an investigation of the role of china s urban population on coal consumption abstract this paper investigates the causal relationship between urban population real gdp electricity production and coal consumption in china for the period 1971 2009 using a vector autoregression framework and a modified version of the granger 1969 causality test proposed by toda and yamamoto j econ 66 1995 225 the results suggest that there is causality running from gdp to coal consumption the variance decomposition analysis report that urban population and coal affect electricity production variability over the forecast period we also find that increasing urban population may negatively affect china s gdp over time policy measures aimed at influencing gdp could ultimately affect coal consumption

integrated regressors and tests of the permanent income hypothesis abstract we use recent research on estimation and testing in the presence of unit roots to argue that hall s 1978 t and f tests of whether consumption is predicted by lagged income or by lags of consumption beyond the first are asymptotically valid a monte carlo experiment suggests that the asymptotic t and f distributions provide a good approximation to the actual finite sample distribution

ants rationality and recruitment this paper offers an explanation of behavior that puzzled entomologists and economists ants faced with two identical food sources were observed to concentrate more on one of these but after a period they would turn their attention to the other the same phenomenon has been observed in humans choosing between restaurants after discussing the nature of foraging and recruitment behavior in ants a simple model of stochastic recruitment is suggested this explains the herding and epidemics described in the literature on financial markets as corresponding to the equilibrium distribution of a stochastic process rather than to switching between multiple equilibria

transmission of the financial and sovereign debt crises to the emu stock prices cds spreads and exchange rates abstract this paper tests for the transmission of the 2007 2010 financial and sovereign debt crises to fifteen emu countries we use daily data from 2003 to 2010 on country financial and non financial stock market indexes to analyze the stock market returns for three country groups within emu north south and small the following results hold for both the north and south european countries while the smallest countries seem to be relatively isolated from international events first we find strong evidence of crisis transmission to european non financials from us non financials but not for financials second in order to test how the sovereign debt crisis affects stock market developments we split the crisis in pre and post lehman sub periods results show that financials become significantly more dependent on changes in the difference between the greek and german cds spreads after lehman s collapse compared to the pre lehman sub period however this increase is much smaller for non financials third before the crisis euro appreciations coincide with european stock market decreases whereas this relationship reverses during the crisis finally this reversal seems to be triggered by lehman s collapse

renewable and non renewable energy use economic growth nexus the case of mena net oil importing countries abstract this study examines the energy use economic growth nexus by disaggregating energy use into two types of energy renewable and non renewable energy use our sample consists of eleven mena net oil importing countries noics during the period 1980 2012 a multivariate panel framework was used to estimate the long run relationship and the panel granger causality tests was employed to assess the causality direction among variables the empirical results provide evidence for long term equilibrium relationship between real gross domestic product gdp renewable energy use non renewable energy use real gross fixed capital formation and labor force the results provide evidence also for positive and statistically significant elasticities moreover the empirical findings from panel error correction model confirm the existence of bidirectional causality between renewable energy use and economic growth and between non renewable energy use and economic growth results that support the feedback hypothesis moreover our empirical findings provide evidence for two way bidirectional causal association in both the short and long run between renewable and non renewable energy use which proves the substitutability and interdependence between these two types of energy sources the policies implications of these results are also proposed and discussed

does money matter in canada evidence from a vector error correction model this paper investigates the statistical properties of a set of canadian and u s economic time series and uses the data to address the question of the importance of monetary variables in canadian business cycle fluctuations the individual time series are found to contain unit roots but the data reveal the existence of several economically meaningful cointegrating vectors a multivariate vector error correction model is estimated and canadian velocity which appears as an error correction term is significant in the canadian output equation this supports the contention that monetary variables have predictive content for real output copyright 1989 by mit press

evolution and information in a gift giving game abstract we examine the stochastic stability of a process of learning and evolution in a gift giving game overlapping generations of players are randomly matched to play the game they may consult information systems to learn about the past behavior of their opponents if the value of the gift is smaller than twice the cost then gifts are not given if the value of the gift is more than four times the cost then gifts are exchanged moreover in the stochastically stable equilibrium a unique information system is selected to support cooperation journal of economic literature classification numbers c62 c72 d83

the international crash of october 1987 causality tests the paper analyzes lead lag relationships for six major stock market indexes new york s p 500 tokyo nikkei london ft 30 hong kong hang seng singapore straits times and australia all ordinaries for time periods before during and after the october 1987 market crash unidirectional and bidirectional causality tests are conducted by means of the granger methodology practically no lead lag relationships are found for the pre crash and post crash periods however important feedback relationships and unidirectional causality are detected for the month of the crash there is also an increase in contemporaneous causality during and after the month of the crash in general our findings suggest that the october 1987 market crash probably was an international crisis of the equity markets and that it might have begun simultaneously in all the national stock markets

the future of branch cash holdings management is here new markov chains abstract liquidity management is one of the main concerns of the banking sector since it provides control in key areas such as treasury management working capital financing and business valuation under the assumption that branch efficiency makes a fundamental contribution towards the effective performance of the global banking institution this paper provides a new methodology markov chains by blocks in order to achieve knowledge on the branch cash holdings conditions which ensure optimal cash holdings recurring properties which help to better predict cash holdings shifts and the study of the branch cash holdings steady states using ergodic theory these findings will let bank managers know the time validity of the current cash holdings this is a crucial advantage to ensure efficient cash management while helping keep banking institutions on sound financial footing by guaranteeing the compulsory by law safety cushion it also allows bank managers to make sound decisions upon fund investments this incipient mathematical framework based on the re definition of classical theory on markov chains provides an alternative standpoint which may also apply to those dynamical systems which can be categorized into groups of similar features

