different paths to free trade the gains from regionalism we compare free trade reached through expanding regional trading blocs to free trade accomplished by multilateral negotiation with sunk costs the outcomes are different trade in an imperfectly competitive good flows disproportionately more between the original members of a regional agreement even after free trade is reached they secure a higher welfare level from regionalism than from free trade achieved multilaterally nonmembers however reach a lower welfare level a surprising result is that world welfare during free trade is greater when it is achieved by the regional path we conclude with some empirical evidence from the european union that is consistent with the model

impacts of opec s political risk on the international crude oil prices an empirical analysis based on the svar models abstract the impacts of opec s political risk on the fluctuations of international crude oil prices have caused widespread concern and analyzing the impacts is of great significance to the investment decisions and risk aversion strategies in the crude oil markets therefore using the international country risk guide icrg index as a proxy for the countries political risk situation we empirically investigate the impacts of opec s political risk on the brent crude oil prices based on several structural vector autoregression svar models the main empirical results indicate that 1 the political risk of opec countries does have a significant and positive influence on brent crude oil prices in the sample period from january 1998 to september 2014 and the most significant positive influences appear in about one and a half year and last about a year 2 opec s integrated political risk contributes to 17 58 of the oil price fluctuations in the sample period which is only lesser than that of the oil demand shocks 34 64 3 compared with the political risk of opec countries in north africa and south america the political risk of opec countries in the middle east contributes most to the oil price fluctuations 4 among the eight components of the political risk in opec the internal conflicts contribute most to the oil price fluctuations in the sample period

the role of market expectations in commodity price dynamics evidence from oil data abstract this paper examines the contribution of market expectations to commodity price dynamics it proposes a dynamic competitive storage framework with an explicit expectations shock along with concurrent shocks to study the commodity price movements this allows for a refined analysis of the expectations effect on price and inventory and the estimation of the expectations applied to the world crude oil market it finds that the contribution of market expectations to the crude oil spot price movements is limited from 1987 to 2014

it only takes a few moments to hedge options abstract we propose a novel non structural method for hedging european options relying on two model independent results first under suitable regularity conditions an option price can be disentangled into a linear combination of risk neutral moments second there exists an explicit approximate functional form linking the risk neutral moments to the futures price of the underlying asset and the related variance swap contracts we show that s p 500 call prices are mainly explained by two factors that are related to level and volatility of the underlying index we empirically compare the performance of two strategies where the vega exposure is adjusted either by a direct position in a variance swap contract or indirectly through an at the money call while both strategies ensure effective immunization in periods of market turmoil taking direct exposure on variance swaps is not optimal during extended periods of subdued volatility

free trade agreements in the americas are the trade effects larger than anticipated this paper argues that the competitive liberalisation of national governments of the past several decades reflects national governments expectations of larger trade impacts from regional economic integration agreements eias than typical ex ante economic models have suggested moreover we show that previous typically cross section ex post empirical evaluations of the effects of eias on trade have seriously over or underestimated the effects partly due to ignoring the endogenous self selection bias of country pairs into eias accounting for this bias we find that economic integration agreements in the americas have had much larger impacts on trade over the period 1960 2000 than previously found and the ex post estimates are less fragile than those in earlier cross section analyses the results shed further light on understanding the causes and consequences of the growth of regionalism in the world

assessing the enlargement and deepening of the european union this paper estimates a theoreticallymotivated gravity model to examine the effect of the european union eu on trade and whet her the order of entry has affected the trade performance of member countries additionally we analyse the impact of the diffe rent phases of eu integration on trade the results show that both original countries and successive enlargements boost intra b loc trade moreover the results suggest that the deepening in the integration process has led to more trade creation among members finally only the latter ph ase of the european integration process the single currency has increased trade with non members

asymmetric effects of oil price uncertainty on corporate investment abstract using a comprehensive data set of a large panel of us firms over 1984 2017 we show that the negative effect of crude oil price return uncertainty on investments is asymmetric in particular we show that investment is more significantly reduced following the volatility of positive oil price changes than that of negative changes and this asymmetric effect is more pronounced in small firms in addition we find that the asymmetric effect is stronger in the crude oil and gas producing companies where the effect of the volatility of negative oil price changes is greater than that of positive oil price changes we also find that the impact of positive or negative oil price change uncertainty on investments substantially differs across different industries the results are quite robust to the way in which we measure the investment and oil price uncertainty and to alternative regression methods

