disentangling demand and supply shocks in the crude oil market how to check sign restrictions in structural vars given the growing dissatisfaction with exclusion and long run restrictions in structural vector autoregressive analysis sign restrictions are becoming increasingly popular so far there are no techniques for validating the shocks identied via such restrictions although in an ideal setting the sign restrictions specify shocks of interest sign restrictions may be invali dated by measurement errors data adjustments or omitted variables we model changes in the volatility of the shocks via a markov switching ms mechanism and use this devise to give the data a chance to object to sign restrictions the approach is illustrated by considering a small model for the market of crude oil

the role of the trade channel in the propagation of oil supply shocks abstract this paper analyzes when and why idiosyncratic oil supply shocks produce large macroeconomic effects in an analytically tractable two country general equilibrium model we focus on a demand driven mechanism the trade channel which transmits oil shocks across economies through changes in the non oil goods terms of trade when the trade channel is operative we have three main consequences on the transmission of oil shocks first the macroeconomic impact of oil shocks may be large and asymmetric across countries second the magnitude of the effects is nonlinear in the size of the oil shock third terms of trade movements never ensure international risk sharing after an idiosyncratic oil supply shock

monetary policy with asset backed money we study the use of asset backed money in a neoclassical growth model with illiquid capital a mechanism is delegated control of productive capital and issues claims against the revenue it earns these claims constitute a form of asset backed money the mechanism determines i the number of claims outstanding ii the dividends paid to claim holders and iii the structure of redemption fees we find that for capital rich economies the first best allocation can be implemented and price stability is optimal however for sufficiently capital poor economies achieving the first best allocation requires a strictly positive rate of inflation in general the minimum inflation necessary to implement the first best allocation is decreasing in capital wealth

is international diversification really beneficial abstract previous research claims that low constant correlations among international stock indices create substantial risk reduction from diversification we contend that only using constant correlations is too simplistic an approach we examine international diversification by 1 using conditional correlations 2 evaluating tail risk including the effect of skewness and kurtosis and 3 examining the possible tradeoffs of standard deviation with correlation skewness and kurtosis we show that conclusions concerning diversification based solely on constant correlations across markets can be misleading since the diversification benefits are time varying are affected by non normality and depend on the benchmark country employed finally tradeoffs do exist between standard deviation and the other risk factors

risk market sensitivity and diversification much can be learned about the risk character of a portfolio by measuring its market sensitivity and diversification the author explains the meaning of these two key measures and shows how to calculate their values using corresponding measures for the individual securities in the portfolio

oil price shocks and the macroeconomy this paper examines the impact of oil price shocks and attempts to explain why the rise in oil prices up to 2008 had little impact on the world economy it makes three main arguments first that oil prices have never been as important as is popularly thought second that the most important route through which oil prices affect output is monetary policy when oil prices pass through to core inflation monetary authorities raise interest rates slowing growth based on the second argument the third argument is that high oil prices have not reduced growth in recent years because they no longer pass through to core inflation so the monetary tightening previously seen in response to high oil prices is absent it also argues that oil prices had little impact on the global recession of 20089

non gaussian diversification when size matters abstract classical portfolio theory informs investors that they should have a large number of assets in their portfolios in order to diversify risk we show that the non gaussian features of stock return distribution may not allow for this risk protection in times of crisis moreover we demonstrate empirically that if investors are risk averse and consider higher order moments they have numerous incentives not to diversify their portfolios fully this is caused by the evolution of both large losses and asymmetry of returns when the numbers of assets in a portfolio change

energy consumption at business cycle horizons the case of the united states in this paper we propose a simple extension to a keynesian type macro model by augmenting it with energy consumption we show the relationship between energy consumption and output in a macroeconomic setting and ask the question do permanent shocks dominate changes in energy consumption and output at business cycle horizons for the united states to achieve the goal of this paper we undertake a variance decomposition analysis of shocks based on a common trend and common cycle framework within a vector error correction model our main finding is that permanent shocks explain the bulk of the variations in energy consumption and output at business cycle horizons for the united states

monetary policy with interest on reserves abstract i analyze monetary policy with interest on reserves and a large balance sheet i show that conventional theories do not determine inflation in this regime so i base the analysis on the fiscal theory of the price level i find that monetary policy can peg the nominal rate and determine expected inflation with sticky prices monetary policy can also affect real interest rates and output though higher interest rates raise output and then inflation the conventional sign requires a coordinated fiscal monetary policy contraction i show how conventional new keynesian models also imply strong monetary fiscal policy coordination to obtain the usual signs i address theoretical controversies a concluding section places our current regime in a broader historical context and opines on how optimal fiscal and monetary policy will evolve in the new regime

the asymmetric impact of oil prices interest rates and oil price uncertainty on unemployment in the us abstract in this study we investigate the presence of asymmetric interactions between oil prices oil price uncertainty interest rates and unemployment in a cointegration framework utilizing the nonlinear auto regressive distributed lag nardl approach we show the asymmetric responses of unemployment to changes in oil prices oil price uncertainty and interest rates in the long run more specifically the results of our analyses suggest that an increase in oil price results in increased unemployment while there is no significant impact of reduced oil prices on the one hand reduced oil price uncertainty leads to a decrease in unemployment whereas an increase in oil price uncertainty does not have an impact we also observe increased unemployment in response to a decrease in interest rates as the impact of increased interest rates is not significant last but not least we find that option implied oil price volatility as a measure of oil price uncertainty outperforms the conditional volatility of crude oil prices in predicting unemployment this study provides valuable implications for policymakers to design sound economic policies