energy consumption real income and temporal causality results from a multi country study based on cointegration and error correction modelling techniques abstract unlike previous studies on the causal relationship between energy consumption and economic growth this paper illustrates how the finding of cointegration i e long term equilibrium relationship between these variables may be used in testing granger causality based on the most recent johansen s multivariate cointegration tests preceded by various unit root or non stationarity tests we test for cointegration between total energy consumption and real income of six asian economies india pakistan malaysia singapore indonesia and the philippines non rejection of cointegration between variables rules out granger non causality and imples at least one way of granger causality either unidirectional or bidirectionial secondly by using a dynamic vector error correction model we then analyse the direction of granger causation and hence the within sample granger exogeneity or endogeneity of each of the variables thirdly the relative strength of the causality is gauged through the dynamic variance decomposition technique by decomposing the total impact of an unanticipated shock to each of the variables beyond the sample period into proportions attributable to shocks in the other variables including its own in the bivariate system results based on these tools of methodology indicate that while all pair wise relationships shared common univariate integrational properties only relationships for three countries india pakistan and indonesia were cointegrated for these countries temporal causality results were mixed with unidirectional causality from energy to income for india exactly the reverse for indonesia and mutual causality for pakistan the vdcs were not inconsistent with these results and provided us with an additional insight as to the relatively more dominant direction of causation in pakistan simple bivariate vector autoregressive models for the three non cointegrated systems did not indicate any direction of causality significantly in either direction

the macroeconomic implications of a resource discovery in an open economy this paper analyses the macroeconomic impact on an economy of the discovery of significant quantities of a natural resource the resource will be termed oil and the analysis is intended to be suggestive of the effects on the u k economy of the discovery of north sea oil and of possible policy responses our motivation is what appears to be an inconsistency between the commonly expressed view that north sea oil has generated unemployment by causing the exchange rate to appreciate2 and the contention of proponents of the new classical macroeconomics that the oil discovery creates no special macroeconomic problems 3 in order to abstract from microeconomic questions we shall assume that oil is perfectly tradable and that there are no extraction costs 4 we also assume that the foreign currency oil price is exogenous and rises at the foreign interest rate the effect of these assumptions is that for the economy as a whole the oil discovery can be considered as a foreign exchange windfall of fixed magnitude and we define the term oil revenue in a permanent income sense as the infinite term foreign exchange annuity value of this windfall oil revenue as defined is independent of depletion policy it accrues whether or not depletion is occurring at any date since it includes capital gains on the oil stock and depends in no way on whether the oil is exported or used domestically it will be assumed throughout that the economy operates with a flexible exchange rate and that international capital mobility is perfect at the date of discovery the economy is assumed to be at zero inflation full employment with both current and capital accounts balanced we are primarily interested in the dynamics of adjustment to the oil discovery but comparative static analysis5 provides a convenient point of departure for this purpose only we suppose that depletion is managed so as actually to realise the oil revenue each year if all the oil revenue is saved then there are no effects on demand prices or

international stock market linkages evidence from the pre and post october 1987 period abstract this paper uses recent developments in the theory of cointegration to provide new methods of testing the linkage and dynamic interactions among stock market movements our findings are in sharp contrast with previous research which discovered strong interdependence among national stock markets prior to october 1987 for the post october 1987 period however our results show that the degree of international co movements among stock price indices has increased substantially with the nikkei index the only exception furthermore the us stock market is found to have a considerable impact on the french german and uk markets in the post crash period we also find the response of the french german and uk markets to us stock market innovations to be consistent with the view of cross border informationally efficient stock markets finally we find the japanese equity market performance to have no links with both the us stock market and the stock markets in france germany and uk during the pre and post october crash period

short and long run elasticities in energy demand a cointegration approach abstract short and long run energy demand elasticities are estimated on danish annual data for 1948 1990 energy consumption the real price of energy and real gdp appear to be non stationary variables cointegration and error correction methods are therefore applied all estimated parameters have the expected signs and magnitudes and no evidence is found of a structural break in energy demand caused by the increases in real energy prices since 1973 74

a structural time series approach to modelling multiple and resurgent meat scares in italy this paper exploits a structural time series approach to model the time pattern of multiple and resurgent food scares and their direct and cross product impacts on consumer response a structural time series almost ideal demand system sts aids is embedded in a vector error correction framework to allow for dynamic effects vec sts aids italian aggregate household data on meat demand is used to assess the time varying impact of a resurgent bse crisis 1996 and 2000 and the 1999 dioxin crisis the vec sts aids model monitors the short run impacts and performs satisfactorily in terms of residuals diagnostics overcoming the major problems encountered by the customary vector error correction approach

alternative estimators of cointegrating parameters in models with nonstationary data an application to us export demand this article presents monte carlo simulations which compare the empirical performance of two alternative single equation estimators of the equilibrium parameters in a dynamic relationship the estimators considered are stock and watson s dynamic ordinary least squares dols estimator and bewley s transformation of the general autoregressive distributed lag model the results indicate that the bewley transformation produces a lower mean square error as well as superior serial correlation properties even with lower truncation lags for the lagged variables included in the estimation equation an application is then provided which examines the nature of the equilibrium relationship between aggregate us exports world trade and the us real exchange rate this confirms that estimation of the equilibrium parameters of this relationship by the bewley transformation produces results which are superior to estimation by dols

the energy rebound effect in china s light industry a translog cost function approach abstract china is in its industrialization and urbanization development stage which requires strong energy support with the largest population in the world the energy endowment of china is relatively small therefore energy conservation is one of the key tools for china s sustainable development and energy security when making policies for conservation the chinese government needs to deal with rebound effect carefully in 2012 china s light industry consumed 316 million tons of coal equivalents accounting for 9 percent of the country s total energy consumption which is about the total amount of energy consumed by south korea based on the translog cost function the magnitude of rebound effect in china s light industry is estimated for the first time using the dynamic ordinary least squares and seemingly unrelated regression methods considering the asymmetric effects of energy prices on energy consumption the rebound effect is approximately 37 7 and all the inputs are substitutes except for labor and energy the different magnitude of rebound effect between light and heavy industry is discussed and some policy implications are provided for more effective energy conservation allowing for the rebound effect