the effects of oil supply and demand shocks on u s consumer sentiment this paper investigates how the university of michigan s index of consumer sentiment responds to oil price shocks while oil supply shocks play only a limited role the effect of aggregate demand shocks is positive for the first few months and negative thereafter a typical other oil demand shock has a significant negative impact for up to 2 years by studying the responses of individual survey questions we find that expectations of future inflation and a change in real household income as well as perceived vehicle and house buying conditions are the main transmission channels of oil supply and demand shocks

identification and estimation of money demand in most natural sciences physics chemistry biology theories are validated by controlled experiment however in other natural sciences astronomy meteorology and in most social sciences including economics the data are characteristically generated not by experiment but by measurement of uncontrolled systems in economics theories take the form of restrictions on the models assumed to generate the data and statistical methods replace experimental controls in testing these restrictions and here is the difficulty in economics particularly macroeconomics the theory used to derive tests ordinarily does not generate a complete specification of which variables are to be held constant when statistical tests are performed on the relation between the dependent variable and the independent variables of primary interest accordingly in such cases there will be a set of often very different candidate regression based tests each of which has equal status with the others since each is based on a different projection of the same underlying multivariate model except in the unlikely event that the explanatory variables are mutually orthogonal the conditional regression coefficients which generally form the basis for the test statistic will depend on the conditioning set we conclude from this that if a theory which does not generate a complete specification of the regression test is nonetheless to have testable implications these implications must be robust over the permissible alternative specifications if the restrictions indicated by the theory are satisfied in some projections but not in others that have an equal claim to represent implications of the theory one cannot conclude that the theory has been confirmed the fact that the observable implications of valid theories must obtain over a broad but usually incompletely specified set of regressions rather than for a single regression introduces a large and unavoidable element of imprecision into hypothesis testing in macroeconomics generally it appears to be appropriate to weaken the statistical criterion for rejecting theories consider for example the theory of money demand which will engage our attention in this paper the tobin baumol square root formula implies that the elasticity of money demand with respect to the interest rate is exactly one half but which interest rate should wealth be held constant inflation in view of such uncertainties it would be inappropriate to insist in a literal minded fashion on rejecting the tobin baumol model if in some regression the measured interest elasticity differed from one half by more than two standard deviations and only then obviously a more flexible approach is called for the practice has been to conclude that the statistical evidence is consistent with the tobin baumol model as long as the interest rate coefficient is negative if it is negative and significant or negative and insignificantly different from minus one half that would provide somewhat stronger confirmation but a positive coefficient particularly a significantly positive coefficient would be viewed as raising questions about the validity of the theory in macroeconomics generally as in the money demand application the typical response to specification uncertainty has been to regard a theory as supported if the signs of the estimated coefficients agree with those expected from theory and as disconfirmed otherwise there is no theoretical justification for this procedure but it seems to be a reasonable course to follow the point that economic theory ordinarily generates incompletely specified statistical university of california santa barbara we have received helpful comments from andrew abel robert clower michael darby robert engle stephen goldfeld david laidler edward leamer robert lucas frederic mishkin and edward prescott thomas hall provided able research assistance

estimating the effects of free trade agreements on international trade flows using matching econometrics abstract this paper provides the first cross section estimates of long run treatment effects of free trade agreements on members bilateral international trade flows using nonparametric matching econometrics our nonparametric cross section estimates of ex post long run treatment effects are much more stable across years and have more economically plausible values than corresponding ols cross section estimates from typical gravity equations we provide plausible estimates of the long run effects of membership in the original european economic community eec and the central american common market cacm between 1960 and 2000 and the estimates confirm anecdotal reports of these agreements effectiveness

are exports of china japan and korea diverted in the major regional trading blocs in recent years china japan and korea the three major economies in east asia have been gearing up their efforts to sign free trade agreements with many different regions and countries one of the main reasons for this is that they fear that with a regionalism movement rising in every corner of the world their exports are discriminated against and diverted in the trading blocs of other nations the main purpose of this paper is to investigate whether this is a real fear we utilise the gravity equation augmented with dummy variables for regional trading blocs in three different specifications one is the static standard gravity model to examine the effect of regional blocs on the level of exports from these three countries in 2003 the second is the fixed effects and random effects panel models for the period 1993 2003 and the third is the dynamic partial adjustment model to examine the effect of blocs on the changes in exports between 1993 and 2003 the results show that trade diversion is observed only for china s exports in eu efta and eaec but no diversion effect is observed for japan s and korea s exports in any of the major trading blocs on the other hand trade creation is observed for exports from china in asean for exports from japan in asean cacm caricom eaec eu and nafta and for exports from korea in asean cacm eaec and mercosur thus japan s and korea s fear of discrimination and trade diversion is ungrounded while china s fear is grounded only to a limited extent