path dependency and input substitution implications for energy policy modelling in most policy oriented energy models the effectiveness of energy policy instruments crucially depends both on the values of the substitution elasticities between the various inputs and on the rates of technological progress in this paper we argue that due to the fixed cost nature of adjustments to relative price changes these technological parameters are affected by past developments failing to account for the role of history will result in biased parameter estimates and hence the implication for energy policy modelling is that the estimation period should be carefully selected we provide an empirical illustration using data for the netherlands

the market valuation effects of reserve regulation abstract we demonstrate that the financial market s reaction to changes in reserve regulation implies that reserve requirements are an excise tax on banking activities changes in reserve requirements do not influence yields on treasury securities or returns on broad based portfolios of nonfinancial stocks and thus do not impound new information about monetary policy moreover changes in reserve requirements have an impact on nonbank financial firms that is opposite in sign to that of banks this suggests that reserve requirements shift the locus of some financial activities from the banking sector to the nonbank sector of the financial system

money and growth an alternative approach this paper takes an alternative approach to the topic of money and growth by developing a model in which the effects of sustained capital accumulation on an evolving system of payments in addition to the conventional effects of sustained inflation on growth are examined while the effects of inflation on growth are small the effects of growth on the monetary system are substantial the results are consistent with ideas about money and growth contained in work that predates that of james tobin and miguel sidrauski as well as with evidence that money and asset demands vary systematically within economies as they develop copyright 1994 by american economic association

on real and sticky price theories of the business cycle after presenting some facts about the growth of government in western industrialized countries possible causes of this development are analyzed from a public choice perspective next some empirically tested theories which seek to explain this growth are discussed finally possible consequences for efficiency and individual liberty are examined it is shown that both the number and size of interest groups age of democracy as stated by mancur olson 1982 and the increasing share of government expenditure in gdp seem to exert a negative influence on the growth rate of gdp copyright 1986 by ohio state university press

understanding the large negative impact of oil shocks this paper oers a plausible explanation for the close link between oil prices and aggregate macroeconomic performance in the 1970s although this link has been well documented in the empirical literature standard economic models are not able to replicate this link when actual oil prices are used to simulate the models in particular standard models cannot explain the depth of the recession in 1974 75 and the strong revival in 1976 78 based on the oil price movements in that period this paper argues that a missing multiplier accelerator mechanism from standard models may hold the key

stockholding behavior of u s households evidence from the 1983 1989 survey of consumer finances most households persistently invest in riskless assets but not stocks and may do so because they perceive information required for market participation to be costly relative to expected benefits in a consumption capital asset pricing model ccapm increased risk aversion income risk and lower resources reduce the information expense sufficient to deter stockholding bivariate probit analysis using the 1983 1989 survey of consumer finances shows that households with lower risk aversion higher education and greater wealth who were nonstockholders in 1983 had an increased conditional probability of entering by 1989 whereas 1983 stockholders with lower resources more limited education and greater risk aversion were more likely to be nonstockholders by 1989

wti crude oil futures in portfolio diversification the time to maturity effect the aim of the paper is to analyze the diversification effect brought by crude oil futures contracts the most liquid commodity futures into a portfolio of stocks the studies that have documented the very low and essentially negative correlations between commodities and equities typically rely on normally distributed returns which is not the case for crude oil futures and stocks indexes moreover the particular time to maturity chosen for the future contract used as an investment vehicle is an important matter that needs to be addressed in presence of forward curves switching between backwardation and contango shapes our goal in this paper is twofold a we introduce copula functions to have a better representation of the dependence structure of oil futures with equity indexes b using this copula representation we are able to analyze in a precise manner the maturity effect in the choice of crude oil future contract with respect to its diversification benefits our finding is that in the case of distant maturities futures e g 18 months the negative correlation effect is more pronounced whether stock prices increase or decrease this property has the merit to avoid the hurdles of a frequent roll over while being quite desirable in the current trendless equity markets empirical evidence is exhibited on a database comprising the nymex wti crude oil futures and s p 500 index over a 15 year time period

the evolution of a free banking system the institutional features of models of unregulated monetary systems have often been arbitrarily and implausibly assumed this paper instead provides realistic grounding for important features by constructing a logical evolutionary account of free banking sophisticated and orderly arrangements are shown to emerge from competition and the pursuit of less costly methods of payment the emergence of standardized commodity money is followed by the development in turn of basic money transfer banking easily transferable bank liubilities and clearinghouses the features of an evolved free banking system differ from those assumed in recent models of competitive payments systems

on the dynamic effects of oil price shocks a study using industry level data abstract this paper analyzes the effects of oil price shocks on demand and supply in various industries the impulse responses of identified var models indicate that for industries that have a large cost share of oil such as petroleum refinery and industrial chemicals oil price shocks mainly reduce supply in contrast for many other industries with the automobile industry being a particularly important example oil price shocks mainly reduce demand the paper suggests that oil price shocks influence economic activities beyond that explained by direct input cost effects possibly by delaying purchasing decisions of durable goods