stock watson dynamic ols dols and error correction modelling approaches to estimating long and short run elasticities in a demand function new evidence and methodological implications from an application to the demand for coal in mainland china in this paper robust elasticity estimates of coal demand for china are derived using annual data 1953 92 in so doing we illustrate the use of a powerful yet practically convenient and recently developed modelling procedure devised by stock and watson known as dynamic ols dols who provide evidence based on monte carlo simulations of this estimator being superior in small samples compared to a number of alternative estimators as well as being able not only to accommodate higher orders of integration but also to account for possible simultaneity within regressors of a potential demand system furthermore cointegration and error correction methods are employed to derive short run price and income elasticities estimated results are quite robust not only in terms of statistical prowess but also in terms of economic intuition and indicate that over the long run both price and income elasticities are close to unity while short run price and income elasticities are less in absolute value than their long run counterparts there seems to be some divergence in short run parameters from a subsample analysis overall results seem to imply that for china coal consumption should remain relatively constant as future modernization strategies for economic development are pursued in addition the study has clear methodological implications for estimating the long and short run elasticities in a demand function in general and in a wide variety of fields in future applied research

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

the stabilizing effect of inventory in supply chains this paper presents a hierarchical model framework for the analysis of the stabilizing effect of inventories in multiechelon manufacturing distribution supply chains this framework is used to compare the variance of demand to the variance of replenishment orders at different echelons of the system e g retailer wholesaler empirical data and experience with management games suggest that in most industries inventory management policies can have a destabilizing effect by increasing the volatility of demand as it passes up through the chain the bullwhip effect our model helps to explain these observations and indicates mechanisms that can promote stabilization the analysis results also define sufficient conditions for the existence of stabilization and relate these conditions to the optimality of myopic control policies

cointegration and market efficiency abstract recently many economists have asserted that asset prices determined in efficient asset markets cannot be cointegrated we show that there is no general equivalence between the existence of arbitrage opportunities and cointegration or for that matter a lack of cointegration whether asset prices are cointegrated is a function of the relevant model we first show a convenient way to calculate the cointegrating vector based on necessary and sufficient conditions for cointegration we then examine particular cases including exchange rates interest rates and spot and forward exchange rates and asset prices with incoem flows reinvested and not reinvested jel f31

social cohesion and the evolution of altruism abstract in this paper we propose a stylized model to study how cohesion may affect the spread and consolidation of altruism in a large population where agents are involved in a local public good contribution game with their neighbors we show that if the contribution cost is moderate neither too high nor too low cooperation can invade and dominate the population if and only if group cohesion displays an intermediate value this reflects an interesting non monotonicity of cohesion in the evolution of altruism while some of it is needed to internalize the benefits of cooperation too much cohesion prevents the spread of altruism among the population at large

correlations in price changes and volatility across international stock markets the short run interdependence of prices and price volatility across three major international stock markets is studied daily opening and closing prices of major stock indexes for the tokyo london and new york stock markets are examined the analysis utilizes the autoregressive conditionally heteroskedastic arch family of statistical models to explore these pricing relationships evidence of price volatility spillovers from new york to tokyo london to tokyo and new york to london is observed but no price volatility spillover effects in other directions are found for the pre october 1987 period article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

estimating energy elasticity with structural changes in japan abstract the purpose of this paper is to estimate energy elasticity in japan taking into account structural changes we employ a residual based cointegration model developed by gregory and hansen gregory allan w hansen bruce e 1996 residual based tests for cointegration in models with regime shifts journal of econometrics 70 99 126 the empirical results show that the three variables have a stable relationship in the long term when considering structural changes in the second quarter of 1993 as compared with the values obtained in previous studies the income elasticity is higher and the price elasticity is lower from our analysis we can confirm whether a carbon tax will meet the objective of the kyoto protocol in conclusion the tax rate required in the case without structural changes is lower than that in the case with structural changes

imitating cooperation and the formation of long term relationships we propose that the option to maintain or to quit relationships can enforce cooperation in the prisoner s dilemma between boundedly rational agents in a large population if players imitate successful behavior and sometimes choose to experiment agents do not have the ability to follow history dependent strategies but have access to information about what behavior is on average the most successful one cooperative behavior in a homogenous population emerges if both the imitation and experimentation rate are suciently small in a heterogeneous population the same holds without a restriction on the imitation rate the results resemble eshel et al 1998 but the assumption of local interaction is substituted by the endogenous formation of relationships

the evolution of cooperation through imitation we study evolutionarily stable outcomes for a class of games that admit cooperation and conflict as possible nash equilibria we make use of two ideas existing strategies are more likely to be imitated than new strategies are to be introduced players are able to identify opponents behavior prior to interaction the long run evolutionary limit is efficient for the case of perfect recognition of opponents behavior for the case of imperfect recognition efficiency is not achieved and long run outcomes are more efficient the more accurate is the information strategies that emerge in the long run are those where players reward opponents who are likely to play the same way and punish opponents who are likely to play differently

stochastic trends and economic fluctuations are business cycles mainly the result of permanent shocks to productivity this paper uses a long run restriction implied by a large class of real business cycle models identifying permanent productivity shocks as shocks to the common stochastic trend in output consumption and investment to provide new evidence on this question econometric tests indicate that this common stochastic trend cointegration implication is consistent with postwar u s data however in systems with nominal variables the estimates of this common stochastic trend indicate that permanent productivity shocks typically explain less than half of the business cycle variability in output consumption and investment copyright 1991 by american economic association

