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

supply shocks and monetary policy revisited written almost a decade after the first attempts in 1974 to develop a theory of policy response to supply shocks this paper uses a simple algebraic framework to summarize the central issues posed by supply shocks for macroeconomic policy primary emphasis goes to the case for and against monetary accommodation on the nature and extent of wage indexation and on the distinction between permanent and transitory shocks given the difficult tradeoffs faced by monetary policy makers supply side alternatives may represent the best available policy options 20 references

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

dynamic cyclical comovements of oil prices with industrial production consumer prices unemployment and stock prices abstract this paper examines the empirical relationship between oil prices and several key macroeconomic variables in particular we investigate the cyclical comovements of crude oil prices with output consumer prices unemployment and stock prices the methodology involves the use of the hodrick prescott hodrick r j prescott e c 1980 post war us business cycles an empirical investigation working paper carnegie mellon university and baxter king baxter m king r g 1999 measuring business cycles approximate band pass filters for economic time series review of economics and statistics 81 575 593 filters as well as the recently developed full sample asymmetric christiano fitzgerald christiano l j fitzgerald t j 2003 the band pass filter international economic review 44 435 465 band pass filter contemporaneous and cross correlation estimates are made using the stationary cyclical components of the time series to make inference about the degree to which oil prices move with the cycle besides documenting a number of important cyclical relationships using three different time series filtering methods the results suggest that crude oil prices are procyclical and lag industrial production additionally we find that oil prices lead consumer prices

do increases in petroleum product prices put the incumbent party at risk in us presidential elections this article investigates the impact of petroleum product prices on recent united states presidential elections by modelling the probability of the incumbent presidential party losing a state under the united states electoral college system it had carried the previous presidential election the main finding is that the probability of the incumbent party losing a state previously carried increases with petroleum product prices but only in those states that have primarily energy consuming economies we also find that increases in the number of international conflicts increases in real state per capita income growth and increases in state per capita grants in aid all reduce the likelihood of losing previously carried states while higher taxation growth increases this likelihood

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

modeling oil price us stock nexus a varma bekk agarch approach abstract this study adds to the existing literature on oil price us stock nexus in three ways first it employs the varma agarch model developed by mcaleer et al 2009 within the context of bekk framework using west texas intermediate wti and brent as proxies for oil market and s p stocks as a proxy for us stock market secondly it modifies the model to include endogenously determined structural break using the general structure for analyzing breaks with unit roots in perron 2006 third it uses the adopted model to compute optimal portfolio weight and hedge ratios between oil price and us stocks using different sample data based on the break date on average our empirical evidence suggests a significant positive return spillover from us stock market to oil market and bi directional shock spillovers between the two markets in addition there is significant own asymmetric shock effect in both markets while volatility spillover from oil market to stock market became pronounced after the break which coincides with the period of global economic slowdown similarly the results of portfolio management differ across the sample data more importantly we find that ignoring structural break when it exists may exaggerate hedging effectiveness

the nairu in theory and practice airu stands for the nonaccelerating ine ation rate of unemployment it is beyond dispute that this acronym is an ugly addition to the english language there are however two issues that fail to command consensus among economists which we address in this essay the e rst issue is whether the concept of the nairu is a useful piece of business cycle theory we believe it is and we begin this paper by attempting to explain why in our view the nairu is approximately a synonym for the natural rate of unemployment this concept follows naturally from any theory that says that changes in monetary policy and aggregate demand more generally push ine ation and unemployment in opposite directions in the short run once this short run tradeoff is admitted there must be some level of unemployment consistent with stable ine ation the second issue is why the nairu changes over time and in particular why it fell in the second half of the 1990s this question is more dife cult and the answer is open to debate most likely various factors are at work including demographics and government policies yet one hypothesis stands out as particularly promising e uctuations in the nairu appear related to e uctuations in productivity in the 1970s the nairu rose when productivity growth slowed in the 1990s the nairu fell when productivity growth sped up developing and testing models that explain the links among ine ation unemployment and productivity remains a challenge for students of business cycle theory