asymmetries in the responses of regional job flows to oil price shocks this paper studies the effect of oil price innovations on manufacturing job flows across u s states first i estimate a nonlinear structural equation model and compute impulse response functions by monte carlo integration i find asymmetries in the responses of job flows to positive and negative oil price innovations yet these asymmetries do not pass a test of symmetry on the impulse responses especially after accounting for data mining third i use a test for the absence of job reallocation to evaluate whether an unexpected increase in the real price of oil price triggers an important change in job reallocation i find that oil price shocks have limited regional allocative effects

on the determinants of corporate hedging finance theory indicates that hedging increases firm value by reducing expected taxes expected costs of financial distress or other agency costs this paper provides evidence on these hypotheses using survey data on firm s use of forwards futures swaps and options combined with computstat data on firm characteristics of 169 firms in the sample 104 firms use hedging instruments in 1986 the data suggest that firms which hedge face more convex tax functions have less coverage of fixed claims are larger have more growth options in their investment opportunity set and employ fewer hedging substitutes

oil and the macroeconomy since world war ii all but one of the u s recessions since world war ii have been preceded typically with a lag of around three fourths of a year by a dramatic increase in the price of crude petroleum this does not mean that oil shocks caused these recessions evidence is presented however that even over the period 1948 72 this correlation is statistically significant and nonspurious supporting the proposition that oil shocks were a contributing factor in at least some of the u s recessions prior to 1972 by extension energy price increases may account for much of post opec macroeconomic performance

crude oil and the macroeconomy tests of some popular notions a note perhaps no other economic events in the post world war ii era have generated as much attention as the series of crude oil price shocks that have jolted the world economy since the opec boycott of 1973 a tremendous amount of space in the popular and professional literature has been devoted to analyzing the impacts of these shocks on the developed economies and the adjustments these shocks have induced one residual of this literature has been a general impression that since 1973 the functional relationship between crude oil prices and the developed macroeconomies has been dramatically and fundamentally altered yet to our knowledge no one has formally tested this impression recent evidence of hamilton 1983 suggests that crude oil prices had a strong impact on the u s business cycle well before 1973 further while textbook treatments of oil price shocks tend to highlight cost push inflationary effects the research of berndt and wood 1975 1979 and wilcox 1983 indicates the net complementarity between energy and capital in the u s economy is quite strong both before and after 1973 thus oil price shocks may have stronger real effects than generally believed in this paper we formally test three popular notions associated with the so called

what do we learn from the price of crude oil futures summary despite their widespread use as predictors of the spot price of oil oil futures prices tend to be less accurate in the mean squared prediction error sense than no change forecasts this result is driven by the variability of the futures price about the spot price as captured by the oil futures spread this variability can be explained by the marginal convenience yield of oil inventories using a two country multi period general equilibrium model of the spot and futures markets for crude oil we show that increased uncertainty about future oil supply shortfalls under plausible assumptions causes the spread to decline increased uncertainty also causes precautionary demand for oil to increase resulting in an immediate increase in the real spot price thus the negative of the oil futures spread may be viewed as an indicator of fluctuations in the price of crude oil driven by precautionary demand an empirical analysis of this indicator provides evidence of how shifts in the uncertainty about future oil supply shortfalls affect the real spot price of crude oil copyright 2010 john wiley sons ltd

imperfect competition and the effects of energy price increases on economic activity the authors show that modifying the standard neoclassical growth model by assuming that competition is imperfect makes it easier to explain the size of the declines in output and real wages that follow increases in the price of oil plausibly parameterized models of this type are able to mimic the response of output and real wages in the united states the responses are particularly consistent with a model of implicit collusion where markups depend positively on the ratio of the expected present value of future profits to the current level of output copyright 1996 by ohio state university press

sectoral shifts and cyclical unemployment a substantial fraction of cyclical unemployment is better characterized as fluctuations of the frictional or natural rate than as deviations from some relatively stable natural rate shifts of employment demand between sectors of the economy necessitate continuous labor reallocation since it takes time for workers to find new jobs some unemployment is unavoidable this paper presents evidence that most of the unemployment fluctuations of the seventies unlike those in the sixties were induced by unusual structural shifts within the u s economy simple time series models of layoffs and unemployment are constructed that include a measure of structural shifts within the labor market these models are estimated and a derived natural rate series is constructed

money a market microstructure approach the current discussion about the future of the financial system draws heavily on a set of theories known as the new monetary economics the new monetary economics predicts that deregulation and financial innovation will lead to a moneyless world this paper uses a market microstructure approach to show that a common medium of exchange that serves as unit of account will remain a necessary instrument to reduce transaction costs this finding is supported by empirical evidence from foreign exchange markets

can we improve the structure of financial systems 1993 the main theme of this paper is that several of the characteristics of our present western monetary and banking systems have been crucially dependent on the particular temporal process of historical development and are not an essential feature of more fundamental preferences or technological conditions they exist in part because we take them for granted it is the purpose of this paper to examine what might change in both theory and practice if some of these inessential characteristics were to be changed

interest on reserves abstract in a general equilibrium setting we study versions of the proposal to pay interest on reserves at the market rate we argue that the proposal makes the demand for total reserves indeterminate whether interest is paid on total reserves or on required reserves only one consequence is that tax financing of the proposal gives rise to a continuum of equilibria equilibria which differ in real returns and consumption allocations another consequence is that financing through earnings on the central bank s portfolio either gives rise to an equilibrium with a zero nominal interest rate or to no equilibrium

