structural interpretation of vector autoregressions with incomplete identification revisiting the role of oil supply and demand shocks traditional approaches to structural vector autoregressions vars can be viewed as special cases of bayesian inference arising from very strong prior beliefs these methods can be generalized with a less restrictive formulation that incorporates uncertainty about the identifying assumptions themselves we use this approach to revisit the importance of shocks to oil supply and demand supply disruptions turn out to be a bigger factor in historical oil price movements and inventory accumulation a smaller factor than implied by earlier estimates supply shocks lead to a reduction in global economic activity after a significant lag whereas shocks to oil demand do not

transaction costs in the theory of unemployment this paper addresses the problem of accounting theoretically for the persistence of large scale unemployment it briefly reviews some of the well known shortcomings of the keynesian account based upon sticky wages and prices and upon robert clower s 1965 concept of effective demand arguing that these shortcomings can be seen as a failure explicitly to integrate transaction costs into the theory of unemployment the main constructive contribution of the paper is an example of a simple macro model along the lines of robert barro and herschel grossman 1971 in which transaction costs are made explicit an essential part of this example is an externality of the sort suggested by peter diamond 1982 the example provides an account of persistent unemployment with many keynesian features yet without some of the keynesian shortcomings in particular it assumes perfect wage and price flexibility

identifying a forward looking monetary policy in an open economy i identify a forward looking monetary policy function in a forecast augmented var foavar model by using forecasted macroeconomic variables in addition to the realized variables used in a standard var i find that forecasted variables play a greater role than realized variables in a central bank s policy decisions i also find that a contractionary policy shock in the foavar generates impulse responses of macroeconomic variables that are consistent with the predictions of economic theory while the same shock causes a price puzzle and a delayed overshooting response of the exchange rate in the standard model

the demand for gasoline abstract sufficient time must be allowed to elapse to assess fully the response of gasoline demand to price changes hitherto empirical work on the subject has generally not examined the period beyond 1975 moreover the extant time series studies concentrate almost exclusively on the usa this study extends both the observation period and the country coverage a vehicle stock adjustment model is estimated via its reduced form without explicit consideration of the vehicle stock itself however the estimation procedure incorporates the structure by way of constraints on the parameters cross section analysis offers additional evidence concerning the truly long run price elasticity the results suggest that there is no need to resort to elaborate models to explain adequately gasoline demand gasoline demand exhibits a long run price elasticity near unity with time lags exceeding six years while there is tentative evidence that the duration of these lags is not fixed

the economic cost of global fuel subsidies by 2015 global oil consumption will reach 90 million barrels per day in part this high level of consumption reflects the fact that many countries provide subsidies for gasoline and diesel this paper examines global fuel subsidies using the latest available data from the world bank finding that road sector subsidies for gasoline and diesel totaled 110 billion in 2012 pricing fuels below cost is inefficient because it leads to overconsumption under baseline assumptions about supply and demand elasticities the total annual deadweight loss worldwide is 44 billion incorporating external costs increases the economic costs substantially

forecasting macro variables with a qual var business cycle turning point index one criticism of vector autoregression var forecasting is that macroeconomic variables tend not to behave as linear functions of their own past around business cycle turning points a large amount of literature therefore focuses on nonlinear forecasting models such as markov switching models which only indirectly capture the relation with turning points this article investigates a direct approach to using information on turning points from the national bureau of economic research nber chronology to model and forecast macroeconomic data our qual var model includes a truncated normal latent business cycle index that is negative during nber recessions and positive during expansions we motivate our forecasting exercise by demonstrating that if starting from a linear specification a truncated normal variable is an omitted variable then forecasts of the remaining variables will become nonlinear functions of their own past we apply the qual var model to recursive out of sample forecasting and find th

the macroeconomic impact of oil earnings uncertainty new evidence from analyst forecasts we develop measures of oil earnings uncertainty oeu using analyst forecasts drawn from a large firm level dataset oeu is related to future economic downturns so some oeu measures may serve to forecast future downturns an increase in oeu also has adverse effects on the us oil sector the results are robust to conditioning on aggregate uncertainty at the same time oeu is related to increases in stock prices unlike aggregate uncertainty which has the opposite effect oeu is thus an independent influence on both the oil industry and on economic aggregates

some models for estimating technical and scale inefficiencies in data envelopment analysis in management contexts mathematical programming is usually used to evaluate a collection of possible alternative courses of action en route to selecting one which is best in this capacity mathematical programming serves as a planning aid to management data envelopment analysis reverses this role and employs mathematical programming to obtain ex post facto evaluations of the relative efficiency of management accomplishments however they may have been planned or executed mathematical programming is thereby extended for use as a tool for control and evaluation of past accomplishments as well as a tool to aid in planning future activities the ccr ratio form introduced by charnes cooper and rhodes as part of their data envelopment analysis approach comprehends both technical and scale inefficiencies via the optimal value of the ratio form as obtained directly from the data without requiring a priori specification of weights and or explicit delineation of assumed functional forms of relations between inputs and outputs a separation into technical and scale efficiencies is accomplished by the methods developed in this paper without altering the latter conditions for use of dea directly on observational data technical inefficiencies are identified with failures to achieve best possible output levels and or usage of excessive amounts of inputs methods for identifying and correcting the magnitudes of these inefficiencies as supplied in prior work are illustrated in the present paper a new separate variable is introduced which makes it possible to determine whether operations were conducted in regions of increasing constant or decreasing returns to scale in multiple input and multiple output situations the results are discussed and related not only to classical single output economics but also to more modern versions of economics which are identified with contestable market theories

the eects of fiscal policy and its interactions with monetary policy in brazil this paper analyzes the eects of fiscal policy shocks on the dynamics of the economy and the interaction between fiscal and monetary policy using structural vector autoregressions svars we test the fiscal theory of the price level for brazil analyzing the response of public sector liabilities to primary surplus shocks for the hybrid identification we find that it is not possible to distinguish empirically between ricardian monetary dominance and non ricardian fiscal dominance regimes however using sign restrictions there is some evidence that the government followed a ricardian monetary dominance regime from january 2000 to june 2008

regime switching approach to monetary policy effects even though monetary policy has kept interest rates at historically low levels the japanese economy has experienced long lasting recessions since the 1990s in this paper japanese data are employed to conduct an empirical analysis of changes in the effects of monetary policy on the real economy it is found that monetary policy effects vary depending on the phase of the business cycle and the lending attitudes diffusion indices more precisely policy effects are larger in recession but diminish in extreme recession and monetary policy is more effective when lenders attitudes are severe but less effective when they are excessively severe

commodity price volatility and the economic uncertainty of pandemics we empirically investigate the impact of economic uncertainty related to global pandemics on the volatility of the broad commodity price index as well as on the sub indexes of crude oil and gold the results show that uncertainty related to pandemics have a strong negative impact on the volatility of commodity markets and especially on crude oil market while the effect on gold market is positive but less significant

gdp nowcasting application and constraints in a small open developing economy despite data limitations an attempt is made to find out if a gdp nowcasting model can provide reliable forecasts for a small open economy two competing bayesian vector autoregressive models are tested rigorously to obtain the optimal model by minimizing in sample forecasting errors the main finding of this study is that gdp nowcasting can produce reliable results for a small open economy despite the unavailability of sufficient data sets and the lack of high frequency indicators

