade zones program enable us to view aspects of firm sourcing decisions that are usually unobservable i use two estimation methods to measure the general substitutability of inputs and outsourcing flexibility first i develop a constant elasticity of substitution ces model of input demand i then use nonlinear least squares techniques to estimate the underlying demand parameters implied by the structural equations i then perform a tobit analysis of firm sourcing decisions the benefit of the second form of analysis is that it allows me to study additional determinants of outsourcing and it does not require strong assumptions about the functional form of the production function

motivations to remit evidence from botswana in this article a theory of motivations to send remittances is described and tested with data from botswana altruism is one of the motivations tested and found to be an insufficient explanation for remittances among migrants in botswana a refinement of the model stipulates a modified altruism or enlightened self interest in this model the relationship between the migrant and family is tempered by an implicit understanding of mutual benefit the household strategy may be to encourage some members to migrate as a means of spreading risk and sharing gains the household strategy is similar to an insurance policy where migration is to places where market potential is high the risks incurred might be high the example is given of migration during a drought in botswana migrant remittances were greater in households with more cattle or households with more to lose drought alone was not statistically related to remittances increases in remittances were related to increased levels of education it is suggested that repayment was the motive for parents investment in migrants education migrants gains are identified as the potential for an inheritance the security of channeling investments through a trusted family member and security in having a home to return to it is pointed out that the altruism and family remittances from urban migration were strategies that bridged the simple dynamic of either urban development or rural development impacting on family welfare it is suggested that household models of economy adopt some measure to express the relationship of household wealth to remittances from urban migrants

long run relationships between international stock prices further evidence from fractional cointegration tests the recent empirical literature supports the view that most of the international stock prices are not pairwise cointegrated however by using fractional cointegration techniques this paper shows that france germany hong kong and japan stock prices indices are pairwise fractionally cointegrated with us stock prices equilibrium errors are mean reverting with half life lying between 2 and 12 days it is worthwhile noting that emerging markets like brazil and argentina are not pairwise cointegrated with the us stock market these new results have important implications for asset pricing and international portfolio strategy

long memory and persistence in aggregate output abstract we examine persistence in u s aggregate output by estimating fractionally integrated arima models these models provide better low frequency approximations to the wold representation than previous stochastic specifications and earlier results on the importance of a permanent component emerge as special cases we find evidence of long memory which induces persistence though this long memory need not be associated with a unit root our point estimates indicate that macroeconomic shocks while persistent are distinctly less persistent than many earlier studies suggest however confidence intervals associated with the long run response are quite wide

economic determinants of comovement across international stock markets the example of taiwan and its key trading partners this study uses the multinomial logit model in which comovements are categorized into three outcomes namely i negative comovements ii positive comovements and iii no comovements with the purpose of the empirical analysis being to investigate the economic determinants that affect the comovement relationships in the stock markets for taiwan and four major trading partners mainland china united states japan and hong kong using daily data covering the period from 1994 to 2004 the period under study is further divided into three sub periods i e the period before the asian financial crisis that during the asian financial crisis and that after the asian financial crisis in order to determine whether the factors influencing the comovements in the stock market returns of taiwan and its trading partners actually change over time in addition this study differs from earlier studies that only emphasized the analysis of statistical significance in that it attaches importanace to analysing both the s

transitory and permanent disturbances and the current account an empirical analysis in the intertemporal framework the intertemporal models of current account determination demonstrate that in the analysis of the current account balance of a country it is important to distinguish between transitory and permanent disturbances in income and relative prices this paper attempts to decompose the observed data on income and real exchange rate into transitory and permanent components and then uses the decomposed series to test the empirical validity of the predictions of the intertemporal models evidence from the united states and japan provide very limited support for the intertemporal models in terms of the effects of transitory and permanent changes in income on current account balance for both us and japan the study finds that permanent changes in real exchange rate have significant effects on the current account balance statistical tests find no evidence of hysteresis in the trading relations of the two countries

cointegration market integration and market efficiency abstract this paper uses a standard dynamic general equilibrium asset pricing model to study the relationship among the concepts of efficient markets integrated markets and cointegrated prices within this setting we show that these concepts are independent of one another and any zero one two or three of these characteristics can emerge in equilibrium depending upon taste endowment and technology parameters in particular the results of tests of cointegration among asset prices have no implications about market efficiency or market integration without additional restrictions on the economy or economies

global value chains a survey of drivers and measures global value chains gvcs emerged as the paradigm for the international organisation of production for most goods and services production is nowadays vertically fragmented across different countries and this reality gave rise to a significant new strand of research in in ternational trade this article starts by discussing the major driving forces of gvcs in recent decades next it surveys the main measures of gvcs accounting for their different scopes and required datasets the artic le highlights the timing of the contributions to the literature signalling their sequential nature and the trend towards more accurate and data demanding indicators