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

a critique of latent variable tests of asset pricing models abstract latent variable tests of asset pricing models make assumptions about the joint distribution of observable returns and unobservable benchmark returns these tests can falsely accept models when a mean variance efficient portfolio other than the benchmark satisfies the distributional assumptions imposed on the benchmark portfolio also because the assumptions are untestable there is no way to discover whether a model is being rejected because the assumptions are false without these assumptions however latent variable tests can be viewed only as tests of distributional hypotheses about mean variance efficient portfolios of unknown composition

energy and economic growth in the usa a multivariate approach abstract this paper examines the causal relationship between gdp and energy use for the period 1947 90 in the usa the relationship between energy use and economic growth has been examined by both biophysical and neoclassical economists in particular several studies have tested for the presence of a causal relationship in the granger sense between energy use and economic growth however these tests do not allow a direct test of the relative explanatory powers of the neoclassical and biophysical models a multivariate adaptation of the test vector autoregression var does allow such a test a var of gdp energy use capital stock and employment is estimated and granger tests for causal relationships between the variables are carried out although there is no evidence that gross energy use granger causes gdp a measure of final energy use adjusted for changing fuel composition does granger cause gdp

energy models for demand forecasting a review abstract energy is vital for sustainable development of any nation be it social economic or environment in the past decade energy consumption has increased exponentially globally energy management is crucial for the future economic prosperity and environmental security energy is linked to industrial production agricultural output health access to water population education quality of life etc energy demand management is required for proper allocation of the available resources during the last decade several new techniques are being used for energy demand management to accurately predict the future energy needs in this paper an attempt is made to review the various energy demand forecasting models traditional methods such as time series regression econometric arima as well as soft computing techniques such as fuzzy logic genetic algorithm and neural networks are being extensively used for demand side management support vector regression ant colony and particle swarm optimization are new techniques being adopted for energy demand forecasting bottom up models such as markal and leap are also being used at the national and regional level for energy demand management

modeling the demand for u k broad money 1871 1913 in this paper the author obtains and interprets estimates of short and long run demand for money in the united king dom in the period 1871 1913 utilizing high quality data on broad money and its determinants and applying recent econometric techniques a unique theoretically consistent long run function is estimated as well as a short run dynamic demand function that is formally superio r to a number of previous estimates copyright 1993 by mit press

information distortion in a supply chain the bullwhip effect this article originally appeared in management science april 1997 volume 43 number 4 pp 546 558 published by the institute of management sciences consider a series of companies in a supply chain each of whom orders from its immediate upstream member in this setting inbound orders from a downstream member serve as a valuable informational input to upstream production and inventory decisions this paper claims that the information transferred in the form of orders tends to be distorted and can misguide upstream members in their inventory and production decisions in particular the variance of orders may be larger than that of sales and distortion tends to increase as one moves upstream a phenomenon termed bullwhip effect this paper analyzes four sources of the bullwhip effect demand signal processing rationing game order batching and price variations actions that can be taken to mitigate the detrimental impact of this distortion are also discussed

an empirical analysis of gasoline demand in denmark using cointegration techniques abstract danish time series data covering the period 1948 1991 are used in order to estimate short run and long run elasticities in gasoline demand a cointegration test for a stable long run relationship between the variables in the model proves to be positive showing a smaller value of the long run price elasticity than often quoted in empirical studies of gasoline demand finally an error correction model is estimated

estimating the rebound effect in us manufacturing energy consumption abstract the energy price shocks of the 1970s are usually assumed to have increased the search for new energy saving technologies where eventual gains in energy efficiencies will reduce the real per unit price of energy services and hence the consumption of energy will rise and partially offset the initial reduction in the usage of energy sources this is the rebound effect which is estimated for the us manufacturing sector using time series data applying the dynamic ols method dols when allowing for asymmetric price effects the rebound effect is found to be approximately 24 for the us manufacturing sector

integration vs segmentation in the canadian stock market this paper examines the issue of integration versus segmentation of the canadian equity market relative to a global north american market we compare the international and domestic versions of the capm and find that integration or the mean variance efficiency of the global market index is rejected by the data segmentation is the preferred model based on a maximum likelihood procedure correcting for thin trading we further divide the sample into securities that are interlisted in canada and the u s and those that are not integration is rejected for both groups which indicates that the source of segmentation can be traced to legal barriers based on the nationality of issuing firms empirical studies of international capital markets have left the issue of segmentation versus integration largely unresolved yet the question of national or international pricing of assets has crucial implications for financial decisions if national stock markets are segmented then international portfolios should display superior risk adjusted performance because some of the priced domestic systematic risk is diversifiable also with segmentation many irrelevance propositions for corporate financial strategy break down home firms face optimal hedging decisions as well as optimal foreign versus home borrowing decisions finally criteria for capital budgeting decisions will be quite different under national and international pricing the purpose of this paper is to shed some light on this integration versus segmentation question for the canadian equity market vis a vis a global north american market in this paper integration is defined2 as a situation where investors earn the same risk adjusted expected return on similar financial instruments in different national markets the key problem of course is the pricing

international transmission mechanisms and contagion in housing markets this paper explores international transmission mechanism and its role in contagion effect in the housing markets across six major asian cities the analysis is based on the identification of house price diffusion effects through a global vector autoregressive gvar model estimated using quarterly data for six major asian cities hong kong tokyo seoul singapore taipei and bangkok from 1991q1 to 2011q2 the empirical results indicate that the open economies heavily relying on international trade such as singapore japan tokyo taiwan taipei and thailand bangkok show positive correlations between the economy s openness and house prices which is consistent with the balassa samuelson hypothesis interestingly some region specific conditions also appear to play important roles as determinants of house price movements which may be driven by restrictive housing policies and demand supply imbalances such as singapore and bangkok these results are reasonably robust across several model specifications the findings bear significant implications for formulation of investment strategy and public policies