a literature study for dea applied to energy and environment abstract this study systematically summarizes previous research efforts on data envelopment analysis dea applied to energy and environment in the past four decades including concepts and methodologies on dea environmental assessment industrial developments are very important for all nations in terms of their economic prosperities a problem is that the development produces various pollutions on air water and other types of contaminations all of which are usually associated with our health problems and climate changes thus it is necessary for us to consider how to make a balance between economic success and pollution mitigation to maintain a high level of social sustainability in the world it is widely considered that dea is one of the methodologies to examine the level of sustainability this study examines a recent research trend on dea applications from 1980s to 2010s nowadays many researchers have paid serious attention on how to combat various difficulties in the areas of energy and environment as a result the number of articles on dea applications on energy and environment has dramatically increased particularly after 2000s however it is true that dea has strengths and drawbacks in the applications therefore it is very important for us to carefully use dea for guiding large policy issues and business strategies such as the global warming and climate change an underlying premise of this study is that technology innovation in engineering and natural science may solve various problems by linking it with political and managerial efforts the use of dea provides a methodological linkage among them so enhancing the practicality in mitigating problems due to climate change and environmental pollutions this literature study along with a summary on conceptual and methodological developments provides us with guidelines for our future research works on dea on energy and environment issues

external shocks u s monetary policy and macroeconomic fluctuations in emerging markets estimated structural vars show that external shocks are an important source of macroeconomic fluctuations in emerging markets furthermore u s monetary policy shocks affect interest rates and the exchange rate in a typical emerging market quickly and strongly the price level and real output in a typical emerging market respond to u s monetary policy shocks by more than the price level and real output in the u s itself these findings are consistent with the idea that when the u s sneezes emerging markets catch a cold at the same time u s monetary policy shocks are not important for emerging markets relative to other kinds of external shocks

gasoline demand revisited an international meta analysis of elasticities meta analysis is used to determine if there are factors that systematically affect price and income elasticity estimates in studies of gasoline demand four econometric models are estimated using long run and short run price and income elasticity estimates from previous studies as the dependent variables explanatory variables include functional form lag structure time span national setting estimation technique and other features of the model structure elasticity estimates are found to be sensitive to the inclusion or exclusion of some measure of vehicle ownership static models appear to overestimate short run elasticities underestimate long run price elasticities but pick up the full long run income responsiveness there is variation in the elasticity of demand across countries especially in the short run and gasoline demand appears to be getting more price elastic and less income elastic over time

what does the bank of japan do to east asia abstract in recent policy debates some have argued that expansionary monetary policy in japan can increase real output in japan and in japan s neighbors while others have warned that it is a beggar thy neighbor policy in this paper we estimate structural vector autoregressions to assess the effects of japanese monetary policy shocks we find that the effects of japanese monetary policy shocks on macroeconomic variation in east asia have been modest and difficult to reconcile with the beggar thy neighbor view we estimate that the asian crisis was preceded by expansionary monetary policy shocks in japan but we fail to find support for the view that these shocks contributed to the crisis

the transmission of us systemic financial stress evidence for emerging market economies abstract we provide empirical evidence that us systemic financial stress shocks us sfsss are an important driver of economic dynamics and fluctuations in emes applying a structural vector autoregression we analyze the international transmission of us sfsss to eight emes using monthly data from 1999 to 2012 us sfsss are identified as unexpected changes in the financial conditions index of the federal reserve bank of chicago findings indicate that a typical emerging market real economy experiences similar negative effects to those seen in the us real economy in response to us sfsss for international transmission our results emphasize that financial interconnectedness with the us is important relative to trade relations the analyzed cases of latin american economies suggest that indirect linkages are also important for transmitting the negative effects of us sfsss in general us sfsss act as a crucial driver of volatility in the emerging world also at business cycle frequencies

the effect of oil supply shocks on us economic activity what have we learned estimated responses of real oil prices and us gross domestic product gdp to oil supply disruptions vary widely we show that most variation is attributable to differences in identification assumptions and in the model specification models that allow for a large short run price elasticity of oil supply imply a larger response of oil prices and a larger longer lived contraction in us real gdp we find that if we condition on a range of supply elasticity values supported by microeconomic estimates the differences in the oil price responses diminishes we also examine the role of lag length of using pre 1973 data alternative measures of real economic activity and using the median response function instead of the modal structural model

comparing dsge var forecasting models how big are the differences abstract i generate priors for a vector autoregression var from a standard real business cycle rbc model an rbc model with capital adjustment costs and habit formation and a sticky price model with an unaccommodating monetary authority the response of hours worked to a tfp shock differs sharply across these models i compare the accuracy of forecasts made from each of the resulting dynamic stochastic general equilibrium vector autoregression dsge var models despite having different structural characteristics the dsge vars are comparable in terms of forecasting performance as in previous work dsge vars compare favorably with atheoretical vars

financial and fiscal interaction in the euro area crisis this time was different abstract this paper highlights the anomalous characteristics of the euro area twin crises by contrasting the aggregate macroecosnomic dynamics in the period 2009 2013 with the business cycle fluctuations of the previous decades we report three novel stylised facts first the contraction in output was marked by an anomalous downfall in private investment and an increase in households savings while consumption and unemployment followed their historical relation with gdp second households and financial corporations debts and house prices deviated from their pre crisis trends while non financial corporations debt followed historical regularities third the jumps in the public deficit gdp and debt gdp ratios in 2008 2009 were unprecedented and so was the fiscal consolidation that followed our analysis points to the financial nature of the crisis as a likely explanation for these facts importantly the anomalous increase in public debt is in large part explained by extraordinary measures in support of the financial sector which show up in the stock flow adjustments and reveal a keyinteraction between the fiscal and the financial sectors

short and long run asymmetric effect of oil prices and oil and gas revenues on the real gdp and economic diversification in oil dependent economy abstract the aim of this paper is to explore the short and long run asymmetric impact of oil prices shocks and oil and gas revenues changes on the total real gdp and the level of economic diversification of the qatar economy to this end two econometric approaches have been used 1 the a b structural vector autoregressive ab svarx model with exogenous variables where four different asymmetric oil prices and oil and gas revenues measures have been employed and 2 the nonlinear autoregressive distributed lag nardl model the results show that in the short run the responses of both total real gdp and non oil real gdp to negative shocks on real oil prices and real oil and gas revenues are higher than the impact of positive shocks indicating evidence for the existence of asymmetric impact of shocks in the short run however the results suggest that the impact of shocks do not last more than three quarters this evidence for the existence of asymmetric behavior is also confirmed by the nardl analysis which shows that in the long run positive oil prices shocks and oil and gas revenues changes have higher impact on the two proxies of economic activity than negative changes do a result that confirms the resilience of the qatar economy to negative shocks and the positive role played by the energy sector in improving the qatar economic diversification degree finally the results show that the non oil sector is completely resilient to negative shocks in the long run as the impact of negative shocks are insignificant on the non oil real gdp several policies aimed to improve the level of economic diversification of the country and delink the government revenues from oil and gas revenues are proposed and discussed