influential factors in crude oil price forecasting abstract this paper identifies factors that are influential in forecasting crude oil prices we consider six categories of factors supply demand financial market commodities market speculative and geopolitical and test their significance in the context of estimating various forecasting models we find that the least absolute shrinkage and selection operator lasso regression method provides significant improvements in the forecasting accuracy of prices compared to alternative benchmarks relative to the no change and futures based models lasso forecasts at the 8 step ahead horizon yield significant reductions in mean squared prediction error mspe with mspe ratios of 0 873 and 0 898 respectively we also document substantial improvements in forecasting performance of the factor based model that employs only a subset of variables chosen by lasso finally the time varying nature of the relationship between factors and oil prices is used to explain recent movements in crude oil prices

does oil move equity prices a global view many studies indicate that oil price shocks have an adverse effect on real output and hence an adverse effect on corporate profits where oil is used as a key input the present study examines whether and to what extent the adverse effect of oil price shocks impacts stock market returns to this end we analyse 35 datastream global industry indices for the period from april 1983 to september 2005 our findings indicate that oil price rises have a negative impact on equity returns for all sectors except mining and oil and gas industries generally these results are consistent with economic theory and evidence provided by previous empirical studies little evidence of any asymmetry is detected in the oil price sensitivities in light of our findings we recommend that international portfolio investors consider hedging oil price risk

terms of trade and global efficiency effects of free trade agreements 1990 2002 this paper infers the terms of trade effects of free trade agreements ftas implemented in the 1990s we estimate large fta effects on bilateral trade volume in 2 digit manufacturing goods from 1990 2002 using panel data gravity methods to resolve two way causality the terms of trade changes implied by these volume effects are deduced for 40 countries plus a rest of the world aggregate using an endowments general equilibrium model some countries gain over 5 of real manufacturing income some lose less than 0 3 global efficiency of manufactures trade rises 0 9 based on a distance function measure of iceberg melting

forty years of oil price fluctuations why the price of oil may still surprise us it has been forty years since the oil crisis of 1973 74 this crisis has been one of the defining economic events of the 1970s and has shaped how many economists think about oil price shocks in recent years a large literature on the economic determinants of oil price fluctuations has emerged drawing on this literature we first provide an overview of the causes of all major oil price fluctuations between 1973 and 2014 we then discuss why oil price fluctuations remain difficult to predict despite economists improved understanding of oil markets unexpected oil price fluctuations are commonly referred to as oil price shocks we document that in practice consumers policymakers financial market participants and economists may have different oil price expectations and that what may be surprising to some need not be equally surprising to others

on the mean variance tradeoff in option replication with transactions costs this paper analyzes the tradeoff between cost and risk of discretely rebalanced option hedges in the presence of transactions costs i present closed form solutions for expected hedging error transactions costs and variance of the cash flow from a time based hedging strategy similar to that analyzed by leland 1985 furthermore i characterize the cost and risk of a move based hedging strategy without resorting to monte carlo simulations all results are sufficiently general to accommodate the use of a transactions costs adjusted hedging volatility and an asset rate of return that differs from the risk free rate of return

regional trade agreements and the pattern of trade a networks approach this paper uses a complex network approach for the analysis trade effects from regional trade agreements on world trade flows we use bilateral trade data to compute the network community structure for every year between 1970 and 2000 we compare this to null community structures that emerge from various models based on regional and geographical classifications the implementation of rta s and gravity models of trade our results show that rta formation appears to have a cyclical pattern on the world trade network community structure we document periods where bilateral trade flows and the structure of the world trade network are consistent with those predicted by formation of rtas these cycles occur in 1980 86 and 1990 96 at the same time we document periods in which the pattern in the world trade network is not explained by rta formation two periods 1986 90 and 1997 2000 show a pattern of bilateral trade flows that moves away from the prediction that results from assuming rta formation as the driving force in the determination of the world trade network structure factors contributing to the latter parts of the cycle during our sample period include formation of regional trade networks in east asia that account for a significant portion of world trade but are not formalised by rtas in force

option replication in discrete time with transaction costs option replication is discussed in a discrete time framework with transaction costs the model represents an extension of the cox ross rubinstein binomial option pricing model to cover the case of proportional transaction costs the method proceeds by constructing the appropriate replicating portfolio at each trading interval numerical values of these prices are presented for a range of parameter values the paper derives a simple black scholes type approximation for the option prices with transaction costs and demonstrates numerically that it is quite accurate for plausible parameter values