income smoothing and consumption smoothing one way that risk averse households protect consumption levels is to borrow and use insurance mechanisms another way common in low income economies is to diversify economic activities and make conservative production and employment choices households thus tend toward limiting exposure only to shocks that can be handled with available credit and insurance typically both types of mechanisms are studied independently but much more can be learned by studying them together first we obtain a more complete picture of risks costs and insurance possibilities second it opens the way to considering biases in standard tests of credit and insurance

endogenous structural breaks public investment in agriculture and agricultural land productivity in taiwan using time series data for taiwan s agricultural sector and with the government s public investment in the agricultural sector serving as a proxy variable for nonfarm current inputs aside from the original labour and capital input variables usually taken into consideration this article examines the relationship between public investment in agriculture public investment land and agricultural land productivity output land in taiwan our main findings are as follows first the cointegration test reveals that public investment in agriculture and the productivity of agricultural land exhibit a significant positive relationship in the long run where the elasticity of land productivity in relation to public investment in agriculture is 0 55 second when controlling for endogenous structural breaks the long run equilibrium relationship for the productivity of the agricultural land model is still supported third the results of the weak exogeneity test indicate that a causal relationship exists in the lo

hyteresis in import prices the beachhead effect this paper shows that temporary real exchange rate fluctuations can have persistent hysteretic effects on trade specifically when market entry costs are sunk sufficiently large exchange rate shocks alter domestic market structure and thereby induce hysteresis this simple result has strong implications for exchange rate theory t rade policy and estimation of trade equations empirical evidence su ggests that the recent dollar overvaluation induced hysteresis in u s import prices namely the aggregate pass through equation of exchange rates to import prices shifted in the 1980s the shift s nature and timing is broadly consistent with the hysteresis hypothesis copyright 1988 by american economic association

nonlinearity and structural breaks in irish ppp relationships an application of random field regression using nominal and real exchange rates for ireland relative to germany and the uk from 1975 to 2003 this article explores likely sources of nonlinearity in purchasing power parity ppp relationships and difficulties in employing an i 1 i 0 econometric framework tests for fractionalintegration and nonlinearity including random field regression based procedures are applied results reveal shortcomings in the standard cointegration and smooth transition autoregression approaches to modelling and point to multiple structural changes models such a model for the case of ireland and germany suggests that ppp holds not only in the long run but also in the medium to short term

the big problem of forecasting small change the united states mint recently reviewed approaches to forecasting the demand for new coin this paper reports on methods used to determine fundamental attributes of the data and uses these to help better determine appropriate model specification in order to better plan coin production in particular the debate regarding trend versus difference stationarity in macroeconomic trending data is considered the interest in the present paper is limited to applying a well known unit root test procedure to an untested macrodata set changes in us coin demand to see whether the test is useful in guiding the specification to improved forecast performance it is found that the forecast results are somewhat sensitive to the way in which the data are seasonally adjusted and lessons learned from this case study indicate that unit root tests are useful in guiding model specification

measuring the intensity of competition in export markets abstract this paper develops an approach to measuring the intensity of competition in international markets using readily available data on destination specific values and quantities of exports at the seven digit industry level the intensity of competition a group of exporters faces in a particular export market is measured by the residual demand elasticity the group faces this elasticity is identified by exchange rate shocks which rotate the supply relation of the source country export group relative to competitors located in other countries we apply this method to german exports of beer and us exports of linerboard paper the resulting estimates of market power appear to be plausible and consistent with other indicators of competition e g market shares the number of competitors providing support for the applicability of our framework in measuring competition in international markets

the demand for tourism in north east england with special reference to northumbria an empirical analysis abstract this paper examines the trends of tourism in north east england in particular we focus on the area of northumbria to show the potential of tourism for economic development in the region within this analysis we concentrate on the demand for tourism in the region and in particular we are concerned with tourism by uk residents in northumbria domestic tourism the long run relationship between domestic tourism demand and a number of economic factors effecting this demand is considered using the johansen and juselius 1990 1992 multivariate cointegration analysis an error correction model is then proposed for short run forecasting of domestic demand for tourism in northumbria

increasing convergence among european stock markets a recursive common stochastic trends analysis abstract the degree of convergence among three major european stock markets is analyzed within the framework of a recursive common stochastic trends analysis the results point towards a decreasing number of common stochastic trends influencing the stock markets i e the degree of convergence among european stock markets has been increased during the recent two decades

country competition and us overseas assembly to examine the role of international competition in outsourcing production decisions i study the decisions of producers who used the u s overseas assembly program oap to conduct assembly operations in developing countries the evidence which is based on u s oap imports between 1991 to 2000 shows that production costs and corporate tax policies both shaped production decisions while increases in own country costs reduced the size of a developing country s oap shipments increases in competitor costs helped to increase a country s shipments the effects of competitor country cost changes were relatively large as the analysis suggests that a ten percent increase in competing country costs would increase a country s oap outsourcing activities by 5 8 percent while a ten percent increase in competitor country taxes would increase a country s oap exports by 1 6 percent