unemployment and other measures of labor market inefficiency a comparison of u k and u s labor markets 1931 96 unemployment is probably the most widely feared phenomenon of our times it represents an enormous waste of human resources reflects an important degree of inefficiency in economic systems and causes a disturbing degree of social distress organisation for economic co operation and development oecd 1994 pp 4 6 i introduction unemployment is undoubtedly one of the most researched areas of economics determinants of the number of unemployed and duration of unemployment the role of unemployment on the depreciation of human capital and on general life satisfaction the interrelationship of unemployment and inflation and unemployment and output okun s law and policies to reduce or even eliminate unemployment are just a few of the areas of research on unemployment the underlying assumption in many studies on unemployment is that there is a very close correspondence between unemployment and labor market inefficiency as witnessed in the quote by the oecd just given although rarely if ever stated there is also the assumption that a given unemployment rate indicates similar levels of inefficiency either across time and or regions or countries unfortunately and somewhat surprisingly this assumption has not been tested thus far 1 given the importance of comparisons of unemployment on the direction of macroeconomic policy of governments it is very important to determine whether unemployment is indeed a good proxy for labor market inefficiency the goal of the article therefore is to examine this issue thus we pose the following key questions 1 to what degree do unemployment rates reflect labor market efficiencies 2 if the goal is to measure relative labor market inefficiency is it meaningful to compare unemployment rates over time and 3 to what degree do differences in unemployment rates across countries reflect differences in labor market inefficiencies basic economic theory shows that inefficiency in any market depends not only on the wedge between supply and demand but also on the elasticities of demand and supply the calculation of so called harberger triangles harberger 1954 of deadweight loss dwl which has a long history in the industrial organization and public finance literatures indicates that for a given wedge between supply and demand the dwl can be very different depending on the elasticities of supply and demand interestingly however studies examining the costs of unemployment do not focus on this basic view of welfare loss studies such as gordon 1973 ahsenfelter 1980 hurd 1980 clark and oswald 1994 murphy and topel 1997 and leslie and blackaby 1999 among others examine the costs of unemployment from an individual perspective but do not measure inefficiency from a market perspective which is the focus of the harberger triangles except for a publication by fortin and bernier 1988 2 we know of no other application of calculating harberger triangles to determine the level of inefficiency in the labor market therefore this article uses labor market data from 1931 to 1996 in the united states and united kingdom to calculate the dwl of unemployment and then compares the estimates of dwl to the unemployment rate to determine how closely related inefficiency and unemployment are 3 the following section investigates the theoretical relationships between unemployment labor supply and demand elasticities and dwl from this discussion we propose two alternative measures of inefficiency the first is the unemployment loss index dwl divided by gross domestic product gdp which indicates how large labor market inefficiency is relative to total output in the economy the second measure is dwl per unemployed person a measure of the potential average gains to employing an unemployed individual section iii outlines the data and methodology used to estimate the elasticities of labor supply and labor demand over time in the united states and united kingdom allowing for changes in the elasticities over time

comparison of energy consumption and ghg emissions of open field and greenhouse strawberry production abstract the greenhouse areas in iran have expanded rapidly and the greenhouse holders have shown a great tendency to cultivation of those crops that used to be cultivated in open fields although greenhouses are intensive in terms of yield and whole year production they are considered being one of the major contributors to greenhouse gases ghg emissions in the agricultural sector in the present study strawberry cultivation in greenhouses gh and open fields of was selected as a representative of those crops which can be grown in both systems initial data were randomly collected from 70 ofs and 33 ghs in province of gilan iran energy consumption and ghg emission of two different strawberry production systems were compared moreover energy use efficiency of gh producers due to more energy consumption was studied then degrees of technical efficiency te pure technical efficiency pte and scale efficiency se were determined using data envelopment analysis dea additionally the amount of energy inputs wasted in inefficient greenhouses was assessed and energy saving was computed furthermore the effect of energy optimization on ghg emission was investigated and the total amount of ghg emission was calculated the total average of energy input and output was estimated at 35 092 4 mj ha 1 and 10 405 9 mj ha 1 for of production and similarly 1 356 932 8 mj ha 1 and 137 772 4 mj ha 1 for gh strawberry production total ghg emission was calculated as 803 4 kg co2eq ha 1 and 35083 5 kg co2eq ha 1 for of and gh production respectively based on the evaluations 20 2 273 902 8 mj ha 1 of overall energy sources can be saved if the performance of inefficient farmers is enhanced optimizing energy in the greenhouse production can result in a significant reduction in total ghg emission and the present emission of ghg can be reduced to the value of 29309 1 kg co2eq ha 1

interconnections between eurozone and us booms and busts using a bayesian panel markov switching var model summary the proposed panel markov switching var model accommodates changes in low and high data frequencies and incorporates endogenous time varying transition matrices of country specific markov chains allowing for interconnections an efficient multi move sampling algorithm draws time varying markov switching chains using industrial production growth and credit spread data several important data features are obtained three regimes appear with slow growth becoming persistent in the eurozone turning point analysis indicates the usa leading the eurozone cycle amplification effects influence recession probabilities for eurozone countries a credit shock results in temporary negative industrial production growth in germany spain and the usa core and peripheral countries exist in the eurozone copyright 2016 john wiley sons ltd

forecasting government bond yields with large bayesian vector autoregressions abstract we propose a new approach to forecasting the term structure of interest rates which allows to efficiently extract the information contained in a large panel of yields in particular we use a large bayesian vector autoregression bvar with an optimal amount of shrinkage towards univariate ar models the optimal shrinkage is chosen by maximizing the marginal likelihood of the model focusing on the us we provide an extensive study on the forecasting performance of the proposed model relative to most of the existing alternative specifications while most of the existing evidence focuses on statistical measures of forecast accuracy we also consider alternative measures based on trading schemes and portfolio allocation we extensively check the robustness of our results using different datasets and monte carlo simulations we find that the proposed bvar approach produces competitive forecasts systematically more accurate than random walk forecasts even though the gains are small

political accountability and the room to maneuver a search for a causal chain many studies of the room to maneuver make no provision for popular evaluation of policy they assert rather than demonstrate popular satisfaction with policy choices and macroeconomic outcomes the authors present a framework that explicitly models channels for popular preferences to influence policies and outcomes results for economic policy making in britain do not support the room to maneuver thesis in the authors sample 1981 to 1997 the british government was responsive to changes in political evaluations and its policy choices effectively fed back into popular evaluations of government policy however this accountability mechanism worked outside the real economy shifts in popular evaluations induced changes in policy but had no impact on inflation and economic growth government capacity to shape macroeconomic outcomes was limited and popular influence over economic policy was ineffectual this form of accountability probably existed because british citizens had difficulty gauging the real impacts of their government s policies

the analytics of svars a unified framework to measure fiscal multipliers ticities implied by the identification schemes generate a large dispersion in the estimates of tax and spending multipliers second i estimate fiscal multipliers consistent with prior distributions of the elasticities computed by a variety of empirical strategies and by employing a simple dynamic stochastic general equilibrium model i document three findings for the u s for the period 1947 2010 first the impact tax multiplier is close to 0 second the impact spending multiplier ranges between 0 35 and 1 third there is a large uncertainty in the estimates of fiscal multipliers at longer horizons yet the probability that the spending multiplier is larger than the tax multiplier is above 0 65 for up to three years after policy interventions