nonconvex costs and the behavior of inventories this paper explores one possible explanation for the apparent excess volatility of production relative to sales nonconvexities in the technology facing firms it is shown that if firms operate in a region of declining marginal costs then small shifts in demand can cause production to jump substantially estimates for six production to stock industries as well as the automobile industry suggest that all these industries behave as if they were operating in the region of nonconvex costs the results have important implications not only for inventory investment but also for the cyclical behavior of productivity and prices

how many stocks make a diversified portfolio we show that a well diversified portfolio of randomly chosen stocks must include at least 30 stocks for a borrowing investor and 40 stocks for a lending investor this contradicts the widely accepted notion that the benefits of diversification are virtually exhausted when a portfolio contains approximately 10 stocks we also contrast our result with the levels of diversification found in studies of individuals portfolios

gasoline prices transport costs and the u s business cycles abstract the effects of gasoline prices on the u s business cycles are investigated in order to distinguish between gasoline supply and gasoline demand shocks the price of gasoline is endogenously determined through a transportation sector that uses gasoline as an input of production the model is estimated for the u s economy using five macroeconomic time series including data on transport costs and gasoline prices the results show that although standard shocks in the literature e g technology shocks monetary policy shocks have significant effects on the u s business cycles in the long run gasoline supply and demand shocks play an important role in the short run

commodity and equity markets some stylized facts from a copula approach abstract in this paper we propose to identify the dependence structure that exists between returns on equity and commodity futures and its development over the past 20 years the key point is that we do not impose any dependence structure but let the data select it to do so we model the dependence between commodity metal agriculture and energy and stock markets using a flexible approach that allows us to investigate whether the co movement is i symmetrical and frequent ii a symmetrical and mostly present during extreme events and iii asymmetrical and mostly present during extreme events we also allow for this dependence to be time varying from january 1990 to february 2012 our analysis uncovers three major stylised facts first we find that the dependence between commodity and stock markets is time varying symmetrical and occurs most of the time as opposed to mostly during extreme events second not allowing for time varying parameters in the dependence distribution generates a bias towards an evidence of tail dependence similarly considering only tail dependence may lead to false evidence of asymmetry third a growing co movement between industrial metals and equity markets is identified as early as 2003 this co movement spreads to all commodity classes and becomes unambiguously stronger with the global financial crisis after fall 2008

historical energy price shocks and their changing effects on the economy abstract the purpose of this paper is to identify the changes in the impact of energy shocks on economic activity with an interest in assessing if an economy s vulnerability and resilience to shocks improved with economic development using data on the united kingdom over the last three hundred years the paper identifies supply aggregate demand and residual shocks to energy prices and estimates their changing influence on energy prices and gdp the results suggest that the impacts of supply shocks rose with its increasing dependence on coal and declined with its partial transition to oil however the transition from exporting coal to importing oil increased the negative impacts of demand shocks more generally the results indicate that improvements in vulnerability and resilience to shocks did not progress systematically as the economy developed instead the changes in impacts depended greatly on the circumstances related to the demand for and supply of energy sources if these experiences are transferable to future markets a transition to a diversified mix of renewable energy is likely to reduce vulnerability and increase resilience to energy price shocks

are reserve requirements relevant for economic stabilization abstract the level of the required reserve ratio and the payment of interest on required reserves are irrelevant for economic stability 1 when the central bank appropriately adjusts its interest elasticity of supply of reserves or currency to offset changes in the required reserve ratio or in the interest rate paid on required reserves or 2 when economic agents form their price level expectations rationally conditional on the current interest rate

the effects of oil price shocks on job reallocation we investigate the effect of oil price innovations on u s manufacturing job flows using a simultaneous equation model that nests symmetric and asymmetric responses we find no evidence of asymmetry in the response of job flows to positive and negative oil price innovations we then inquire whether firms when facing positive shocks shed jobs faster than they create jobs we show that positive innovations lead to a decline in net employment and an increase in job reallocation possibly due to search and matching issues yet the latter effect becomes statistically insignificant when we control for data mining we demonstrate that the cumulative one year effect of oil price shocks on job creation and destruction was smaller during the great moderation but it was larger for gross job reallocation these variations were caused by a change in the transmission channel and not by smaller oil price shocks

inflation output and money this paper uses money demand theory and a rational expectations version of the quantity theory of money to study inflation in the united states during the post korean war period the major results are as follows 1 the theory and tests explain the phenomenon of stagflation that is the negative relation between inflation and real activity observed during the post 1953 period the analysis calls into question the many variants of the phillips curve which presume that inflation real activity relations are positive 2 consistent with the models of patinkin 1961 and fama 1980 monthly quarterly and annual data indicate that the base currency plus reserves held against deposits is the relevant monetary variable in the inflation process and that demand deposits are irrelevant the direct policy implication is that the base is the key monetary variable in the control of inflation 3 the most convincing evidence for the simple quantity theory view of inflation proposed here comes from the comparison of the conditional exmoney demand theory and the quantity theory of money are used to study the inflation process as predicted by the model monthly quarterly and annual data indicate that inflation is positively related to money growth rates and negatively related to growth rates of real activity the theoretical and empirical origins of stagflation are explained and changes in monetary arrangements to simplify the control of inflation are prescribed