the energy gdp relationship in developing countries empirical evidence and stability tests abstract the elasticity of energy consumption with respect to gdp is an important element in projecting energy needs in economic development this study uses cross section and pooled cross section time series data to find that the elasticity of energy consumption with respect to gdp in developing countries is in the neighbourhood of 1 35 and significantly above one over the period covered 1970 to 1976 the relationships appear to have remained stable there are significant differences between areas of the world but the differences in the elasticities between different continents are not large

international transmission of stock market movements this paper investigates the international transmission mechanism of stock market movements by estimating a nine market vector autoregression var system using simulated responses of the estimated var system we i locate all the main channels of interactions among national stock markets and ii trace out the dynamic responses of one market to innovations in another generally speaking a substantial amount of multi lateral interaction is detected among national stock markets innovations in the u s are rapidly transmitted to other markets in a clearly recognizable fashion whereas no single foreign market can significantly explain the u s market movements also the dynamic response pattern is found to be generally consistent with the notion of informationally efficient international stock markets

modeling and analysis of cash flow bullwhip in supply chain abstract the bullwhip effect that occurs in supply chain inventory can distort demand forecasts and lead to inefficiencies such as excessive inventory stock outs and backorders in this paper we theorize that inventory bullwhip also leads to cash flow bullwhip cfb specifically this paper focuses on studying cfb by developing mathematical and simulation models to analyze the relationship between inventory and cash flow bullwhip by using cash conversion cycle ccc as a metric the mathematical models for inventory bullwhip are developed for two stage and generic multi stage supply chains and then by extending these inventory models the cfb models are developed for two stage cfb predicted by the proposed mathematical models approximately differ 14 from detailed simulation models we find that increasing variability increases inventory and cash flow bullwhip along with lead time whereas increasing the demand observation period has the opposite effect the average marginal impact of the bullwhip effect on the cfb is approximately 20 additionally the cfb is also an increasing function of an expected value of inventory and a decreasing function of an expected value of demand

the evolution of walrasian behavior consider an evolutionary context where a given number of quantity setting oligopolists tend to mimic successful behavior occasionally experimenting with some small probability in this context it is shown that the unique long run outcome of the process has all firms playing walrasian i e choosing an output that maximizes profits when taking the market clearing price as given

cointegration how short is the long run abstract when testing for cointegration and faced with short sample periods it is common for researchers to turn to more frequently sampled observations that is to move from annual to quarterly or monthly data in order to increase the number of observations we argue that such a gain in the degrees of freedom is more apparent than real essentially cointegration is a long run concept and hence requires long spans of data to give tests for cointegration much power rather than merely large numbers of observations using monte carlo simulations we demonstrate this for four popular tests for cointegration

persistence of shocks and their sources in a multisectoral model of uk output growth this paper develops a multisectoral framework for the measurement of persistence of shocks to sectoral and aggregate output and provides a decomposition of the contribution of shocks from different sources to the overall persistence measure the framework is applied to u k output data distinguishing four types of macroeconomic shocks innovations in money supply growth stock returns exchange rates and oil prices among the macro shocks exchange rate shocks have the largest persistence effects on aggregate output through their effects on manufacturing sectors the contribution of the identified macro shocks to total persistence was small however compared to that of sector specific shocks copyright 1992 by royal economic society

the causal relationships between equity indices on world exchanges the engle and granger cointegration analysis and granger causality tests are applied to monthly time series of nine major stock market indices over the period january 1982 to february 1991 to examine for causal linkages the empirical results indicate that there is adequate evidence to refute the notion of informationally efficient stock markets

evolution in dynamic linkages across daily national stock indexes abstract this article investigates how dynamic linkages among the daily rates of return of eight national stock indexes have evolved since 1972 a dynamic simultaneous equations model is estimated to describe the contemporaneous and lead lag relationships across national equity markets over three different years 1972 1980 and 1987 results reveal growing market interdependence within the same geographical region over time while there are many significant intermarket relationships within the same 24 hour period there are few significant lagged responses across markets beyond 24 hours this suggests a high degree of international market efficiency furthermore japan s market influence has been growing to rival that of the usa

inventories and the volatility of production a stylized fact associated with inventory behavior is that the variance of production exceeds the variance of sales this paper presents a model of production decisions with demand uncertainty that incorporates no nnegativity constraints on inventories even with no productivity shocks optimal behavior by the firm is consistent with this stylized fact either if demand exhibits positive serial correlation or if the firm can backlog excess demand the reason is that a demand shock affects both the actual inventory level given unchanged production and the desired level production must replenish the stock and adjust to the new desired level copyright 1987 by american economic association

long run money demand in taiwan revisited evidence from a cointegrating str approach previous studies on the nonlinearity of the money demand function focus only on short run dynamics and assume that the long run cointegrated relationship is linear which according to economic theory need not be the case thus this article focuses on the variables that make up the long run money demand function in taiwan and their determinants by using the cointegrating smoothing transition regression cstr test developed by choi and saikkonen 2004 this model is more general than the previous str model in that it may contain several transition functions and has more than a single transition variable we demonstrate our empirical results for robustness and adopt two models to ascertain whether or not the stock price should be added as a determinant of the demand for money our empirical results show the existence of a stationary long run relationship among real money demand functions for the period from 1976q1 to 2005q1 and the robustness test covers the 1980q1 2005q1 period in taiwan by comparing

renewable energy consumption co2 emissions and oil prices in the g7 countries abstract economic and societal issues related to energy security and global warming is placing greater emphasis on the consumption of renewable energy this paper presents and estimates an empirical model of renewable energy consumption for the g7 countries panel cointegration estimates show that in the long term increases in real gdp per capita and co2 per capita are found to be major drivers behind per capita renewable energy consumption these results are robust across two different panel cointegration estimators oil price increases have a smaller although negative impact on renewable energy consumption deviations from equilibrium are driven mostly by the error correction term as opposed to short term shocks short term deviations from the long term equilibrium take anywhere from between 1 3 years france and 7 3 years japan to correct