family labor supply with taxes over the period 1960 1983 the proportion of federal tax revenue raised by taxation of labor supply has risen from 57 77 percent in this paper we specify and estimate a model of family labor supply which treats both federal and state taxation husbands and wives labor supply are treated jointly rather than in aseparate manner as in previous research a method to calculate the virtual wage for nonworking spouses is used within a utility maximizing framework to treat correctly the joint family labor supply decision joint family efforts are found to be important the efficiency cost deadweight loss of labor taxation is estimated to be 29 6 of tax revenue raised the effect of the new 10 deduction to ease the marriage tax for working spouses leads to a prediction of 3 8 increase in wives labor supply and a 9 decrease in husbands labor supply overall taxes paid are predicted to decrease by 3 4 this abstract was borrowed from another version of this item

the dynamic impacts of monetary policy an exercise in tentative identification it is currently popular to identify monetary policy shocks with innovations in some measure of reserves or in the federal funds rate these assumptions about the interest elasticity of the supply of or demand for reserves imply monetary policy shocks that produce dynamic responses of macroeconomic variables that are anomalous relative to traditional monetary analyses this paper tentatively identifies supply and demand shocks in the markets for reserves and m2 for the 1980s and contrasts them with results for the 1970s in the later period identified monetary policy shocks have dynamic impacts that are fully consistent with traditional analyses

identifying the role of risk shocks in the business cycle using stock price data i introduction the finance literature on the forecastibility of stock returns has concluded that stock market movements are by and large not because of changes in the expected future cash flow of firms but are primarily because of changes in the risk premium that is how the expected cash flows are discounted by stock market participants cochrane 2011 1 these changes in risk premia also have important implications for real variables in the economy especially for consumption and investment an increase in the risk premium prompts households to reduce current consumption as they start to discount expected future income more heavily more importantly changes in the required return on equity alter the cost of capital of corporations when they finance new investment for firms that rely on external debt to finance marginal investment a lower stock price translates into lower net worth and therefore a higher cost of borrowing bernanke gertler and gilchrist 1999 similarly firms that rely on new equity issues are able to raise less funds from each new share when their stock price is lower even for firms that finance investment exclusively through internal funds i e retained earnings plus depreciation allowance the required return on existing shares reveals the opportunity cost of internally financed investment tobin 1969 tobin and brainard 1977 this is because at least in principle these funds can be returned to existing shareholders as dividends and new funds can then be raised from the markets through new equity shares for which investors would demand a risk premium figure 1 omitted in the aggregate u s corporations are predominantly financed through equity the dotted line in figure 1 plots the credit market liabilities of u s non financial corporations as a percent of the sum of equity and credit market liabilities in their balance sheets 2 by this measure debt financing accounts for about a third of total financing averaged over the whole sample and equity financing accounts for about two thirds the solid line in figure 1 provides an alternative measure which takes into account all financial liabilities including items such as trade payables but nets out financial assets to obtain a measure of net debt mcgrattan and prescott 2005 now debt financing accounts for only 15 of total financing in the post war period and its importance has declined in the last two decades note that both of these series are stock measures as opposed to flow measures that is they refer to financing of all past investments and do not necessarily reflect how corporations are financing investment at the margin these measures can also be biased against debt financing because most debt items are recorded on a book value basis in the flow of funds but equity is recorded on a market value basis to overcome these caveats i consider the flow components of sources of funds i e internal funds net new equity and net new debt as a share of corporate tangible investment in figure 2 several patterns emerge first the ratio of internal funds to gross capital expenditures has been close to 1 throughout the post war period in other words at least in the aggregate u s corporate investment has been by and large financed internally second new equity issuance has not been an important source of financing in fact net new stock issues have been mostly negative in the latter part of the sample this mainly reflects the preference of corporations to distribute resources to shareholders through stock buybacks rather than ordinary dividend payments because of the preferential tax treatment of long term capital gains third net new debt has contributed to about a third of aggregate financing assuming that the discrepancy in the flow account is distributed proportionally to each financing component as internal funds and net new stock issues are fairly reliable data series we can reasonably lump the rather large discrepancy item in the ffa data with net debt

on the short term predictability of exchange rates a bvar time varying parameters approach abstract in this paper we propose a bayesian vector autoregressive model with time varying parameters bvar tvp to examine the short term predictability of exchange rates an important contribution of the paper is the application of the bvar tvp model for the first time to daily data using information from financial markets another contribution is the production of forecasts in real time at the very short horizon of one trading day ahead typically used by traders and investors in financial markets we employ financial criteria and recently developed statistical tests to assess the exchange rate predictability we find that the bvar tvp model outperforms the random walk for all exchange rates these forecast gains are due primarily to the time variation of coefficients and secondly to information from other financial markets it is shown that international investors could have made statistically significant excess profits if they had followed an inter day trading strategy based on the buy sell signals generated by the model s one day ahead exchange rate forecasts even after allowing for transaction costs and risk factors

have standard vars remained stable since the crisis small or medium scale vars are commonly used in applied macroeconomics for forecasting and evaluating the shock transmission mechanism this requires the var parameters to be stable over the evaluation and forecast sample or to explicitly consider parameter time variation the earlier literature focused on whether there were sizable parameter changes in the early 1980s in either the conditional mean or variance parameters and in the subsequent period till the beginning of the new century in this paper we conduct a similar analysis but focus on the effects of the recent crisis using a range of techniques we provide substantial evidence against parameter stability the evolution of the unemployment rate seems particularly different relative to its past behavior we then discuss and evaluate alternative methods to handle parameter instability in a forecasting context while none of the methods clearly emerges as best some techniques turn out to be useful to improve the forecasting performance

drawing conclusions from structural vector autoregressions identified on the basis of sign restrictions abstract this paper discusses the problems associated with using information about the signs of certain magnitudes as a basis for drawing structural conclusions in vector autoregressions we also review available tools to solve these problems for illustration we use dahlhaus and vasishtha s 2019 study of the effects of a u s monetary contraction on capital flows to emerging markets we explain why sign restrictions alone are not enough to allow us to answer the question and suggest alternative approaches that could be used

how to solve the price puzzle a meta analysis the short run increase in prices following an unexpected tightening of monetary policy constitutes a frequently reported puzzle yet the puzzle is surprisingly easy to explain away when all published models are quantitatively reviewed we collect about 1 000 point estimates of impulse responses from 70 articles using vector autoregressive models and present a simple method of research synthesis for graphical results our ndings indicate publication selection in favor of the intuitive response of prices to a tightening the estimates depend systematically on study design when misspecications are

us monetary policy and the global financial cycle us monetary policy shocks induce comovements in the international financial variables that characterize the global financial cycle a single global factor that explains an important share of the variation of risky asset prices around the world decreases significantly after a us monetary tightening monetary contractions in the us lead to significant deleveraging of global financial intermediaries a decline in the provision of domestic credit globally strong retrenchments of international credit flows and tightening of foreign financial conditions countries with floating exchange rate regimes are subject to similar financial spillovers