separability and the modelling of international economic integration most models of the allocation of imports over suppliers adopt a two stage separable procedure in which a total imports function is estimated prior to the function allocating imports over suppliers this procedure is tested for five countries imports of manufactures and found wanting in four of them a more general model is proposed and estimated it is used to estimate the effects of u k accession to the eec on her exports to these countries exports to the eec countries rose but those elsewhere fell overall accession is shown to have worsened the u k s trade balance and gross output of manufactures

the financialization of food commodity equity and cross commodity return co movements rose dramatically after the 2008 financial crisis this development took place following what has been dubbed the financialization of commodity markets

hub and spoke free trade areas theory and evidence from israel we study how the sequential formation of free trade areas affects trade flows between member countries in a three country three good model of comparative advantage if two countries have an fta and both sign a similar agreement with the third trade between the two decreases however if only one of them signs an additional fta a hub and spoke pattern arises and trade between the initial members increases israel s experience lends strong support to our model trade between israel and the eu subject to an fta since 1975 increased by an additional 29 after the introduction of the us israel fta in 1985 on etudie comment la formation sequentielle de zones de libre echange affecte les flux commerciaux entre les pays membres dans un modele d avantage comparatif avec trois pays et trois biens si deux pays ont un accord de libre echange et qu ils signent tous deux un accord similaire avec un tiers pays le commerce entre les deux pays originaux decroit cependant si seulement un des deux pays originaux signe un accord avec le troisieme un reseau en etoile emerge et le commerce entre les deux payx d origine s accroit l experience d israel donne un fort support au modele le commerce entre israel et l union europeenne sujet a un accord de libre echange depuis 1975 s est accru de 29 apres l introduction de l accord de libre echange entre israel et les etats unis en 1985

oil prices and global factor macroeconomic variables abstract this paper investigates the relationship between oil prices global industrial production prices central bank policy interest rate and monetary aggregate with a global factor augmented error correction model we confirm the following stylized relationships i at global level money industrial production and prices are cointegrated ii positive innovation in global oil price is connected with global interest rate tightening iii positive innovation in global money price level and industrial production is connected with an increase in oil prices iv positive innovations in global interest rate are associated with a decline in oil prices and v the u s euro area and china are the main drivers of global macroeconomic factors

nonparametric panel data model for crude oil and stock market prices in net oil importing countries abstract this paper introduces an innovative nonparametric panel data approach to model the long run relationship between the monthly oil price index and stock market price indices of ten large net oil importing countries namely the united states japan china south korea india germany france singapore italy and spain in the proposed model we allow the coefficient on the oil price index to be a time varying function which evolves over time in a way that is assumed to be unknown we also allow the common trend function to evolve over time as well as extending the model further to incorporate country specific trend functions we employ a data driven local linear method to estimate these time varying trend and coefficient functions the results show that despite being largely positive there are several downward trends reflecting the aftermath of the iraq war and the recent unprecedented drop in the oil price overall we find that the nonparametric panel data model better captures the way in which the underlying stock oil price relationship has evolved over time in comparison to the point estimates of the parametric counterpart moreover we find that stock market fundamentals play a significant role in determining the oil stock price relationship our findings have important implication for policymakers and financial speculators

exchange rates of oil exporting countries and global oil price shocks a nonlinear smooth transition approach this paper models logistic and exponential smooth transition adjustments of real exchange rates for six major oil exporting countries in response to different shocks affecting oil prices the logis

are regional trading arrangements trade creating an application of extreme bounds analysis in this study we use extreme bounds analysis to test the robustness of the hypothesis that regional trading arrangements rtas are trade creating extreme bounds analysis provides a more rigorous test of specification uncertainty than traditional econometric theory by incorporating prior information and using a systematic approach to testing the fragility of coefficient estimates the results show that the trade creation effect of most rtas is fragile using a least squares estimator where all weight is attached to the sampling distribution eight or more of the twelve rtas considered are found to be trade creating when the relative weight in the estimation is shifted from the sampling to the prior distribution the number of rtas that are trade creating falls to six at the 95 percent likelihood ellipsoid moreover when we specify that not all rtas are trade creating four rtas increase trade at the 95 percent likelihood ellipsoid at the extreme bounds when all weight is attached to the prior distribution none of the rtas are found to be trade creating as a result we conclude that the pervasive trade creation effect found in the literature reflects not the information content of the data but rather the unacknowledged beliefs of the researchers