the impact of oil prices on gdp in european countries an empirical investigation based on asymmetric cointegration this paper investigates the existence of a long term relationship between oil prices and gdp in 12 european countries to account for the fact that economic activity responds asymmetrically to oil price shocks we propose an approach based on asymmetric cointegration our results show that while standard cointegration is rejected there is evidence for asymmetric cointegration between oil prices and gdp in the majority of the considered european countries

heterogeneity and unemployment dynamics many previous articles have studied the contribution of inflows and outflows to the cyclical variation in unemployment but ignored the critical role of unobserved heterogeneity across workers thi

oil price uncertainty in canada bernanke bernanke ben s irreversibility uncertainty and cyclical investment quarterly journal of economics 98 1983 85 106 shows how uncertainty about energy prices may induce optimizing firms to postpone investment decisions thereby leading to a decline in aggregate output elder and serletis elder john and serletis apostolos oil price uncertainty http ssrn com abstract 908675 2009 find empirical evidence that uncertainty about oil prices has tended to depress investment in the united states in this paper we assess the robustness of these results by investigating the effects of oil price uncertainty in canada our results are remarkably similar to existing results for the united states providing additional evidence that uncertainty about oil prices may provide another explanation for why the sharp oil price declines of 1985 failed to produce rapid output growth impulse response analysis suggests that uncertainty about oil prices may tend to reinforce the negative response of output to positive oil shocks

where do jobs go when oil prices drop abstract in this paper we estimate a factor augmented vector autoregressive favar model to investigate the effect of oil price shocks on total private job flows as well as on industry level job creation and destruction following an unexpected oil price drop in the first year we find that in oil and gas extraction and support activities for mining exhibit a reduction in job creation and an increase in job destruction instead industries in construction manufacturing and services exhibit an increase in the net employment change an unexpected decline in the real oil price slows down the pace of gross job reallocation we demonstrate that the increase decrease in private job destruction creation observed during the first year is primarily driven by the response of closing expanding firms in services and manufacturing

inflation real returns and capital investment we find evidence for the hypothesis of mundell 1963 and tobin 1965 that the expected real return component of interest rates is negatively related to the expected inflation component in the mundell tobin model the variation in expected real returns is caused by the variation in expected inflation our evidence suggests however that the variation in expected real returns is more fundamentally an outcome of the capital expenditures process equilibrium expected real returns vary directly with capital expenditures in order to induce equilibrium allocations of resources between consumption and investment this positive relation between expected real returns and real activity which comes out of the real sector combines with a negative relation between expected inflation and real activity which is traced to the monetary sector thus inducing the negative relation between expected inflation and expected real returns predicted by mundell and tobin but explained in terms of a model much different from theirs

dynamic spillovers of oil price shocks and economic policy uncertainty this study examines the dynamic relationship between changes in oil prices and the economic policy uncertainty index for a sample of both net oil exporting and net oil importing countries over the period 1997 01 2013 06 to achieve that an extension of the diebold and yilmaz 2009 2012 dynamic spillover index based on structural decomposition is employed the results reveal that economic policy uncertainty oil price shocks responds negatively to aggregate demand oil price shocks economic policy uncertainty shocks furthermore during the great recession of 2007 2009 total spillovers increase considerably reaching unprecedented heights moreover in net terms economic policy uncertainty becomes the dominant transmitter of shocks between 1997 and 2009 while in the post 2009 period there is a significant role for supply side and oil specific demand shocks as net transmitters of spillover effects these results are important for policy makers as well as investors interested in the oil market

a neoclassical model of unemployment and the business cycle this paper investigates a general equilibrium model of unemployment and the business cycle in which specialization of labor plays a key role a rational expectations equilibrium with fully flexible wages and prices can exhibit unemployment in which the marginal product of employed workers exceeds the reservation wage of those who are without jobs workers are unemployed either because they are in the process of relocating for a better job or because they are waiting for conditions in the depressed sector to improve moreover seemingly small disruptions in the supplies of primary commodities such as energy could be the source of fluctuations in aggregate employment and can exert surprisingly large effects on real output

oil and the macroeconomy since the 1970s economists have long been intrigued by empirical evidence that suggests that oil price shocks may be closely related to macroeconomic performance this interest dates back to the 1970s the 1970s were a period of growing dependence on imported oil unprecedented disruptions in the global oil market and poor macroeconomic performance in the united states thus it was natural to suspect a causal relationship from oil prices to u s macroeconomic aggregates since then a large body of work has accumulated that purports to establish this link on theoretical grounds and to provide empirical evidence in its support we do not attempt a comprehensive survey of this literature but rather provide an idiosyncratic synthesis of what we view as the key issues in this debate and the insights gained over the last 30 years the timing seems right for such an account although the experience of the 1970s continues to play an important role in discussions of the link between oil and the macroeconomy there have been a number of new oil price shocks since the 1970s notably the 1986 collapse of oil prices and the 2000 boom in oil prices as well as the oil price increases associated with the 1990 1991 gulf war and the 2003 iraq war given this richer case history we are arguably in a better position than two decades ago to distinguish the idiosyncratic features of each oil crisis from the systematic effects increases in oil prices have been held responsible for recessions periods of excessive inflation reduced productivity and lower economic growth in this paper we review the arguments supporting such views first we highlight some of the conceptual difficulties in assigning a central role to oil price shocks in explaining