common drifting volatility in large bayesian vars the general pattern of estimated volatilities of macroeconomic and financial variables is often broadly similar we propose two models in which conditional volatilities feature comovement and study them using u s macroeconomic data the first model specifies the conditional volatilities as driven by a single common unobserved factor plus an idiosyncratic component we label this model bvar with general factor stochastic volatility bvar gfsv and we show that the loss in terms of marginal likelihood from assuming a common factor for volatility is moderate the second model which we label bvar with common stochastic volatility bvar csv is a special case of the bvar gfsv in which the idiosyncratic component is eliminated and the loadings to the factor are set to 1 for all the conditional volatilities such restrictions permit a convenient kronecker structure for the posterior variance of the var coefficients which in turn permits estimating the model even with large datasets while perhaps misspecifi

household labour supply with rationing in spain this paper provides new empirical evidence on household labour supply with rationing to that end we use the latest spanish data in order to estimate three flexible functional forms namely the nles the quadratic and the hausman ruud forms and calculate the income and wage elasticities we find that the number of dependants has a negative effect on the labour supply of the female moreover the north and the east spanish regions have a clearly positive effect on the labour supply of the female whilst the north has the same effect on that of the male the elasticities of three functional forms are very similar male labour supply is slightly decreasing with the wage whilst for the female it is increasing leisure is a normal good for both spouses as expected whilst the labour hours are net substitutes

oil price drivers geopolitical uncertainty and oil exporters currencies abstract empirical relationships between crude oil prices and exchange rates of oil exporting countries tend to vary over time i use econometric models of the norwegian and canadian nominal exchange rates to investigate whether such time variation could reflect shifts in the key drivers of oil prices over time results suggest that demand and supply driven oil price increases strengthen these currencies to different extents in contrast heightened geopolitical uncertainty and associated oil price increases go together with a weakening of oil exporters currencies the latter result may explain coincidences of higher oil prices and a weakening of oil exporters currencies

the transmission of international shocks a factor augmented var approach the empirical literature on the transmission of international shocks is based on small scale vars in this paper we use a large panel of data for 17 industrialized countries to investigate the international transmission mechanism and revisit the anomalies that arise in the empirical literature we propose a factor augmented var favar that extends the model in bernanke boivin and eliasz 2003 to the open economy the main results can be summarized as follows first the dynamic effects on the uk economy of an unanticipated fall of short term interest rates in the rest of the world are real house price inflation investment gdp and consumption growth peak after one year wages peak after two years cpi and gdp deflator inflation peak during the third year second a positive international supply shock makes the distribution of the components of the uk consumption deflator negatively skewed third in response to a domestic monetary shock we find no evidence of the exchange rate and liquidity puzzles and little evidence of the forward discount and price anomalies

oil price shocks and u s economic activity abstract our understanding of the sources of oil price fluctuations and their effects on the u s economy has undergone important transformations in the last decades first several studies have demonstrated the importance of identifying the causes of oil price fluctuations whether they are driven by demand or supply shocks instead of assuming that oil price changes are exogenous to the evolution of the world s economic activity second new methodologies have allowed researchers to re evaluate the functional form of the relationship between oil prices and u s gdp its components and job flows third significant advances have been made in understanding the relationship between oil price uncertainty news economic policy uncertainty and aggregate economic activity finally investigations into the time varying nature of oil price macroeconomy relationship have provided important insights into the reasons why unexpected increases in oil prices appear to shock less now than in the 1970s this paper reviews the studies that have contributed to these different aspects of the literature

analysing gasoline demand elasticities a survey this paper is a survey of studies on gasoline demand although there are very many dxerent studies in this eld which sometimes appear to arrive at contradictory results we find that with proper stratification of studies by model and data type much of the contict turns to consensus in this survey we classtfy studies by data type and by ten d erent categories of model and with the exception of estimates on seasonal data which tend to be unstable and of certain inappropriate model formulations we find a fair degree of agreement concerning average short run and even long run income and price elasticities

a comprehensive review of data envelopment analysis dea approach in energy efficiency the main aim of this review article is to review of dea models in regarding to energy efficiency this paper reviewed and summarized the different models of dea that have been applied around the world to development of energy efficiency problems consequently a review of 144 published scholarly papers appearing in 45 high ranking journals between 2006 and 2015 have been obtained to achieve a comprehensive review of dea application in energy efficiency accordingly the selected articles have been categorized based on year of publication author s nationalities scope of study time duration application area study purpose results and outcomes results of this review paper indicated that dea showed great promise to be a good evaluative tool for future analysis on energy efficiency issues where the production function between the inputs and outputs was virtually absent or extremely difficult to acquire

a comparison of the labor force behavior of married women in the united states and canada with special attention to the impact of income taxes estimation results are presented for the probability of working the hourly wage rate and the annual hours of work for wives in seven different age groups in both the u s and canada federal and state or provincial taxes are incorporated into the analysis an iterative estimation method is employed to circumvent the statistical problems resulting from the dependence of the hours of work on the tax rate and the dependence of the tax rate on the hours of work authors

the effects of geopolitical risk and economic policy uncertainty on dry bulk shipping freight rates we examine the effects of geopolitical risk gpr and economic policy uncertainty epu on shipping freight rates using a bayesian var model a positive shock to global gpr has an immediate positiv

the sources of financial crises pre and post fed evidence this paper investigates the generation and the propagation mechanism of currency demand and supply shocks before and after world war i the structural determinants of the variability of stock prices and interest rates and the changes introduced by the creation of the fed on the dynamics of the system it is shown that in the pre 1914 era external monetary shocks interacted with a seasonal demand for money to produce financial crises the fed helped to prevent crises by insulating the u s economy from external shocks a structural vector autoregressive model provides evidence for these claims copyright 1991 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

income taxes and the labor supply of married women in quebec in recent years a substantial literature has developed for the most part in the u s concerning labor supply behavior of particular interest is the labor force behavior of married women since this raises a set of interesting theoretical and empirical issues despite the extensive research in both the u s and the u k there has been relatively little empirical investigation in canada this is surprising given the increasing importance of women in the canadian labor force and the concern expressed by policy makers 2 this study presents some empirical results on the labor supply behavior of married women in quebec using data on 2439 husband wife families for 1979 in estimating labor supply responses of married women we take into account the effect of income taxes and address the question of tax perception 3 the impact of taxes on labor supply is particularly important in the quebec context since quebec marginal tax rates are the highest in canada and it appears in north america the study also compares the results of alternative methods of estimation married women s labor supply functions are estimated using standard ols techniques a procedure suggested by heckman 12 13 which corrects for selectivity bias a two stage gls technique which also corrects for selectivity bias and a gls method applied to a system of equations the conceptual framework of labor supply determination is briefly reviewed in section ii section iii describes the data the empirical specification and the estimation strategy

measuring the effects of dollar appreciation on asia a favar approach abstract exchange rate shocks have mixed effects on economic activity in both theory and empirical var models in this paper we extend the empirical literature by considering the implications of a positive shock to the u s dollar in a factor augmented vector autoregression favar model for the u s and three large asian economies korea japan and china the favar framework allows us to represent a country s aggregate economic activity by a latent factor generated from a broad set of underlying observable economic indicators to control for global conditions we also include in the favar a global conditions index which is another latent factor generated from the economic indicators of major trading partners we find that a dollar appreciation shock reduces economic activity and inflation not only for the u s economy but also for all three asian economies this result which is robust to a number of alternative specifications suggests that in spite of their disparate economic structures and policy regimes the dollar appreciation shock affects the asian economies primarily through its impact on u s aggregate demand and this demand channel dominates the expenditure switching channel that affects a country s export competitiveness