the nobel memorial prize for clive w j granger clive granger developed the econometric foundations for analysing and modelling non stationary macroeconomic time series forging an approach that has become the dominant paradigm in empirical macroeconomic research based on a critique of potential nonsense regressions in applied econometric models of non stationary data granger s concept of cointegration facilitated the merging in a unified framework of economic theory about equilibrium relationships with dynamic econometric models of short run behaviour this provided a remarkable leap forward in the empirical analysis of macroeconomic relationships and in testing macroeconomic theories extending to non stationary macroeconomic time series the formulation by nobel laureate trygve haavelmo of an economy as a system of simultaneous stochastic relationships major policy institutions around the world on a day to day basis now use empirical econometric models in which cointegrated relations determine the long run outcomes his research has spawned an industry veritably opening a door to powerful ideas and procedures that many have followed and helped to extend ever since there are in excess of 2 800 citations to his joint paper on cointegration with robert engle who shared the 2003 prize in recognition of his achievements in developing methods of analysing economic time series with common trends cointegration clive granger was awarded the sveriges riksbank prize in economic science in memory of alfred nobel in october 2003 this article is a complement to frank diebold s fine appreciation of engle s contributions where volatility and factor models including common trends are addressed

the nature of outsourcing relationships evidence from oap prices i introduction the dramatic growth in international outsourcing has fueled the expansion of international trade and deepened international integration 1 developments in outsourcing attract public attention due to concern that improvements in information technologies enable companies to relocate production or assembly activities to lower cost overseas locations 2 however while international outsourcing allows firms to take advantage of factor price differences grossman and helpman 2005 demonstrate that country cost differences are not sufficient by themselves to guarantee outsourcing as international outsourcing decisions are based on many factors including the costs of search and customization more generally new research in international trade recognizes information as a key element in the globalization process however informational improvements such as reduced communication costs or increasingly sophisticated bar code transmission and management tools may not affect all producers uniformly as ranch and trindade 2003 show product differentiation in consumption or production when combined with informational uncertainty produces a degree of natural protection for this reason information technology improvements are likely to deliver the greatest increases in global integration for those markets where the matching of differentiated partners is critical to the formation of new international partnerships similarly as noted by antras 2003 and bernard et al 2010 the organization of a firm s global operations depends further on factors including the importance of headquarters investments and the degree of product contractibility 3 a key goal of this paper is to study whether outsourcing decisions are consistent with outsourcing models that feature search and adaptation costs to this end this paper studies u s outsourcing conducted under the auspices of the overseas assembly program or oap the oap program was designed to allow firms to avoid tariffs on u s origin inputs that they utilized in final goods they assembled overseas thus while the oap does not include all u s outsourcing activities it does not capture u s assembly of foreign parts or overseas contract manufacturing that is based on u s designs and specifications oap imports provide insight into a wide swath of u s outsourcing and represented 8 5 of u s import value during the sample period since the oap provides tariff benefits to manufacturers who use u s inputs in their overseas production it is administered by u s customs consequently while the oap provides insights into manufacturing outsourcing decisions it does not provide information on developments in services outsourcing since oap exempts u s inputs from tariffs the program requires participating firms to provide detailed information on the u s and foreign content of their outsourcing imports thus oap data records facilitate the precise measurement of cost shocks and trade frictions at the country product level in particular heterogeneity in input choices both across countries and products can be exploited to identify cost pass through and general price responses for outsourcing imports for example year by year pass through can be estimated by regressing yearly oap price changes at the product country level on product country cost changes plots of the year by year coefficients in figure 1 show that the raw rate of oap pass through ranged from 6 to 23 4 however accurate outsourcing pass through estimation requires a theory based estimation framework that controls for economic factors that also influence price decisions this paper adopts feenstra s 1989 passthrough model which is modified to account for the cost structure and tariff treatment facing outsourcing firms who produced products for import under the oap this framework which is based on a bertrand model of competition in internationally differentiated goods focuses its attention on cost pass through and on the degree to which producers emulate the price changes of their competitors

natural gas demand at the utility level an application of dynamic elasticities abstract previous studies provide strong evidence that energy demand elasticities vary across regions and states arguing in favor of conducting energy demand studies at the smallest unit of observation for which good quality data are readily available that is the utility level we use monthly data from the residential sector of xcel energy s service territory in colorado for the period january 1994 to september 2006 based on a very general autoregressive distributed lag model this paper uses a new approach to simulate the dynamic behavior of natural gas demand and obtain dynamic elasticities knowing consumers response on a unit time basis enables one to answer a number of questions such as the length of time needed to reach demand stability responses to price and income were found to be much lower even in the long run than has been commonly suggested in the literature interestingly we find that the long run equilibrium is reached relatively quickly around 18 months after a change in price or income has occurred while the literature implies a much longer period for complete adjustments to take place