the new econometrics of structural change dating breaks in u s labor productivity we have seen the emergence of three major innovations in the econometrics of structural change in the past fifteen years 1 tests for a structural break of unknown timing 2 estimation of the timing of a structural break and 3 tests to distinguish unit roots from broken time trends these three innovations have dramatically altered the face of applied time series econometrics in this paper we review these three innovations and illustrate their application through an empirical assessment of u s labor productivity in the manufacturing durables sector

does the source of oil price shocks matter for south african stock returns a structural var approach abstract in this paper we investigate the dynamic relationship between different oil price shocks and the south african stock market using a sign restriction structural var approach for the period 1973 01 to 2011 07 the results show that for an oil importing country like south africa stock returns only increase with oil prices when global economic activity improves in response to oil supply shocks and speculative demand shocks stock returns and the real price of oil move in opposite directions the analysis of the variance decomposition shows that the oil supply shock contributes more to the variability in real stock prices the main conclusion is that different oil price shocks affect stock returns differently and policy makers and investors should always consider the source of the shock before implementing a policy and making investment decisions

the effects of oil price shocks on output and inflation in china crude oil price shocks derive from many sources each of which may bring about different effects on macro economy variables and require completely different designs in macro economic policy thus distinguishing the sources of oil price fluctuations is crucial when evaluating these effects this paper establishes an open economy dynamic stochastic general equilibrium dsge model with two economies china and the rest of the world to assess the effects of oil price shocks the ces production function is extended by adding oil as an input based on the model the effects of four types of oil price fluctuations are evaluated the four types of oil price shocks are supply shocks driven by political events in opec countries other oil supply shocks aggregate shocks to the demand for industrial commodities and demand shocks that are specific to the crude oil market simulation results indicate the following oil supply shocks driven by political events mainly produce short term effects on china s output and inflation while the other three shocks produce relatively long term effects in addition demand shocks that are specific to the crude oil market contribute the most to the fluctuations in china s output and inflation

dynamic cyclical comovements between oil prices and us gdp a wavelet perspective abstract in this paper we use wavelet analysis to investigate the cyclical comovements between crude oil prices and us gdp taking into account the decline in the volatility of us gdp growth that has occurred since the mid 1980s our main findings suggest that before 1984 q1 the crude oil prices were leading the us gdp cycle by 3 quarters and granger cause us gdp in contrast after 1984 q1 the crude oil prices were lagging the us business cycle and a reverse causality is found to run from us gdp to oil prices the multiscale granger causality tests globally corroborate theses results

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 price shocks and stock markets in the u s and 13 european countries abstract oil price shocks have a statistically significant impact on real stock returns contemporaneously and or within the following month in the u s and 13 european countries over 1986 1 2005 12 norway as an oil exporter shows a statistically significantly positive response of real stock returns to an oil price increase the median result from variance decomposition analysis is that oil price shocks account for a statistically significant 6 of the volatility in real stock returns for many european countries but not for the u s increased volatility of oil prices significantly depresses real stock returns the contribution of oil price shocks to variability in real stock returns in the u s and most other countries is greater than that of interest rate an increase in real oil price is associated with a significant increase in the short term interest rate in the u s and eight out of 13 european countries within one or two months counter to findings for the u s and for norway there is little evidence of asymmetric effects on real stock returns of positive and negative oil price shocks for oil importing european countries

new keynesian economics and the phillips curve models with sticky prices are an important part of new keynesian economics the author shows that several of the new keynesian models imply a formulation that is similar to the expectations augmented phillips curve of milton friedman and edmund phelps he then presents new estimates of the new keynesian phillips curve the author uses two proxies for price expectations survey based measures and an econometric based measure originally developed by bennett mccallum 1976 overall the results are consistent with the model but the survey based results are more precise suggesting that the surveys may be better measures of actual expectations copyright 1995 by ohio state university press