signalling effects of monetary policy we develop a dynamic general equilibrium model in which the policy rate signals the central bank s view about macroeconomic developments to price setters the model is estimated with likelihood methods on a u s data set that includes the survey of professional forecasters as a measure of price setters inflation expectations this model improves upon existing perfect information models in explaining why in the data inflation expectations respond with delays to monetary impulses and remain disanchored for years in the 1970s u s monetary policy is found to signal persistent inflationary shocks explaining why inflation and inflation expectations were so persistently heightened the signalling effects of monetary policy also explain why inflation expectations adjusted more sluggishly than inflation after the robust monetary tightening of the 1980s

asymmetric responses of consumer spending to energy prices a threshold var approach abstract we document asymmetric responses of consumer spending to energy price shocks using a threshold vector autoregressive model estimated with bayesian methods on u s data with high and low real energy inflation regimes positive energy price shocks have a greater negative effect on consumption compared with the increase in consumption that arises from negative energy price shocks for large shocks the cumulative consumption responses are three to five times greater for positive than negative shocks in disaggregated spending data the asymmetric responses are strongest for durable goods consumption but asymmetries are also present in the responses of nondurables and services consumption

a meta analysis of the price elasticity of gasoline demand a sur approach abstract automobile gasoline demand can be expressed as a multiplicative function of fuel efficiency mileage per car and car ownership this implies a linear relationship between the price elasticity of total fuel demand and the price elasticities of fuel efficiency mileage per car and car ownership in this meta analytical study we aim to investigate and explain the variation in empirical estimates of the price elasticity of gasoline demand a methodological novelty is that we use the linear relationship between the elasticities to develop a meta analytical estimation approach based on a seemingly unrelated regression sur model with cross equation restrictions this approach enables us to combine observations of different elasticities and thus increase our sample size furthermore it allows for a more detailed interpretation of our meta regression results the empirical results of the study demonstrate that the sur approach leads to more precise results i e lower standard errors than a standard meta analytical approach we find that with mean short run and long run price elasticities of 0 34 and 0 84 respectively the demand for gasoline is not very price sensitive both in the short and the long run the impact of a change in the gasoline price on demand is mainly driven by responses in fuel efficiency and mileage per car and to a slightly lesser degree by changes in car ownership furthermore we find that study characteristics relating to the geographic area studied the year of the study the type of data used the time horizon and the functional specification of the demand equation have a significant impact on the estimated value of the price elasticity of gasoline demand

financial intermediaries instability and euro area macroeconomic dynamics abstract fitting a markov switching structural vector autoregression to euro area data we show that after taking into account heteroskedasticity the differences in the behavior of the economy between tranquil and financial distress periods e g great recession and sovereign debt crisis reflect variations in the transmission mechanism when and only when a period of financial distress occurs disruptions in financial intermediation trigger adverse effects for the real economy and turn out to be the primary source of business cycle fluctuations finally we provide strong evidence that ecb interventions in the financial sector had beneficial effects on the real economy during the sovereign debt crisis

tax revenue and the marginal cost of public funds in sweden abstract we assess the welfare cost of raising a marginal unit of tax revenue in a balanced budget general equilibrium framework the calculated social cost of an increment of public funds is sensitive to both the specific type of tax increase and the type of public spending used on the margin best guess assumptions on labor supply elasticities yield marginal costs of public funds for different fiscal mixes of between 0 67 and 4 51 at prevailing tax rates in sweden alternative labor supply assumptions well within the range of current estimates substantially affect the results and can imply infinite marginal welfare costs marginal welfare costs are also sensitive to assumptions about both the income and substitution effects of labor supply

the welfare cost of unemployment in quebec harberger s triangle meets okun s gap using duality theory under rationing the authors derive a measure of the aggr egate welfare cost of cyclical unemployment which takes into account the value of additional nonmarket activities promoted by unemploymen t this measure is then applied to the quebec economy using benchmar k general equilibrium data for 1980 comparisons are made between the results obtained from the author s welfare measure and from the redu ction in gnp as measured by okun gap according to their simulations the overestimating bias of the cost of cyclical unemployment in que bec as measured by okun gap varies between 3 and 20 percent depend ing on the assumptions used the bias is more important however whe n a permanent increase in the unemployment rate is simulated

monetary policy shocks and foreign investment income evidence from a large bayesian var abstract this paper assesses the transmission of monetary policy in a large bayesian vector autoregression based on the approach proposed by banbura et al 2010 the paper analyzes the impact of monetary policy shocks in the united states and canada not only on a range of domestic aggregates trade flows and exchange rates but also foreign investment income the analysis provides three main results first a surprise monetary policy contraction has a statistically important impact on both gross and net foreign investment income flows in both countries against the background of growing foreign wealth and investment income this result provides preliminary evidence that foreign balance sheet channels might play an increasingly significant role for monetary transmission second the impact of monetary policy on foreign investment income flows differs considerably across asset categories and over time suggesting that the investment instruments and the currency denomination of a country s foreign assets and liabilities are potentially relevant for the way in which monetary policy affects the domestic economy finally the results support existing evidence on the effectiveness of large vector autoregressions and the bayesian shrinkage approach in eliminating price and exchange rate puzzles

bayesian methods for dynamic multivariate models if dynamic multivariate models are to be used to guide decisionmaking it is important that probability assessments of forecasts or policy projections be provided when identified bayesian vector autoregression var models are presented with error bands in the existing literature both conceptual and numerical problems have not been dealt with in an internally consistent way in this paper the authors develop methods to introduce prior information in both reduced form and structural var models without introducing substantial new computational burdens their approach makes it feasible to use a single large dynamic framework for example twenty variable models for tasks of policy projections copyright 1998 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

unconventional economic policies and sentiment an international assessment this paper estimates using bayesian and global vars the spillover effects of unconventional fiscal and monetary policies implemented in the united states and in the eurozone during the last decade consumer confidence and investor sentiment indicators are introduced in the models in order to highlight the signalling channel in the responses to economic policy innovations in times of crisis our results reveal that consumer and investor perceptions of innovative economic measures are relevant to study the pass through of economic policies to the real sector in times of crisis and zero lower bound interest rates in particular the signalling channel plays an important role in successful unconventional economic policies moreover if unconventional economic policies have an impact abroad the effects are similar to those measured in the domestic country region consequently coordination and transparency are a prerequisite for ensuring short term growth after a global financial crisis

optimal price setting and inflation inertia in a rational expectations model abstract this paper presents and estimates a new keynesian monetary model for the us economy it proposes possible solutions to two problems in this model class the lack of inflation inertia and persistence in versions of these models that insist on rigorous microfoundations and rational expectations and the small contribution of technology shocks to business cycles price setting takes the form of optimal two part pricing policies formulated under conditions of upward sloping firm specific marginal cost curves furthermore this form of price setting applies not only to prices and wages but also to user costs of capital in this setting past inflation becomes a key determinant of current inflation even though price setting is entirely forward looking technology is modeled as a random walk with technology growth shocks that follow a highly persistent process the model is estimated by bayesian methods and performs significantly better than a bayesian var it generates inertial and persistent inflation and technology shocks account for a large share of business cycle variation