the impact of international trade on wages since the early 1980s the us economy has experienced a growing wage differential high skilled workers have claimed an increasing share of available income while low skilled workers have seen an absolute decline in real wages how and why this disparity has arisen is a matter of ongoing debate among policymakers and economists two competing theories have emerged to explain this phenomenon one focusing on international trade and labour market globalization as the driving force behind the devaluation of low skill jobs and the other focusing on the role of technological change as a catalyst for the escalation of high skill wages this collection brings together innovative new ideas and data sources in order to provide more satisfying alternatives to the trade versus technology debate and to assess directly the specific impact of international trade on us wages this volume offers a thorough appraisal of the wage distribution predicament examining the continued effects of technology and globalization on the labour market

regression direction and weak exogeneity abstract the absence of testing for weak exogeneity in money demand has often led to stark conditioning claims regarding the validity of price equations this paper uses the johansen procedure to explore the conditioning properties of money demand systems for nonborrowed reserves m1 and m2 our results show that irrespective of the specification of the cointegrating relation a feedback mechanism enters the equation for money the opposite however is not true for the price equations the results also cast a warning for single equation models of money demand in that weak exogeneity is sensitive to how the system is defined

financial integration and the asean 5 equity markets the existence of long run relationships among the asean 5 equity markets is empirically investigated this study utilized weekly data spanning january 1988 to august 1999 the results of granger noncausality test due to toda and yamamoto journal of econometrics 66 225 50 1995 reveal that the singapore equity market was not affected by other markets except by the philippines in the long run this result shows that there exist opportunities for beneficial international portfolio diversification within the context of the asean 5 equity markets

the law of one price an examination of price integration between europe and regional markets in africa this study examines the degree of price integration of equity index assets between the major markets of africa namely morocco tunisia egypt kenya nigeria namibia and south africa with the prominent european markets of london and paris the application of vector autoregressive and autoregressive distributed lag methods reveals that african markets are largely price segmented the only markets that are price integrated have shared economic and financial institutions such as namibia and south africa and egypt tunisia and france the evidence suggests that development policy should be focussed on enhancing existing institutions rather than embarking prematurely on regional integration

a multivariate cointegration analysis of the role of energy in the us macroeconomy abstract this paper extends my previous analysis of the causal relationship of gdp and energy use in the usa in the post war period a majority of the relevant variables are integrated justifying a cointegration analysis the results show that cointegration does occur and that energy input cannot be excluded from the cointegration space the results are plausible in terms of macroeconomic dynamics the results are similar to my previous granger causality results and contradict claims in the literature based on bivariate models that there is no cointegration between energy and output

estimating saving investment correlations evidence for oecd countries based on an error correction model abstract saving investment correlations are important stylized facts in open economy macroeconomics and indicators of capital mobility they are best estimated by an error correction model ecm because an ecm is consistent with intertemporal general equilibrium models the ecm is a synthesis of previous approaches applying the ecm to the oecd countries we find that in general saving and investment are cointegrated the ecm is more powerful in detecting cointegration than the two step engle granger procedure estimates of the saving investment correlation are robust with respect to overdifferencing we find evidence of a large country effect and an increase in capital mobility within the oecd area

a survey of some recent econometric methods this survey is written mainly for the applied economist though we hope that the specialist econometrician will find something of interest too our aim has been to try to bring the applied worker as up to date as possible and in the process to improve the quality of applied work by providing access to the latest ideas in econometrics we have tried to describe and explain in a relatively non technical way the main developments that have taken place in the last ten years partly for reasons of space the survey is by no means exhaustive but it does cover a wide range of topics in both time series and cross section analysis among the subjects covered are the followoing the nature of data including integrated and fractionally integrated data four estimation methods maximum likelihood method of moments m estimators and non parametric estimation inference with stationary and integrated regressors a comparison of various model evaluation principles the formulation of models including dynamic specification cointegration and conditional expectations in mean and variance copyright 1989 by royal economic society

keiretsu and relationship specific investment implications for market opening trade policy abstract this paper considers the implications of relationship specific investment within keiretsu for policies aimed at opening the japanese market for intermediate goods such as auto parts both vies applied to parts and vers restricting japanese exports of autos cause the keiretsu to import a wider range of parts but of a relatively unimportant type such as seat covers since keiretsu investment and output fall the total value of us parts exports may actually fall for a given value of these exports a vie is less costly for us consumers and japanese producers but a ver is preferred by us automakers

cointegration and unit roots this paper provides an updated survey of a burgeoning literature on testing estimation and model specification in the presence of integrated variables integrated variables are a specific class of non stationary variables which seem to characterise faithfully the properties of many macroeconomic time series the analysis of cointegration develops out of the existence of unit roots and offers a generic route to test the validity of the equilibrium predictions of economic theories special emphasis is put on the empirical researcher s point of view

growth and the welfare state in the eu a causality analysis in this paper we test for causality between gdp growth andsocial protection expenditure in the european union to that end we apply hsiao s 1981 sequential procedure to data for twelveeu countries along the 1970 1994 period our results suggestthat for belgium germany ireland luxembourg the netherlands portugal and spain causality runs only from social protectiongrowth to gdp growth while for denmark france greece italy and the united kingdom no causality is found between socialprotection growth and gdp growth