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

what central bankers need to know about forecasting oil prices central banks routinely use short horizon forecasts of the quarterly price of oil in assessing the global and domestic economic outlook we address a number of econometric issues specific to the construction of quarterly oil price forecasts in the united states and abroad we show that quarterly forecasts of the real price of oil from suitably designed vector autoregressive models estimated on monthly data generate the most accurate real time forecasts overall among a wide range of methods including quarterly averages of forecasts based on monthly oil futures prices no change forecasts and forecasts based on regression models estimated on quarterly data

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

does drawing down the us strategic petroleum reserve help stabilize oil prices we study the effects of releases from the us strategic petroleum reserve spr within the context of fully specified models of the global oil market that explicitly allow for storage demand as well as unanticipated changes in the spr we show that historically spr policy interventions defined as sequences of exogenous spr shocks during selected periods have helped stabilize the price of oil their effect on the price of oil however has been modest for example the cumulative effect of the spr releases after the invasion of kuwait in 1990 was a reduction of 2 per barrel in the real price of oil after 7 months whereas emergency drawdowns tend to lower the real price of oil we find that exchanges tend to raise the real price of oil in the long run we also provide a detailed analysis of the benefits of the 2018 white house proposal to sell off half of the spr within the next decade we show that the expected fiscal benefits of this plan are somewhat higher than the revenue of 16 6 billion dollars projected by the white house

trade creation and diversion revisited accounting for model uncertainty and natural trading partner effects summary the effect of preferential trade agreements ptas on trade flows is subject to model uncertainty stemming from the diverse and even contradictory effects suggested by the theoretical pta literature the existing empirical literature has produced remarkably disparate results and the wide variety of empirical approaches reflects the uncertainty about the correct set of explanatory variables that ought to be included in the analysis to account for the model uncertainty that surrounds the validity of the competing pta theories we introduce bayesian model averaging bma to the pta literature statistical theory shows that bma successfully incorporates model uncertainty in linear regression analysis by minimizing the mean squared error and by generating predictive distributions with optimal predictive performance once model uncertainty is addressed as part of the empirical strategy we find strong evidence of trade creation trade diversion and open bloc effects our results are robust to a range of alternative empirical specifications proposed by the recent pta literature copyright 2010 john wiley sons ltd

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

one money one market the effect of common currencies on trade currency unions their dramatic effect on international trade a gravity model is used to assess the separate effects of exchange rate volatility and currency unions on international trade the panel data bilateral observations for five years during 1970 90 covering 186 countries includes 300 observations in which both countries use the same currency i find a large positive effect of a currency union on international trade and a small negative effect of exchange rate volatility even after controlling for a host of features including the endogenous nature of the exchange rate regime these effects statistically significant imply that two countries sharing the same currency trade three times as much as they would with different currencies currency unions like the european emu may thus lead to a large increase in international trade with all that that entails andrew rose

trade conflict and political integration explaining the heterogeneity of regional trade agreements many historians argue that the main goal of european trade integration was the preservation of peace this paper investigates whether this reasoning is relevant for the eu and other regional trade agreements rtas i provide empirical evidence that customs unions and common markets deep rtas do reduce the probability of war between members partial scope and free trade agreements shallow rtas however have no effect on war probabilities accordingly international insecurity has a differential impact on incentives to create rtas deep rtas are signed between countries that are involved in many interstate disputes and that have low trade costs with the rest of the world whereas the opposite is true for shallow rtas

time varying persistence in real oil prices and its determinant abstract we provide empirical evidence for pronounced time variation in the persistence of real oil prices in particular we find episodes of mild explosiveness next to periods with random walk and also mean reverting behavior we address the question whether dynamic persistence can be directly related to macro financial variables spot futures spreads spill over effects from commodities and global real economic activity alongside these variables we use a large data set of more than one hundred fifty potential determinants featuring for example further oil related variables production and inventories and key macroeconomic series for the g7 countries by using model averaging techniques we robustly account for the inherent model uncertainty when dealing with such many potential explanatory variables as it turns out the one and only significant measure to explain time varying oil price persistence is the index of global real economic activity by kilian 2009 other variables related to e g supply shocks or speculation are however insignificant in line with recent findings we argue that fundamentals rather than speculation were the drivers of the explosive oil price in the 2000s