an analysis of energy use and relation between energy inputs and yield in tangerine production abstract the objective of this study is to determine energy balance between inputs and output for tangerine production in mazandaran province one of the most important citrus production centers in iran data is collected by administering a questionnaire in face to face interviews the results show that the highest share of energy was utilized by application of chemical fertilizers and chemicals average yield and energy consumption are calculated as 26862 5 kg ha 1 and 62260 9 mj ha 1 respectively the energy productivity and net energy value are estimated as 0 43 kg mj 1 and 8201 4 mj ha 1 respectively the ratio of energy outputs to energy inputs is approximately 0 87 in addition the cobb douglas production function is applied to estimate the econometric relationship among different forms of energy consumption the findings suggest that tangerine producers must optimize their use of indirect and non renewable energy resources they apply an excess use of some energy inputs resulting in an inverse effect on yield as well as imposing risks to natural resources and human health

real time forecasting with a mixed frequency var this article develops a vector autoregression var for time series which are observed at mixed frequencies quarterly and monthly the model is cast in state space form and estimated with bayesian methods under a minnesota style prior we show how to evaluate the marginal data density to implement a data driven hyperparameter selection using a real time dataset we evaluate forecasts from the mixed frequency var and compare them to standard quarterly frequency var and to forecasts from midas regressions we document the extent to which information that becomes available within the quarter improves the forecasts in real time this article has online supplementary materials

were there regime switches in u s monetary policy working paper 2004 14 june 2004 abstract a multivariate model identifying monetary policy and allowing for simultaneity and regime switching in coefficients and variances is confronted with u s data since 1959 the best fit is with a model that allows time variation in structural disturbance variances only among models that also allow for changes in equation coefficients the best fit is for a model that allows coefficients to change only in the monetary policy rule that model allows switching among three main regimes and one rarely and briefly occurring regime the three main regimes correspond roughly to periods when most observers believe that monetary policy actually differed and the differences in policy behavior are substantively interesting though statistically ill determined the estimates imply monetary targeting was central in the early 80s but was also important sporadically in the 70s the changes in regime were essential neither to the rise in inflation in the 70s nor to its decline in the 80s jel classification e52 e47 c53 key words counterfactuals lucas critique policy rule monetary targeting simultaneity volatility model comparison i the debate over monetary policy change in an influential paper clarida gali and gertler 2000 cgg presented evidence that us monetary policy changed between the 1970 s and the 1980 s indeed that in the 70 s it was drastically worse they found that the policy rule apparently followed in the 70 s was one that when embedded in most stochastic general equilibrium models would imply non uniqueness of the equilibrium and hence vulnerability of the economy to sunspot fluctuations of arbitrarily large size their estimated policy rule for the later period on the other hand eliminated this indeterminacy these results are a possible explanation of the volatile and rising inflation of the 70 s and of its subsequent decline the cgg analysis has two important weaknesses one is that it fails to account for stochastic volatility us macroeconomic variables and particularly the federal funds rate have gone through periods of tranquility and of agitation with forecast error variances varying greatly from period to period ignoring such variation does not lead to inconsistent estimates of model parameters when the forecasting equations themselves are constant but it strongly biases toward a finding of changed parameters tests of the stability of the forecasting equations the other weakness is that the cgg analysis rests on powerful and implausible identifying assumptions they require that we accept that the response of the monetary authority to expected future inflation and output does not depend on the recent history of inflation money growth or output it is hard to understand why this should be so especially in the 70 s when monetarism was a prominent theme in policy debates congress was requiring reports from the fed of projected time paths of monetary aggregates and financial markets were reacting sensitively to weekly money supply numbers the requirement for existence and uniqueness of equilibrium in dynamic models is that the monetary policy rule show a more than unit response of interest rates to the sum of the logs of all nominal variables that appear on the right hand side of the reaction function if we force a particular measure of expected future inflation to proxy for all the nominal variables that actually appear independently in the reaction function we are bound to get distorted conclusions on the one hand because expected future inflation will be a noisy measure of the full set of nominal influences on policy we might get downward bias in our estimates from the usual errorsin variables effect on the other hand to the extent that expected future inflation like most expected future values shows less variation than current nominal variables we could find a mistaken scaling up of coefficients

changing macroeconomic dynamics at the zero lower bound this article develops a change point var model that isolates four major macroeconomic regimes in the us since the 1960s the model identifies shocks to demand supply monetary policy and spread yield using restrictions from a general equilibrium model the analysis discloses important changes to the statistical properties of key macroeconomic variables and their responses to the identified shocks during the crisis period spread shocks became more important for movements in unemployment and inflation a counterfactual exercise evaluates the importance of lower bond yield spread during the crises and suggests that the fed s large scale asset purchases helped lower the unemployment rate by about 0 6 percentage points while boosting inflation by about 1 percentage point

monetary transmission mechanisms in a small open economy a bayesian structural var approach abstract this paper develops a bayesian structural var model for canada in order to estimate the effects of monetary policy shocks using the overnight rate target as the policy instrument i allow the policy variable and other home and foreign variables to interact with each other contemporaneously the key finding is that monetary policy affects the real economy through both the market interest rate and the exchange rate i also find that the bank of canada responds to any home and foreign variables that embodies information about future inflation and that external shocks are an important source of output fluctuations

a dea approach for estimating the agricultural energy and environmental efficiency of eu countries this study attempts to evaluate the energy and environmental efficiency of the primary sectors of the eu member state countries the evaluation is based on a non radial data envelopment analysis dea model which allows for non proportional adjustments to energy inputs and undesirable outputs and thus it provides different estimations for energy and environmental efficiency scores the 2001 2008 time period was selected for this research one of the most important findings is that countries like germany sweden or austria with strong environmental protection standards appear to be less energy and environmentally efficient compared with countries like denmark belgium spain france or ireland in addition a series of eastern european countries achieve low efficiency scores which can be characterized as expectable due to low technology level being implemented in the primary production process there are also two sub periods for this research the first one 2001 2006 covers the fully coupled with specific cultivations period for subsidy administation and the second 2007 2008 where the new decoupled subsidy scheme was implemented there are significant hints for considerable changes of energy and environmental efficiency after the implementation of the the new cap with the new member states siginificantly differ of both energy and environmental efficiency copmared with the older ones

testing whether unemployment represents intertemporal labour supply behaviour in the lucas rapping 1969 model of the labour market fluctuations in unemployment represent individuals optimally adjusting their labour supply behaviour in response to fluctuations in wage rates over the business cycle in this paper i propose and implement a misspecification test of the lucas rapping treatment of unemployment as labour supply behaviour using panel data this test extends previous such work with micro data by simultaneously allowing for intertemporal substitution uncertainty and endogenous unemployment using the standard specification of intertemporal labour supply behaviour i find strong evidence against this interpretation of unemployment there are two possible interpretations of the test results the first is that it is necessary to turn to alternative models of the labour market in which unemployed workers are off a supply function the second is that the test results indicate the necessity of moving to more complex models of intertemporal substitution however given current econometric techniques and data sets these alternative models of intertemporal substitution will be extremely difficult to test