what happened to the oil price macroeconomy relationship abstract strong evidence is found that oil prices no longer granger cause many u s macroeconomic indicator variables in data after 1973 a number of potential explanations are explored that sample stability issues are responsible that oil prices are now endogenous and that linear and symmetric specifications misrepresent the form of the oil price interaction none of these hypotheses are supported by the data the opec price increases do appear to have had significant impacts while the effects of the price declines of the 1980s are smaller and harder to characterize these results have potentially important implications for the large body of research which utilizes oil prices as an instrumental or explanatory variable

production smoothing evidence from physical product data we reconsider the paradox that the variance of production often exceeds the variance of shipments a result that casts doubt on the production smoothing model of inventory behavior most studies of production smoothing have analyzed two digit sic dollar value data from commerce department surveys in contrast this paper examines disaggregated physical product data and finds that production is smoother than shipments in about two thirds of the 38 industry or product groupings considered however doubts about the model persist most notably euler equation estimates of the model s cost parameters are usually imprecise and often do not have the signs postulated by production smoothing models

how sensitive are consumer expenditures to retail energy prices abstract there is growing evidence that the primary effect of energy price shocks on the u s economy involves a reduction in consumer spending we quantify the direct effect on real consumption of unanticipated changes in discretionary income shifts in precautionary savings and changes in the operating cost of energy using durables the possibility of asymmetries in the response of real consumption to energy price shocks is also considered we demonstrate that linear models are consistent with the symmetric behavior of real consumption in 1979 when energy prices increased sharply and in 1986 when they fell sharply it is shown that historically energy price shocks have been an important factor in explaining u s real consumption growth but by no means the dominant factor

the sources of fluctuations in aggregate inventories and gnp a simple real linear quadratic inventory model is used to determine how cost and demand shocks interacted to cause fluctuations in aggregate inventories and gnp in the united states 1947 1986 cost shocks appear to be the predominant source of fluctuations in inventories and are largely though not exclusively responsible for the fact that gnp is more variable than final sales cost and demand shocks are of roughly equal importance for gnp these estimates however are imprecise with different but plausible values for a certain target inventory sales ratio cost shocks are less important than demand shocks for gnp fluctuations

monetary policy and bank regulations in an economy with financial innovations this is a study of financial innovations and moves towards the cashless society in a general equilibrium cash in advance model it is assumed that a subset of goods cash goods and check goods

household portfolio diversification a case for rank dependent preferences the proliferation of novel preference theories in financial economics is hampered by a lack of non experimental evidence and by the theories additional complexity which has not been shown to be critical in applications in this article i present arguments in support of preferences with rank dependency using the survey of consumer finances data i document two widespread patterns inconsistent with expected utility i many households simultaneously invest in well deversified funds and in poorly diversified portfolios of stocks and ii some households with substantial savings do not invest anything in equities i show that portfolio choice models with rank dependent preferences plausibly parameterized and under fully rational assumptions are quantitatively consistent with the observed diversification these results call for further efforts to integrate the models of rank dependent preferences in portfolio theory and asset pricing the decision theoretic literature has long acknowledged the shortcomings of the expected utility theory of von neumann and morgenstern 1944 several generalizations of the theory are inspired by the experimental evidence and aimed at improving its descriptive accuracy however there are few applications of new models of preferences in finance and expected utility continues to dominate the field 1 two principal hurdles slow the proliferation of novel preferences in financial economics first the lack of empirical non experimental or field data confirming that the behavior motivating non expected utilities is widespread outside the laboratory settings second the additional and often significant complexity of the alternative preferences which has not been shown to be critical in applications where the models based on expected utility fall short of reasonable predictions this article presents empirical and theoretical this paper was previously circulated under the title household portfolio diversification the paper has benefited from the comments of shlomo benartzi luca benzoni markus brunnermeier john dickhaut maria perozek raj singh hersh shefrin and workshop participants at minnesota finance bag lunch 2003 wharton conference household financial decision making and portfolio choice and 2003 summer meetings of econometric society i would like to thank cam harvey the editor and an anonymous referee for many helpful comments and suggestions a special thanks to jack kareken for comments and editorial help on an earlier draft i am grateful to donna zerwitz for editorial assistance the views expressed herein are those of the author and not necessarily of the federal reserve bank of minneapolis or the federal reserve system all errors and omissions are the sole responsibility of the author address correspondence to valery polkovnichenko finance 3 122 csom 319 19 th

exogenous oil supply shocks how big are they and how much do they matter for the u s economy abstract the paper proposes a new measure of exogenous oil supply shocks the timing the magnitude and the sign of this measure may differ greatly from current state of the art estimates it is shown that only a small fraction of the observed oil price increases during oil crisis periods can be attributed to exogenous oil production disruptions exogenous oil supply shocks cause a sharp drop of u s real gdp growth after five quarters rather than an immediate and sustained reduction in economic growth and a spike in cpi inflation after three quarters overall exogenous oil supply shocks made remarkably little difference for the evolution of the u s economy since the 1970s although they did matter for some historical episodes

dependence structure and risk measure understanding the relationships among multivariate assets would help one greatly about how best to position one s investments and enhance one s financial risk protection we present a new method to model parametrically the dependence structure of stock index returns through a continuous distribution function which links an n dimensional density to its one dimensional margins the resulting multivariate model could be used in a wide range of financial applications focusing on risk management we show that a misspecification of the dependence structure introduces on average an error in value at risk estimates