public debt in brazil sustentability and its implications abstract this paper tests sustainability of brazilian public debt in the period 1991 to 2009 and analyzes implications of requiring that the brazilian fiscal policy be primarily committed to the sustainability of the public debt the retrospective analysis utilizes a set of unit root tests and avoids some of the criticism leveled at previous studies by using data which has not previously been used for this purpose and concludes that the public debt was sustainable in the period we consider the prospective analysis is based on the dsge model proposed by jodi gali et al 2007 calibrated for brazil using the conclusions of the retrospective analysis for the fiscal parameters the scenarios produced with the help of the model show that maintaining the sustainability of the public debt is consistent with the monetary policy of inflation targeting we also conclude that it is possible to reduce interest rates to levels below those prevalent at the end of 2010 simultaneously maintaining the stability of the trajectory of the public debt

common stochastic trends in european stock markets the objective of the paper is to investigate whether price indices of different european stock markets display a common long run trending behaviour using cointegration analysis we provide empirical evidence of common stochastic trends among five important european stock markets over the period 1975 1991

literacy sharing assortative mating or what labour market advantages and proximate illiteracy revisited abstract this paper explores the relationship between household literacy and the labour market outcomes of illiterate household members which basu narayan and ravallion 2002 report using household income and expenditure data from bangladesh bnr attribute a considerable wage premium for proximate illiterate women in off farm employment to labour productivity gains from intra household literacy sharing this wage premium also suggests that women may be more efficient recipients of literacy externalities than men we propose that any such relationship might not be due to higher labour productivity but may have other explanations such as systematically different and unobserved attributes of illiterate females married into literate households we also pay attention to the negative selection of illiterate females into non farm wage employment which contrary to received wisdom suggests that household literacy may not be unambiguously progressive for females we propose that the widely reported finding that

are stocks a good hedge against inflation evidence from emerging markets theory suggests that equities are a good hedge against inflation however most of the empirical evidence for industrialized economies suggests that the relationship between stock returns and inflation is negative one explanation is the negative correlation between inflation and real output growth this paper examines the relationship between inflation and stock returns for ten important emerging stock market esm markets namely chile mexico brazil argentina thailand s korea malaysia hong kong philippines and turkey during the 1990s to anticipate the results the relationship between stock returns and inflation for the whole sample period is positive and statistically significant for three of the sample esms while it is positive but statistically insignificant for a further three only for one esm is the relationship negative and statistically significant this result may be due to the role of money and the positive relationship between consumer prices and output

on the economic determinants of oil production theoretical analysis and empirical evidence for small exporting countries abstract in this paper decisions regarding production in oil exporting countries are studied by means of theoretical analysis and empirical investigation in particular we aim at describing the relationship between oil production levels and changes in the world oil demand and prices intertemporal production decisions by a representative oil producer are modeled by means of a partial equilibrium model in this theoretical model oil producers are subject to exogenous shocks in world oil consumption and prices oil companies can change output levels only by incurring a fixed cost results from the simulation of this model show a strong relationship between oil production and changes in world oil consumption on the contrary the effects of changes in real oil prices on oil production decisions seem to be much lower results from the simulation of the theoretical model are then empirically investigated using time series econometric techniques the empirical evidence supports the hypothesis that oil producing countries are characterized by different responses to changes in world oil demand and in real oil prices for many countries production rapidly adjusts to changes in consumption whereas responses of oil production to innovations in real oil prices are found to be not statistically significant in addition when non linearities in the relationship between world oil demand prices and output levels are allowed for evidence of asymmetric effects of shocks to exogenous variables on output levels is found for some countries

stability of money demand function revisited in china as china s economic reforms have undergone significant structural changes after 1979 it has been rather difficult to formulate a stable money demand function over the period following that year while previous literature on the long run relationship of money demand in china shows the existence of stable money demand this article revisits the stability of the china money demand function over the period after 1979 to employ the unit root tests and the cointegration tests with structural break the empirical evidence demonstrates that economic and financial deregulation did affect the stability of demand for money in china over the period 1977 to 2002 moreover the estimated long run income and interest elasticity are respectively 1 01 1 11 and 0 14 0 08 using the real m1 m2 equation in addition real income and the interest rate are found to be weakly exogenous we overall do find structural breakpoints mainly in 1980 and 1993 and they look to match clearly with corresponding critical financia

land use and income diversification comparing traditional and colonist populations in the brazilian amazon this article compares and analyzes land use and income diversification among two distinct groups of farmers in the brazilian amazon recent colonists in ouro preto do oeste rondonia and traditional long term residents along the tapajos river para we investigate the hypothesis that farmers who diversify their cash income sources clear less forest on an annual basis and we compare these livelihood choices across colonist and traditional populations in particular we develop a conceptual model based on the household production framework and use econometric models to identify determinants of diversification and forest clearing we find that diversification of agricultural cash crops is negatively correlated with forest clearing by colonists providing limited evidence for the hypothesis other significant covariates of diversification and forest clearing include cash income levels stage in family life cycle cattle ownership and chemical inputs differences in these variables and differences in household response to these variables explain variation in diversification and forest clearing across the two populations