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

electricity demand and conservation potential in the chinese nonmetallic mineral products industry newhuadu business school research fund ministry of education foundation 10jzd0018 10jbg013 china sustainable energy program g 1103 13921 national social science foundation 09zd050

nonlinear equilibrium correction in u s real money balances 1869 1997 several theoretical models of money demand imply nonlinear functional forms for the aggregate demand for money characterized by smooth adjustment toward long run equilibrium in this paper we propose a nonlinear equilibrium correction model of u s money demand that is shown to be stable over the sample period from 1869 to 1997

international co movements of real and financial economic variables this study presents a first attempt at investigating whether the international co movements of real economic activity conform to the same international co movements of financial activity this study tests the international co movements of real economic activity on the one hand and financial variables such as stock returns interest rates inflation rates and risk premiums on the other hand we employ a dynamic correlation model on data from oecd countries for the period 1980 2010 our findings demonstrate that international stock markets co react in accordance with the underlying international economic forces we also document three other results first the correlation among countries with respect to real economic activity is statistically positive but the level of this correlation is lower than that of financial variables second there is a significant increase over time in the international correlation level with respect to the financial variables finally the creation of the euro monetary union

asset pricing in partially segmented markets evidence from the finnish market this paper analyzes asset pricing in a partially segmented market where citizens of a small country are allowed to hold only their domestic securities whereas the rest of the investors foreigners are essentially allowed to hold all securities in this market setting it may occur that the citizens of the small country are willing to pay less for their domestic securities than are the foreign investors the paper derives equilibrium required rates of return for different investors in this market setting which perfectly occurred in finland and tests this equilibrium model using data from the finnish stock market empirical results are consistent with the hypotheses derived from the model several studies see e g solnik 1974a and grauer and hakansson 1987 have shown that investors should diversify internationally as by so doing they can reduce the risk of their portfolio without lowering the expected return this implies that if the citizens of a certain country are by legal restrictions prohibited from holding foreign securities they may require a higher rate of return on the domestic securities than the foreign investors do this may happen because the domestic investors cannot diversify away the specific country risk in the same way that the foreign investors can thus if we could observe the prices which the foreign and domestic investors are willing to pay for these domestic securities we would expect them to differ because of this diversification effect the finnish law prohibited finnish investors from investing in foreign securities until 1986 while simultaneously allowing foreign investors to own up to 20 of the shares of any finnish company moreover since 1984 the helsinki stock exchange hse has separately quoted the prices for the unrestricted shares which can be owned both by foreign and domestic investors and for the restricted shares owned solely by domestic investors thus the market setting depicted in the previous paragraph occurred perfectly in finland during the years 1984 and 1985 in this paper our objective is to develop and test an asset pricing model which takes into account the legal restrictions in the finnish stock market in section i we specify the market structure in the finnish stock market in more detail by explaining the relevant legal restrictions affecting the market we also present some descriptive statistics on the prices of the restricted and the unrestricted on

stochastic financial analytics for cash flow forecasting abstract accurate cash flow forecasting is essential for successful management of firms and it becomes especially critical during uncertain market and credit conditions without accurate cash flow forecasting a firm may fail to meet its short term obligations and risk bankruptcy accurate cash flow forecasting can be limited by a number of factors including changes in macro economic conditions that influence liquidity in the economy customer payment behavior that can vary from time to time as well by industry and dynamics of the particular supply chain itself we develop stochastic financial analytics for cash flow forecasting for firms by integrating two models 1 markov chain model of the aggregate payment behavior across all customers of the firm using accounts receivable aging and 2 bayesian model of individual customer payment behavior at the individual invoice level as the stochastic dynamics of cash flow evolves every day the forecast can be updated every time an invoice is paid the proposed model is back tested using empirical data from a small manufacturing firm and found to differ 3 6 from actual monthly cash flow and differs approximately 2 4 compared to actual annual cash flow the forecast accuracy of the proposed stochastic financial analytics model is found to be considerably superior to other techniques commonly used furthermore in computer simulation experiments the proposed model is found to be largely robust to supply chain dynamics including when subjected to severe bullwhip effect the proposed model has been implemented in excel which allows it to be easily integrated with the accounts receivable aging data making it practicable for small and large firms

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

economic news and equity market linkages between the u s and u k abstract the source of equity market linkages between the u s and u k is investigated by focusing on intraday price movements of stock index futures contracts we document heightened u k return volatility at 11 30 a m and 1 30 p m gmt which corresponds to regular macroeconomic releases in the u k and u s respectively the response of u k equities in the half hour surrounding the u s announcements is significant and similar to price movements for u s equities to the same announcements these results support the hypothesis that the documented international equity market linkages are attributable to reactions of foreign traders to public information originating from the u s

comments on information distortion in a supply chain the bullwhip effect in this commentary we trace back how we pursued research on the bullwhip effect which resulted in the article published in management science we reflect on the evolution of this concept the impact that our work has had on industry the way our work has been used in the teaching of supply chain management and the key directions of research that have taken place since then