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

a wavelet analysis of mean and volatility spillovers between oil and brics stock markets this paper investigates the spillover effects of volatility and shocks between oil prices and the brics stock markets using multivariate approach and wavelet analysis at different time horizons hence we combine a multivariate arma garch model and wavelet multiresolution analysis to study this phenomenon a bivariate arma 1 1 garch 1 1 cdcc student t model was joined with modwt filter to capture a broad range of possible spillover effects in mean and variances of level prices at various time horizons generally empirical results provide strong evidence of time varying volatility in all markets under study however our proposed approach shows that oil price and stock market prices are directly affected by their own news and volatilities and indirectly affected by the volatilities of other prices and wavelet scale the results show also that mean and volatility spillover effects was decomposed into many sub spillovers on different time scales according to heterogeneous investors and market participants the practical implications of this study are critical innovative and useful for the local and international investors and also for the portfolio managers they can utilize this study to formulate the optimal oil bricks stock portfolios as well as lead to more accurate predictions of volatility spillovers patterns also in developing their hedging strategies

an empirical analysis of the relationship between oil prices and the chinese macro economy using the quarterly data from the first quarter of 1996 to the fourth quarter of 2014 this paper studies the relationship between oil prices and the chinese macro economy we find output and interest rate respond significantly to oil price shocks further analysis reveals that the positive response of output to oil price shocks is attributed to the influences of oil price shocks on exports the oil price shocks have both longer and deeper effects on the exports of state owned enterprises than on those of foreign investment enterprises moreover the response of exports to oil price shocks is symmetric finally oil prices are found to be useful for forecasting the china s exports in the periods shorter than about two years

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

the employment and wage effects of oil price changes a sectoral analysis in this paper we use micro panel data to examine the effects of oil price changes on employment and real wages at the aggregate and industry levels we also measure differences in the employment and wage responses for workers differentiated on the basis of skill level we find that oil price increases result in a substantial decline in real wages for all workers but raise the relative wage of skilled workers the use of panel data econometric techniques to control for unobserved heterogeneity is essential to uncover this result which is completely hidden in ols estimates while the short run effect of an oil price increase on aggregate employment is negative the long run effect is in fact positive we find that changes in oil prices induce changes in employment shares and relative wages across industries however we find little evidence that oil price changes cause labor to consistently flow into those sectors with relative wage increases copyright 1996 by mit press

real business cycle models past present and future in this paper i review the contribution of real business cycles models to our understanding of economic fluctuations and discuss open issues in business cycle research this abstract was borrowed from another version of this item

the value of flexibility preservation remediation or development for ginostra we are concerned with land allocation andinvestment decisions when dealing withpartially degraded areas that might be 1 remediated and returned to a more natural state or 2 irreversibly developed this type ofproblem seems particularly relevant in europewhere the issue of wilderness conservation isof less concern than the remediation oflandscapes which have been altered by previouseconomic activities traditional expectedpresent value analysis will fail to capture thevalue of investments that might be undertakensequentially or when certain investments areirreversible we show how to determine withina discrete time stochastic model the optimaladaptive development strategy and how tocalculate the option value of flexibility thetheoretical model is then applied to ginostra a town on stromboli an island off the southerncoast of italy

the productivity slowdown the oil shocks and the real cycle f ive facts stand out about economic performance in the united states since world war ii the first is that for most of the postwar period the u s has had a slower rate of economic growth than the other major developed democracies except great britain and much lower rates of growth than germany japan and italy the gap between the growth of per capita income of the united states and comparable countries has however tended to diminish over time and the united states has lately grown at about the same rate as most other developed countries the second outstanding fact is that the united states has fallen far behind in many mass production industries in which it used to lead the world whereas it is ahead of other nations in many new and especially high technology industries in automobiles steel tires household appliances and earth moving and farm equipment for example u s production has fallen dramatically in relation to output in most comparable countries and the country has become a net importer of most such products by contrast in newer industries such as computers jet aircraft sophisticated weaponry and high technology in general the united states is often dominant both as producer and exporter the third outstanding fact is that most of the older heartland of american industry roughly the area north and east of an arc drawn from baltimore to st louis to milwaukee has declined dramatically in comparison with the south and the west this change in regional fortunes has been due in large part to migration motivated by differences in economic prospects from the declining to the advancing