energy consumption and projected growth in selected caribbean countries this paper examines two issues that are central to the understanding of the need to increase efficiency in the use distribution and production of energy in the caribbean region the empirical results of this paper suggest the following first the three caribbean countries provide evidence of short run bi directional granger causality from energy consumption to real gross domestic product per capita second the forecasts with a bvar model indicate that significant growth in energy demand could be expected in haiti jamaica and trinidad and tobago until at least 2010 third the increased growth in energy consumption suggests the need for long term commitments from caribbean countries to undertake a series of policy economic market and research and development measures to advance the adoption and deployment of new energy technologies

oil at risk political violence and accelerated carbon extraction in the middle east and north africa abstract what effect does the threat of expropriation have on resource extraction much of the economic literature suggests that uncertainty reduces investment but the theory of risk induced extraction suggests the opposite in this paper we test this theory in the context of political violence which poses a real threat of state destabilization and violent expropriation of property rights facing this uncertainty we find that oil producers in the middle east and north africa increase oil production in response to political violence this finding has important negative consequences for the world in terms of climate change and demonstrates a previously untested mechanism through which exhaustible resource supply is flooding the market

the trade off between equality and efficiency this paper uses a 1976 microdata base to estimate the marginal cost of reducing income inequality with a policy that has distributional effects similar to the present tax transfer system the analysis uses a simulation methodology in which only the labor supply effects are evaluated other behavioral effects are ignored the most striking finding is that marginal cost is quite high even for modest labor supply elasticities for example in the benchmark case with a weighted average economy wide uncompensated wage elasticity of 0 2 and compensated elasticity of 0 31 the disposable money income of upper income quintiles of households is depressed by 9 51 for each dollar increase in the disposable money income of lower income quintiles when income equivalent values that take account of the value of leisure are compared the marginal cost for this case is estimated to be 3 49

fragility and the effect of international uncertainty shocks abstract when economic systems are fragile even modest shocks for example a shock to international capital movements can have strong negative effects on key macroeconomic fundamentals this paper proposes a large scale bayesian vector autoregression with factor stochastic volatility to investigate the macroeconomic consequences of international uncertainty shocks in g7 countries and shows that uncertainty increases fragility the factor structure enables us to identify an international uncertainty shock by assuming that it is the joint volatility process that determines the dynamics of the variance covariance matrix of the common factors to allow for first and second moment shocks we moreover assume that the uncertainty factor enters the var equation as an additional regressor our findings suggest that an international uncertainty shock has negative effects across all economies and variables under consideration leading to strong declines in output prices exports interest rates and equity prices the precise degree of fragility varies across countries a simple correlation exercise suggests that structural differences may be partially responsible for the observed differences

debt and stabilization policy evidence from a euro area favar abstract the euro area poses a unique problem in evaluating policy a currency union with a shared monetary policy and country specific fiscal policy analysis can be further complicated if high levels of public debt affect the performance of stabilization policy we construct a framework capable of handling these issues with an application to euro area data in order to incorporate multiple macroeconomic series from each country but simultaneously treat country specific fiscal policy we develop a hierarchical factor augmented var with zero restrictions on the loadings that yield country level factors monetary policy then responds to area wide conditions but fiscal policy responds only to its country level conditions we find that there is broad quantitative variation in different countries responses to area wide monetary policy and both qualitative and quantitative variation in responses to country specific fiscal policy moreover we find that debt conditions do not diminish the effectiveness of policy in a significant manner suggesting that any negative effects must come through other channels

the role of underground storage in the dynamics of the us natural gas market a threshold model analysis abstract natural gas is an important source of energy in the global economy hence understanding the drivers of its prices is of significant interest for the many economic agents this paper investigates the role of inventories for the dynamics of the u s natural gas market our contribution is twofold first within the threshold structural var framework we demonstrate that in a low inventory regime spot prices are more responsive to economic fundamentals in comparison to situation in which the inventories are high second we present evidence that the level of natural gas inventories have a significant effect on the relationship between spot and futures prices

shocks and government beliefs the rise and fall of american inflation working paper 2004 22 september 2004 abstract the authors use a bayesian markov chain monte carlo algorithm to estimate a model that allows temporary gaps between a true expectational phillips curve and the monetary authority s approximating nonexpectational phillips curve a dynamic programming problem implies that the monetary authority s inflation target evolves as its estimated phillips curve moves the authors estimates attribute the rise and fall of post world war ii inflation in the united states to an intricate interaction between the monetary authority s beliefs and economic shocks shocks in the 1970s altered the monetary authority s estimates and made it misperceive the tradeoff between inflation and unemployment that misperception caused sharp rise in inflation in the 1970s the authors estimates indicate that policy makers updated their beliefs continuously by the 1980s policy makers beliefs about the phillips curve had changed enough to account for fed chairman paul volcker s conquest of u s inflation in the early 1980s jel classification e3 e5 key words updating beliefs policy evaluation self confirming equilibrium nash inflation ramsey outcomes i introduction today many statesmen and macroeconomists believe that inflation can largely be determined by a government monetary authority then why did the federal reserve board preside over high us inflation during the late 1960s and the 1970s and why under paul volcker did it rapidly bring inflation down during the early 1980s this paper answers these questions by estimating a model that features a particular process that makes a procession of economic shocks induce the monetary authority to alter its model of inflation unemployment dynamics the phillips curve at each date t the monetary authority updates its beliefs about the phillips curve and then recomputes a first period action recommended by a phelps problem a discounted dynamic programming problem that minimizes the expected value of a discounted quadratic loss function of inflation and unemployment 1 the monetary authority pursues the same objectives at each date using the same structural model with only its estimates of that model changing over time 2 this model of the systematic part of inflation puts the monetary authority s beliefs about the phillips curve front and center 3 we assume that the monetary authority s model of the phillips curve deviates in two subtle but important ways from what it would be in a rational expectations model e g kydland and prescott 1977 the first deviation is that while the true phillips curve is like kydland and prescott s we assume that the monetary authority omits the public s expected rate of inflation from its phillips curve by itself this omission need not prevent the outcomes of our model from coinciding with those of kydland and prescott s nor need it imply that the government s model is wrong in a way that could be detected from even an infinite sample whether the monetary authority s model is wrong in a statistically detectable way depends on how we allow the monetary authority to reestimate the parameters of its model in particular if the monetary authority were to believe that the coefficients of its phillips curve are constant over time then its estimates would converge to ones that support a self confirming equilibrium sce after convergence its estimated phillips curve would correctly describe occurrences along the sce path for inflation and unemployment such an after convergence version of our model has little hope of explaining the rise and fall of us inflation that model would have inflation fluctuating randomly around a constant sce level that coincides with kydland and prescott s time consistent suboptimal i e excessive level 4 this outcome motivates our second subtle deviation from a rational expectations equilibrium

economic policy uncertainty and the supply of business loans abstract using a vector autoregressive framework of analysis we show that banks contract their supply of business credit in response to an exogenous increase in economic policy uncertainty this contraction takes two main distinct forms on the one hand banks restrict their supply of spot funds which we document using flows of loans and term loan originations on the other hand banks also curtail their provision of liquidity insurance reducing the amount of new credit lines and embedding in them a pricing structure that reduces the probability of borrowers drawing down on the lines at the peak of the responses we find that a one standard deviation increase in epu causes a contraction in the supply of business loans between 3 and 5 on the extensive margin