oil prices and economic downturns the case of spain abstractwe address the macroeconomic effects of an oil price shock in spain we apply a vector autoregression model var analysis to quarterly data for the spanish economy since 1986 to elucidate the effects of variations in the oil price on the economy considering the three main causes of disruptions in the oil markets oil supply shocks oil demand shocks and oil specific precautionary demand shocks we conclude that the effects in spain strongly depend on the type of shock the consumer price index cpi has mainly been influenced by oil demand shocks output has only reacted to oil supply shocks and monetary policy has mainly reacted after precautionary shocks second round effects caused by the behaviour of nominal wages have not been found additionally we discuss two facts the ability of firms to increase markups in a context of rising demand and the procyclical role of monetary policy when faced with oil demand shocks

the economic effects of energy price shocks large fluctuations in energy prices have been a distinguishing characteristic of the u s economy since the 1970s turmoil in the middle east rising energy prices in the u s and evidence of global warming recently have reignited interest in the link between energy prices and economic performance this paper addresses a number of the key issues in this debate what are energy price shocks and where do they come from how responsive is energy demand to changes in energy prices how do consumers expenditure patterns evolve in response to energy price shocks how do energy price shocks affect u s real output inflation and stock prices why do energy price increases seem to cause recessions but energy price decreases do not seem to cause expansions why has there been a surge in the price of oil in recent years why has this new energy price shock not caused a recession so far have the effects of energy price shocks waned since the 1980s and if so why as the paper demonstrates it is critical to account for the endogeneity of energy prices and to differentiate between the effects of demand and supply shocks in energy markets when answering these questions

the balance sheet effects of oil market shocks an industry level analysis abstract the paper estimates the dynamic impact of structural oil market shocks on the balance sheet of us firms using industry level data covering manufacturing trade and mining sectors for manufacturing firms findings indicate that an unexpected disruption in oil supply that raises oil prices by 1 lowers firm profits by 1 3 on impact on the other hand profits rise by 0 39 in response to the same increase in the price of oil when it is driven by a positive movement in the global demand for oil and by 0 79 after an unexpected surge in speculative oil demand the positive balance sheet effect of speculative oil shocks on the manufacturing sector contrasts their negative effect on global economic activity an explanation follows from the industry level analysis which suggests that speculation in the oil market creates a ripple effect in downstream industries and raises inventory demand for petroleum and chemical products in contrast to its secondary role in explaining historical variations in the price of oil and profits in trade and mining sectors oil supply shocks are found to have been the dominant oil market innovations in driving fluctuations in manufacturing firms profits the analysis also finds a limited response of production costs to exogenous changes in the oil price disputing the classic notion that the cost share of oil in an industry determines its level of exposure to oil market shocks

energy price shocks and the macroeconomy the role of consumer durables so far the literature on dynamic stochastic general equilibrium models with energy price shocks uses energy on the production side only in these models energy shocks are responsible for only a negligible share of output fluctuations we study the robustness of this finding by explicitly modeling private consumption of energy at the household level in addition to energy use at the firm level to account for total energy use in the economy additionally we distinguish between investment in consumer durables and investment in capital goods the model economy is calibrated to match total energy use and durable goods consumption as observed in the u s data simulation results indicate that despite higher total energy use this economy has an even smaller proportion of output fluctuations attributable to energy price shocks productivity shocks continue to be the primary force behind business cycle fluctuations the driving force behind our results is that the household now has the flexibility to rebalance its investment portfolio specifically the energy price hike is absorbed by reducing durable goods investment more than investment in capital goods thereby cushioning the hit to future production at the expense of current consumption hence our model better matches the consumption volatility observed in the data jel classification e32 q43

oil and energy price volatility it is commonly believed that since the 1973 oil crisis oil and energy prices have been more volatile than other commodity prices this study examines monthly producer prices for thousands of products over the period january 1945 through august 2005 the results show that crude oil refined petroleum and natural gas prices are more volatile than prices for about 95 of products sold by domestic producers relative to crude commodities however crude oil prices are currently more volatile than about 65 of other products and oil price volatility first exceeded the median for crude commodities following the 1986 drop in oil prices

a crude shock explaining the short run impact of the 2014 16 oil price decline across exporters abstract the sharp long lasting decline in oil prices in 2014 16 tested the resilience of oil exporters we examine the degree to which economic fundamentals entering the oil price decline explain the impact on economic growth across oil exporting economies and derive policy implications as to what factors help to mitigate the negative effects we find that pre existing fundamentals account for about half of the cross country variation in the impact of the shock oil exporters that weathered the shock better tended to have a stronger fiscal position higher foreign currency liquidity buffers a more diversified export base a history of price stability and a more flexible exchange rate regime within this group of countries the impact of the shock is not found to be related to the size of oil exports or the share of oil in fiscal revenue or economic activity

financial intermediation and price level control abstract because currency and deposits are not perfect substitutes in all transactions there are simplified financial systems in which control of the supply of currency is sufficient to control the price level most important in a currency supply approach price level control does not imply control of financial intermediation thus price level goals never have to be weighed against the availability of credit to finance real activity