the long run price sensitivity dynamics of industrial and residential electricity demand the impact of deregulating electricity prices abstract this study examines the demand side of ghana s electricity sector we test two important related hypotheses 1 deregulation of electricity price does not promote energy conservation and 2 demand price relationship is not an inverted u shaped the stock and watson dynamic ols is used to address the so called second order bias the result showed that deregulation of electricity price in ghana has induced behaviours that are more consistent with energy conservation improvements the demand price relationship is an inverted u which suggests that there is a price range that end users can tolerate further price rise and still increase their consumption of electricity however the degree of price tolerability is higher for residential consumers than industrial consumers the simulation results showed that further economic growth is likely to compromise energy conservation but more in the industrial sector than the residential sector on the other hand future crude oil price is likely to deteriorate energy conservation in the initial years after 2016 but this trend is likely to reverse after the year 2020 pricing mechanisms are potent to induce energy conservation but inadequate the results suggest that they should be complemented with other stringent policies such as a mandatory energy reduction policy investment in renewables and personalization of energy efficiency programs

an evolutionary approach to pre play communication we add a round of pre play communication to a finite two player game played by a population of players pre play communication is cheap talk in the sense that it does not directly enter the payoffs the paper characterizes the set of strategies that are stable with respect to a stochastic dynamic adaptive process periodically players have an opportunity to change their strategy with a strategy that is more successful against the current population any strategy that weakly improves upon the current poorest performer in the population enters with positive probability when there is no conflict of interest between the players only the efficient outcome is stable with respect to these dynamics for general games the set of stable payoffs is typically large every efficient payoff recurs infinitely often

if homo economicus could choose his own utility function would he want one with a conscience reply in my model of the evolution of honesty 1 i assumed the existence of a signal a blush perhaps extreme values of which served to identify some individuals as being honest with certainty joseph harrington notes that without this assumption honest individuals have difficulty invading a population initially dominated by defectors for readers who do not wish to work through the algebra in his comment the argument is easily summarized in nontechnical terms suppose two honest mutants a and b arrive in an uncountably large population consisting entirely of dishonest persons and suppose that the probability that an honest person exhibits an intense blush is say 0 999 while the corresponding probability for everyone else is only 0 001 when a sees an intense blush on the face of b what will then be his estimate of the probability that b is honest assuming that a knows the laws of elementary probability and corrects for the base rate of honest persons in the population it will be zero when virtually everyone in the population is dishonest even a person with an intense blush will be pegged as dishonest provided that even the smallest fraction of dishonest persons also shows an intense blush with

repeated games played by overlapping generations of players the present paper tries to explain cooperative behaviour in an organization run by a sequence of long but finitely lived agents we show that the folk theorem holds for infinitely repeated games with overlapping generations of finitely lived players any mutually beneficial outcome can approximately be sustained if the player s life span and the overlapping periods are long enough the result is stronger than the usual folk theorems in that it employs no assumption on the stage game such as the full dimensionality of payoff set or multiplicity of equilibria

interdependencies among the nordic and u s stock markets using the concept of granger causality interdependencies among the stock market indices for four nordic countries and the u s are examined the vector autoregressive model results indicate that the u s market affected only the danish but not the norwegian finnish or swedish markets the swedish market was causally prior to both the norwegian and finnish markets the norwegian danish and finnish markets did not granger cause any other market the results indicate that the nordic stock markets are less than fully integrated

altruists egoists and hooligans in a local interaction model the authors study a population of agents each of whom can be an altruist or an egoist altruism is a strictly dominated strategy agents choose their actions by imitating others who earn high payoffs interactions between agents are local so that each agent affects and is affected by only his neighbors altruists can survive in such a world if they are grouped together so that the benefits of altruism are enjoyed primarily by other altruists who then earn relatively high payoffs and are imitated altruists continue to survive in the presence of mutations that continually introduce egoists into the population copyright 1998 by american economic association

metaanalisis de las elasticidades ingreso y precio de la demanda de energia algunas implicaciones de politica publica para america latina the aim of this paper is to analyze the variation in empirical estimates of the income and price elasticities of energy demand the evidence presented through a meta analysis allows identification of the weighted average of the income and price elasticities shows that the estimates are very heterogeneous that there is publication bias and that factors such as region energy sector among others affect its volatility the evidence also indicates that income elasticity in latin america is greater than in the oecd countries and that the price elasticity of energy demand is lower in latin america than in the oecd countries therefore continued economic growth in latin america will be accompanied by a growth in energy demand moreover the establishment of a tax in latin america under the current elasticities is less effective and will be insufficient to control the increase in energy consumption

note on the cyert davidson thompson doubtful accounts model the results of the classical cyert davidson and thompson cdt model for estimating the allowance for doubtful accounts could be made more valuable by correcting one flaw the cdt model rests on the total balance method of aging dollars and as presented its answers cannot wisely be applied to estimate real dollar amounts notably the steady state distributions derived by the model tend to underestimate actually paid dollar amounts

money growth volatility and the macroeconomy this study analyzes the effects of variability in money growth on the macroeconomy for the period 1961 1 1984 4 within the context of a vector autoregressive model that contains variables typically included in a small macro model variance decompositions and historical decompositions are used to assess the impact of money growth variability the variance decompositions suggest substantial effects of money growth variability on the long term interest rate output and the price level historical decompositions for 1979 4 1984 4 suggest substantial effects of money growth variability on the interest rate and output but smaller effects on the price level are found copyright 1988 by ohio state university press