econometric approaches to empirical models of exchange rate determination abstract this paper identifies four principal econometric approaches to the estimation and testing of asset market models of exchange rate determination the traditional static reduced form approach the error correction and co integration dynamic reduced form approaches the simultaneous equations approach and large scale multi equation macroeconometric simulation models each of these econometric approaches is evaluated with respect to its theoretical validity and the comparative properties of the empirical results obtained this leads to the conclusion that although there may be little to choose between the different theoretical exchange rate models there may be grounds for favouring a multi equation simultaneous estimation procedure for this class of models

overseas assembly and country sourcing choices abstract this paper studies the cross country pattern of u s overseas assembly activities between 1980 and 2000 to examine how outsourcing decisions are affected by changes in country and competitor costs a number of interesting regularities emerge when a country s costs rise the share of u s overseas assembly activities in that location decline conversely a country s share grows when competitor country costs increase while own and competitor country costs affect overseas assembly in all countries the magnitude of these effects is larger for developing countries in many cases the measured cost responses appear to correspond with outsourcing theories that are based on search and customization costs

linkages in international stock markets evidence from a classification procedure in this article we propose a new approach to evaluate the predictable components in stock indices using a boosting based classification technique and we use this method to examine causality among the three main stock market indices in the world during periods of large positive and negative price changes the empirical evidence seems to indicate that the standard poors 500 index contains incremental information that is not present in either the ftse 100 index financial times stock exchange index or the nikkei 225 index and that could be used to enhance the predictability of the large positive and negative returns in the three main stock market indices in the world this in turn would suggest a causality relationship running from the standard poors 500 index to both the ftse 100 and the nikkei 225 indices

an analysis of the disaggregated manufacturing exports of the asian nies to eec usa and japan this paper examines the export performance of the four asian newly industrialized economics nies by modelling their bilateral export flows to three main oecd blocks the usa japan and the european community our estimated export demand models reveal interesting asymmetries between these three areas of destination which do not emerge from previous aggregate empirical studies of nie export performance

exchange rate pass through abstract the resilience of trade balances of the major industrialized economies to changes in their exchange rates has evoked interest in the exchange rate pass through relationship so far there has not been a comprehensive survey of this literature the paper aims to fill this gap in two ways first it pieces together the theoretical literature on exchange rate pass through second it provides a critical survey of the empirical literature on exchange rate pass through emphasis is placed on the data and methodology employed in previous work this is done in order to guide future work in this growing area of research

money demand during hyperinflation and stabilization bolivia 1980 1988 i introduction the stability of demand for money equations has been at issue in both econometric research and policy analysis the academic debates about the relative merits of the traditional buffer stock and the error correction models of demand for money have centered on parameter stability 1 in policy discussion the scope for remonetization following stabilization depends on the upward shift in the demand for money and the consequent predictability of higher money demand with lower rates of inflation 2 only an increased demand for money would make further credit expansion non inflationary inflation uncertainty has a pervasive effect in the money price nexus high inflation uncertainty makes money a riskier asset depressing the demand for money on a long term and possibly short term basis this impact on the demand for money means that policies influencing inflation will have an additional effect through their impact on inflation uncertainty as well as on expected inflation this paper examines the role of inflation uncertainty in a dramatic case study bolivia during the 1980s this was a decade of extreme macroeconomic instability annual inflation rates reached over 20 000 percent motivating a subsequent stabilization which drove annual inflation rates down to less than 25 percent where they have remained for more than five years perhaps more than any other country in recent history bolivia has undergone a dramatic structural shift in its macroeconomic policy regime to what extent did the demand for money shift during this period in its sensitivity to expected inflation inflation uncertainty and to underlying monetary disequilibria as the inflation stabilization progressed how fast did the money demand parameters react to this new regime change was there scope for remonetization in bolivia following the now famous stabilization plan of august 1985 the new economic plan introduced by president victor paz estenssoro 3 previous literature on the demand for money has explored the role of inflation uncertainty with ambiguous results 4 klein 1977 observed that inflation rate uncertainty reduced the average and marginal productivity of real cash balances in providing monetary services effectively a greater volume of real cash balances is required to obtain the same quality adjusted level of cash balances while the impact on the demand for money is theoretically uncertain because the income and substitution effects work in opposite directions klein provided empirical evidence that inflation uncertainty measured by a moving five year variance around a moving ten year trend with data from 1880 to 1972 actually increased the demand for money in the united states around the same time boonekamp 1978 presented a two period mean variance model of money and bond demand highlighting the potential importance of a hedging role in the demand for money in the face of inflation uncertainty related to aspects of both of these two approaches and working with a capital asset pricing model capm sweeney 1988 drew on university of michigan survey data on inflationary expectations to resolve the theoretical ambiguity of the impact of inflation uncertainty his results based on post war quarterly u s data contrasted with those of klein by showing a negative impact of inflation uncertainty on money demand in his study of the demand for money in the six hyperinflations originally examined by cagan 1956 khan 1977 measured inflation uncertainty by the absolute value of the change in inflation his model assumed that inflation uncertainty would affect the demand for money not directly but by altering the adaptive expectations parameter in the adjustment of inflation expectations his empirical estimates implied a negative impact of inflation uncertainty on the demand for money during accelerating inflation engle 1982 introduced the concept of arch autoregressive conditional heteroskedastic models with a specific application to inflation expectations