on the interpretation of cointegration in the linear quadratic inventory model abstract the traditional formulation of the linear quadratic inventory model with unit roots predicts cointegration between inventories and sales that formulation implies that marginal production costs and the marginal benefits of inventories are both tending to and the cointegrating coefficient reflects the optimal trade off between these competing factors this paper suggests a reformulation of the problem in which marginal production costs and marginal inventory benefits are both stationary and in which the cointegrating coefficient is the same as the value that characterizes the target inventory level in the cost function

volatility spillovers and cross hedging between gold oil and equities evidence from the gulf cooperation council countries the paper examines the return and volatility spillovers between crude oil gold and equities and investigates the usefulness of the two commodities in hedging equity portfolios using daily data from january 20043 to may 2016 for the gulf cooperation council countries a dcc garch model is used to estimate dynamic correlations and hedge ratios we find significant spillovers from oil to equities highlighting the heavy dependence of the local economies on oil moreover the spillovers of gold on the stock markets are insignificant suggesting that gold price fluctuations do not necessarily influence equity investment decisions in the opposite direction we find that equities do not exert significant influence on the two commodities which we attribute to the relatively small capitalisation of the exchanges our results reveal low dynamic correlations and hedge ratios with a few spikes during crises indicating that oil and gold are cheap hedges for stocks albeit not good ones while they could be considered as weak safe havens but at a considerable cost

the production smoothing model is alive and well abstract monthly data in physical units for seven industries are used to examine the production smoothing hypothesis the results strongly support this hypothesis significant effects of expected future sales on current production are found for four industries and the estimated decision equations for all seven industries imply production smoothing behavior the previous negative results appear to be due to the use of data biased against the hypothesis the shipments and inventory data of the department of commerce the paper also shows that sensible results can be obtained from estimating approximations to decision equations as opposed to estimating euler equations

automobile externalities and policies this paper discusses the nature and magnitude of externalities associated with automobile use including local and global pollution oil dependence traffic congestion and traffic accidents it then discusses current federal policies affecting these externalities including fuel taxes fuel economy and emissions standards and alternative fuel policies summarizing insofar as possible the welfare effects of those policies finally we discuss emerging pricing policies including congestion tolls and insurance reform and summarize the appropriate combination of policies to address automobile externalities

unemployment in regional labor markets using structural theories to understand local jobless rates in west virginia the author uses a range of structural labor market models to understand differing regional jobless rates in a state affected by pockets of structural unemployment four theories of regional structural unemployment are presented and their hypotheses are statistically evaluated using west virginia county panel data the author then presents case study evidence to compare these statistical results with the realities of the county labor markets both types of empirical evidence suggest that a segmented non market clearing model in which structural unemployment stems from queuing for above market clearing wages in both a high wage primary sector and a lower wage secondary sector can shed the most light on regional unemployment rates in west virginia

all their eggs in one basket portfolio diversification of us households abstract this paper uses data from the survey of consumer finances to assess how well mean variance efficiency describes the portfolio diversification of us households it does not seem to work well the median stockholder owns a single publicly traded stock often in the company where he works looking at a sample of high income households who accounted for one third of all publicly traded stock the median holding is only ten stocks indirect stock ownership through mutual funds defined contribution pension plans ira s and trust funds is shown to have little power in explaining this poor diversification

sectoral shifts labor market sorting and aggregate fluctuations a model of sectoral reallocation is constructed where intersectoral friction is not caused by search or mobility costs instead a sectoral disturbance has a negative effect on production possibilities because it reduces the value of previous sorting in the labor market in equilibrium a measure of sectoral dispersion is positively correlated with the unemployment rate an increase in the incidence of sectoral disturbances increases unemployment at cyclical peaks and at cyclical troughs copyright 1990 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the role of model uncertainty and learning in the u s postwar policy response to oil prices abstract this paper studies optimal monetary policy in a framework that explicitly accounts for policymakers uncertainty about the channels of transmission of oil prices into the economy more specifically using postwar us data i examine the evolution of the policy recommendations originating from an optimal linear regulator problem that encompasses model uncertainty and learning as proposed by cogley and sargent 2005b in this environment i find that one of the underlying models dominates the robust interest rate response to oil prices and i show that this result is due to the instability of this specification in the sample period under analysis

money and banking in a cash in advance economy this paper studies banking and financial innovations in a stochasti c general equilibrium model assuming the existence of two distinct types of goods cash goods which can only be purchased by cash and check goods which can also be purchased by checks drawn against interest bearing bank accounts the authors analyze the effects of changes in the payment s structure i e the share of check goods reserve requirements on banks and changes in the supply of reserves the authors find e g that an increased share of check goods and a decrease of the bank reserve ratio in general both lead to a decrease in the variance of the price level copyright 1988 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

oil shocks and aggregate macroeconomic behavior the role of monetary policy a recent paper by bernanke gertler and watson 1997 suggests that monetary policy could be used to eliminate any recessionary consequences of an oil price shock this paper challenges this conclusion on two grounds first we question whether the federal reserve actually has the power to implement such a policy for example we consider it unlikely that additional money creation would have succeeded in reducing the fed funds rate by 900 basis points relative to the values seen in 1974 second we point out that the size of the effect that bernanke gertler and watson attribute to oil shocks is substantially smaller than that reported by other researchers primarily due to their choice of a shorter lag length than that used by other researchers we offer evidence in favor of the longer lag length employed by previous research and show that under this specification even the aggressive federal reserve policies proposed would not have succeeded in averting a downturn