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 evolution of cooperation in infinitely repeated games experimental evidence 1 for example in infinitely repeated prisoner s dilemma games with patient agents both cooperate and defect may be played in equilibrium even though the theory of infinitely repeated games has been used to explain cooperation in a variety of environments no definitive solution has been provided to the problem of equilibrium selection when both cooperation and defection are possible equilibrium outcomes which one should we expect to prevail previous experimental evidence has shown that subjects often fail to coordinate on a specific equilibrium when they play a small number of infinitely repeated games some subjects attempt to establish cooperative agreements while others defect but how would behavior evolve as subjects learn from previous repeated games would cooperation prevail when it can be supported in equilibrium or will subjects learn

a comparison of johansen and phillips hansen cointegration tests of forward market efficiency baillie and bollerslev revisited abstract this paper tries to clarify the issues involved in comparing the use of johansen juselius and phillips hansen cointegration estimators in testing forward market efficiency we present results generated by the two techniques from the dataset used by baillie and bollerslev

cointegration and dynamic time series models abstract this paper provides a survey of some of the recent developments in the field of econometric modelling with cointegrated time series in particular we describe the testing and estimation procedures which have become increasingly popular in the recent applied literature in addition to the two stage procedure proposed by engle and granger we consider extensions to the modelling of dynamic models with cointegrated variables such as the estimation of models with multiple cointegration vectors simultaneous systems models with seasonally integrated and cointegrated variables furthermore we illustrate the practical application of the techniques describes in the paper by means of a tutorial data set

long term relationships of major macro variables in a resource related economic model of australia a cointegration analysis abstract the paper reports the results of a simple cointegration analysis applied to bivariate causality models using data on resource output oil prices terms of trade current account and output growth to investigate the long term relationships in the sense of granger among these major macroeconomic aggregates in a resource related economic model of australia for the period 1960 90 the empirical evidence indicates that these five macro variables as formulated in our model are not random walks in addition resource production and oil prices are significantly cointegrated and they are also significantly cointegrated with the current account terms of trade and economic growth these findings provide support to the long term adjustments foundation of our resource related model

cointegration and stock prices the random walk on wall street revisited abstract one of the more famous and empirically regular instances of unit roots occurs in stock price series where they are consistent with rational expectations and efficient markets under certain assumptions in this paper we investigate the dynamic behavior of five stock prices over the volatile period from january 1972 through december 1979 finding that the series are cointegrated with one dominant common trend a component with an estimated root of 0 95 in addition we find a lesser trend and two complex roots in the cycle model these findings are validated by out of sample forecasts beginning in january 1980 in addition to mean squared error criteria the forecasts are evaluated nonparametrically in two separate applications of a test due to henriksson and merton

learning mixed equilibria we study learning processes for finite strategic form games in which players use the history of past play to forecast play in the current period in a generalization of fictitious play we assume only that players asymptotically choose best responses to the historical frequencies of opponents past play this implies that if the stage game strategies converge the limit is a nash equilibrium in the basic model plays seems unlikely to converge to a mixed strategy equilibrium but such convergence is natural when the stage game is perturbed in the manner of harsanyi s purification theorem journal of economic literature classification number c72

estimating long run economic equilibria with stochastic trends an asymptotic theory is provided to analyze a menu of currently existing estimators of cointegrated systems we study in detail the single equation ecm seecm approach of hendry our theoretical results lead to prescriptions for empirical work such as specifying seecm s nonlinearly and including lagged equilibrium relationships rather than lagged differences of the dependent variable as covariates simulations support these prescriptions and point to problems of overfitting not encountered in the semiparametric approach of phillips and hansen 1990

detrending and the money output link international evidence 1 introduction and background the question of whether there exists an empirical link between nominal money and real output has been subjected to a variety of modern econometric techniques producing conflicting results for example stock and watson 1989 use a vector autoregressive var model that accounts for several important economic variables and find that money exerts a statistically significant effect on real economic activity friedman and kuttner 1992 1993 on the other hand show that using the same specification as stock and watson but extending their sample through the 1980s obviates the money income link friedman and kuttner s results indicate that interest rates are relatively more useful in explaining movements in output thoma 1994 also reports that changes in money do not have a statistically significant impact on output in the united states more recent studies both theoretical and empirical also have shown money to have little or no direct effect on economic cycles rudebusch and svensson 1999 2002 for example conclude that the behavior of money real or nominal has no marginally significant impact on deviations of real output from potential the output gap once past movements in the gap and real rates of interest are accounted for such findings on the basis of what meyer 2001 refers to as the consensus macro model have achieved an influential position among macroeconomists and policymakers 2 other studies challenge the argument that money does not affect real output an early study by christiano and ljungqvist 1988 using a bivariate var model reports the existence of a statistically significant money to output relation in u s data davis and tanner 1997 using monthly u s data extending back to the mid 1800s find that even after interest rate effects are allowed for money remains statistically significant in explaining short run movements in real output using a rolling regression approach swanson 1998 reports a statistically significant relation between money measured as simple sum aggregates and as divisia measures and output even after an interest rate spread variable is added to the model hafer and kutan 1997 considered whether different stationarity properties of the data have influenced reported outcomes since most prior studies assume difference stationarity hafer and kutan demonstrate that estimating var models that include money and interest rate variables under the existence of trend stationarity can dramatically affect the conclusion indeed they find that using a trend stationarity assumption yields the finding that money significantly affects real output movements in the united states a common characteristic of this literature is its focus on the united states there are a few exceptions for example krol and ohanian 1990 apply the stock watson specification to data for canada germany japan and the uk although money actual and detrended significantly affects output in the uk krol and ohanian find no such affect in japan canada and germany they conclude that although detrending the growth rate of u s money affects conclusions about the role of money little is gained from this approach when applied to the other countries another exception to the u s focus is a recent study by hayo 1999 using data from 14 european union eu countries plus canada japan and the united states hayo shows that money output test results are not sensitive to the use of data in levels versus data in differences an obvious question to ask then is whether nominal money is relatively more useful than interest rates in explaining movements in real output across a wider variety of countries that includes industrial and developing economies although the studies of krol and ohanian and hayo represent a broader analysis they too focus on the money output relation in relatively industrialized financially developed countries