assessing european stock markets co integration abstract this paper examines long run comovements in the uk french and german stock markets using cointegration techniques after fixing the power of the cointegration test no evidence is found of an increasing number of cointegrating vectors an alternative approach to measure increasing integration based on the speed of adjustment coefficients is proposed

money demand during hyperinflation and stabilization bulgaria 1991 2000 the demand for money in bulgaria is estimated over a ten year period 1991 2000 of high inflation and inflation uncertainty the paper distinguishes between three well defined sub periods high variable but not systematically accelerating inflation from 1991 until april 1996 the near hyperinflation period from may 1996 to february 1997 and the subsequent stabilization after the adoption of a currency board the empirical analysis utilizes a standard methodology of cointegration and error correction the functional determinants of the demand for money change during the different sub periods during the hyperinflation episode cagan s model is employed

currency substitution and nonlinear error correction in taiwan s demand for broad money we modify the conventional money demand function by including a real exchange rate variable to reflect the effect of currency substitution empirical evidence indicates that the variable is crucial to the long run stability of taiwan s money demand after finding the failure of a linear error correction model ecm in describing the dynamics of taiwan s money demand we apply a nonlinear ecm to examine its dynamics and support the appropriateness of the nonlinear model empirically

the welfare effects of repealing the u s offshore assembly provision abstract this paper develops new estimates of the welfare and domestic production effects of repealing the us offshore assembly provision oap although the controversy surrounding the oap has recently intensified the only such estimates of repealing the oap weredeveloped by finger 1976 the estimates are developed by applying a partial equilibrium trade model of a two stage production process to nineteen productct categories in which oap trade was important in 1986 the paper find that repael of the oap reduces domestic welfare however the effects are small and almost negligible in percentage terms the important effects of repeal are distributional

a structural var approach on labour taxation policies this paper presents a structural var analysis on the employment and output effects of labour tax policies in six european countries for the period 1974 1997 by considering impulse response functions it turns out that on average a shock to the total personal income tax revenues is positively correlated to employment whereas there is mixed evidence on the output effect moreover the quantitative impact of these effects especially those related to the output appears to be quite small however by introducing explicitly four labour tax parameters namely the marginal and average tax rates for the personal income tax and the payroll tax it turns out that these effects are not negligible after all for some countries it is possible to conceive labour taxes as policy instruments favouring more employment and a better economic performance however the empirical support on the sign of the output and employment effects is mixed suggesting that the same domestic fiscal policy does not produce the same im

long and short term dynamic causal transmission amongst international stock markets abstract this paper investigates the dynamic causal linkages amongst nine major international stock price indexes in order to gauge the causal transmission patterns we employ very recent methods of i vector error correction modeling and ii level var modeling with possibly integrated and cointegrated processes advocated by i toda and phillips econometrica 61 1993 1367 and ii toda and yamamoto j econometrics 66 1995 225 respectively the paper illustrates how such methods may be appropriately augmented in a compatible fashion to unearth previously unfounded linkage properties inherent amongst a system of stock price indexes in particular we demonstrate that previous research by using ordinary difference vars ignored an important component of linkages displayed purely over the long run this untapped evidence essentially provides robust and very useful information to international financial analysts and investors at a substantive level results of this study tend to support the contention offered by several studies in the literature of significant interdependencies between the established oecd and the asian markets and also the leadership of the us and uk markets over the short and long run the levels var however illustrate the japanese market s influence as an additional long run leader findings seem to be plausible given that these three markets us uk and japan have consistently contributed over 75 of global stock market capitalization over the major part of the sample under consideration at a methodological level this analysis also provides a primer for the wealth of applied financial econometric research focusing on dynamic causal inference which involve systems containing possibly integrated and cointegrated processes

the cyclicality of price cost margins in banking an empirical analysis of its determinants i introduction in this paper we study the cyclical behavior of price cost margins in banking calculated as the difference between the interest rate on loans and deposits using time series quarterly data for the period 1979 2005 in the united states this cyclical behavior of banks price cost margins a key fact about business fluctuations has received little attention before dueker and thornton 1997 find evidence that in cyclical downturns banks opt for a relatively high price cost margin however they focus exclusively on the markup of the bank prime lending rate over the marginal cost of funds for banks mandelman 2006 presents evidence on the cyclicality of margins for a large sample of countries and uses foreign bank penetration to explain the behavior of margins 1 in olivero 2005 aliaga diaz 2006 and aliaga diaz and olivero 2010a we document the countercyclicality of banks price cost margins in the united states in that paper we do so using an atheoretical methodology based on var forecast errors to measure comovement between variables 2 in this paper we build on this atheoretical evidence and take a step further by constructing an empirical model of the determinants of the cyclical behavior of margins here we take a theory based approach to decide on the inclusion of the relevant regressors that belong to this model doing so allows us to contribute to the literature by providing potential explanations for the previously documented countercyclical nature of margins monetary policy and credit risk could be suggested as the main and potentially the only determinants of the cyclical behavior of margins on the one hand the bank lending channel of monetary transmission predicts that the federal funds rate as a monetary policy indicator and margins are directly related therefore if policy rates exhibit a particular cyclical behavior not controlling for monetary policy could bias the estimations on the cyclical behavior of margins on the other hand credit risk is expected to be countercyclical and to raise margins so that default should help explain the countercyclicality of the latter based on these two observations our empirical methodology consists of two steps in a first step we test whether the negative and significant contemporaneous sample correlations between margins and a business cycle indicator are robust to the inclusion of controls related to monetary policy default risk and banking regulation results show it is so that there seems to be other channels through which fluctuations in the economy give rise to the observed countercyclicality of margins in a second step we look for these channels and offer several potential explanations for the observed behavior interest rate risk the economy s financial depth banks liquidity and capitalization and the share of total assets held by large banks all exert a significant impact on the behavior of margins over the business cycle these conclusions are consistent across alternative definitions of the margins and the business cycle indicator our work is linked to two strands of research in macroeconomics first our countercyclicality results are linked to the large literature on countercyclical markups in goods markets and its effects on aggregate demand started by rotemberg and saloner 1986 and rotemberg and woodford 1992 second price cost margins that vary endogenously and countercyclically in response to the state of the economy are a necessary condition for the existence of a financial accelerator as an amplifier of business fluctuations see for example bernanke and gertler 1989 and bernanke gertler and gilchrist 1998 therefore the countercyclical nature of price cost margins that we study here provides empirical support to the large body of literature in macroeconomic theory on this financial accelerator with price cost margins in the market for credit being countercyclical credit becomes more expensive in bad times firms may delay investment and production as a result and recessions may be exacerbated

outsourcing in a global economy we study the determinants of the location of subcontracted activity in a general equilibrium model of outsourcing and trade we model outsourcing as an activity that requires search for a partner and relationship specific investments that are governed by incomplete contracts the extent of international outsourcing depends inter alia on the thickness of the domestic and foreign market for input suppliers the relative cost of searching in each market the relative cost of customizing inputs and the nature of the contracting environment in each country

the demand for the components of broad money error correction and generalized asset adjustment sytems the distinction between bank and non bank deposits have been blurred over the last decade and this has led to changes in the demand for various types of monetary aggregates thus money demand studies which focus only on one monetary aggregate like m3 currency plus bank deposits without allowing for the altered nature of asset substitutions may lead to wrong inferences about the cause of the growth of the money this paper is concerned with the interactions between the components of broad money currency bank and non bank deposits in the long and short run the long run asset demand equations are specified to encompass the transaction and portfolio motives for demanding money while the short run asset adjustment equations are derived from an underlying dynamic cost minimizing model the short run asset adjustment model is of the error correction form and under certain assumptions is shown to nest the generalized adjustment form the model is applied to the case of australia using both quarterly and

efficiency risk aversion and portfolio insurance an analysis of financial asset portfolios held by investors in the united kingdom using data for the united kingdom the author shows that investors in six different wealth ranges hold mean variance efficient portfolios of financial assets this result permits him to estimate coefficients of relative risk aversion for investors in each wealth range the author finds that these coefficients are much higher than most previous studies have found this implies that investors 1 are unwilling to hold risky assets unless they are compensated with a sufficiently high risk premium and 2 are willing to pay for portfolio insurance the general nonavailability of portfolio insurance in the united kingdom appears to indicate a supply side rather than a demand side failure copyright 1996 by royal economic society

the message in north american energy prices how similar is the price behavior of north american natural gas fuel oil and power prices using current state of the art econometric methodology we explore the degree of shared trends across north american energy markets across these markets there appear to be effective arbitraging mechanisms for the price of natural gas and fuel oil but not for the price of electricity

consumption smoothing migration and marriage evidence from rural india a significant proportion of migration in low income countries particularly in rural areas is composed of moves by women for the purpose of marriage we seek to explain these mobility patterns by examining marital arrangements among indian households in particular we hypothesize that the marriage of daughters to locationally distant dispersed yet kinship related households is a manifestation of implicit interhousehold contractual arrangements aimed at mitigating income risks and facilitating consumption smoothing in an environment characterized by information costs and spatially covariant risks analysis of longitudinal south indian village data lends support to the hypothesis marriage cum migration contributes significantly to a reduction in the variability of household food consumption farm households afflicted with more variable profits tend to engage in longer distance marriage cum migration the hypothesized and observed marriage cum migration patterns are in dissonance with standard models of marriage or migration that are concerned primarily with search costs and static income gains