forecasting oil prices high frequency financial data are indeed useful abstract the paper examines the importance of combining high frequency financial information along with the oil market fundamentals in order to gain incremental forecasting accuracy for oil prices inspired by french et al 1987 and bollerslev et al 1988 who maintain that future asset returns are also influenced by past volatility we use daily volatilities and returns from financial and commodity markets to generate real out of sample forecasts for the monthly oil futures prices our results convincingly show that although the oil market fundamentals are useful for long run forecasting horizons the combination of the latter with high frequency financial data significantly improve oil price forecasts by reducing the rmse of the no change forecast by approximately 68 results are even more impressive during the oil price collapse period of 2014 15 these findings suggest that we cannot ignore the information extracted from the financial markets when forecasting oil prices our results are both statistically and economically significant as suggested by several robustness tests

quantifying the speculative component in the real price of oil the role of global oil inventories abstract one of the central questions of policy interest in recent years has been how many dollars of the inflation adjusted price of oil must be attributed to speculative demand for oil stocks at each point in time we develop statistical tools that allow us to address this question and we use these tools to explore how the use of two alternative proxies for global crude oil inventories affects the empirical evidence for speculation notwithstanding some differences overall these inventory proxies yield similar results while there is evidence of speculative demand raising the price in mid 2008 by between 5 and 14 dollars depending on the inventory specification there is no evidence of speculative demand pressures between early 2003 and early 2008 as a result current policy efforts aimed at tightening the regulation of oil derivatives markets cannot be expected to lower the real price of oil in the physical market we also provide evidence that the libyan crisis in 2011 shifted expectations in oil markets resulting in a price increase of between 3 and 13 dollars depending on the inventory specification with regard to tensions with iran in 2012 the implied price premium ranges from 0 to 9 dollars

relationships between oil price shocks and stock market an empirical analysis from china this paper investigates the interactive relationships between oil price shocks and chinese stock market using multivariate vector auto regression oil price shocks do not show statistically significant impact on the real stock returns of most chinese stock market indices except for manufacturing index and some oil companies some important oil price shocks depress oil company stock prices increase in oil volatility may increase the speculations in mining index and petrochemicals index which raise their stock returns both the world oil price shocks and china oil price shocks can explain much more than interest rates for manufacturing index

which oil shocks really matter in equity markets abstract this paper examines the relationship between structural oil shocks and us equity markets the recent oil shock decomposition of ready 2018 is reconsidered and refined providing a clearer delineation between shocks to equity market discount rates and aggregate demand leading to an oil shock specification which attributes substantially more explanatory power to the latter in explaining equity market variation providing links with the literature dating back to kilian and park 2009 an explicit role is given to precautionary demand shocks using an independent measure constructed from oil futures data reducing the role of the supply shocks obtained as the final residual in the recursive identification scheme in an extended sample that allows an analysis of the oil equity market relationship since the global financial crisis the modified aggregate demand shocks have approximately twice as much explanatory power for stock return variation than the demand shocks of ready 2018 the importance of these shocks in driving oil price changes and equity market volatility has only increased since the financial crisis with the role of supply shocks diminishing once these demand effects are accounted for there is little relationship between precautionary demand shocks and equity returns in contrast to the existing literature

oil prices exchange rates and emerging stock markets abstract while two different streams of literature exist investigating 1 the relationship between oil prices and emerging market stock prices and 2 the relationship between oil prices and exchange rates relatively little is known about the dynamic relationship between oil prices exchange rates and emerging market stock prices this paper proposes and estimates a structural vector autoregression model to investigate the dynamic relationship between these variables impulse responses are calculated in two ways standard and the recently developed projection based methods the model supports stylized facts in particular positive shocks to oil prices tend to depress emerging market stock prices and us dollar exchange rates in the short run the model also captures stylized facts regarding movements in oil prices a positive oil production shock lowers oil prices while a positive shock to real economic activity increases oil prices there is also evidence that increases in emerging market stock prices increase oil prices

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

demand effects and speculation in oil markets theory and evidence abstract we present evidence showing the existence of stable cointegrating vectors connecting four important variables in the u s and global oil markets oil production stocks of crude oil the real price of oil and broad measures of income our data are monthly and go back to the 1930s split into sub samples which correspond to periods before and after the 1973 crisis we further show that the cointegrating vectors found in the data accord well with an extended commodity storage model which allows for demand growth dynamics and for supply regimes specifically inventories and price move in opposite directions when supply is flexible but the relationship reverses so that they comove when supply is inflexible

tractable hedging an implementation of robust hedging strategies abstract this paper analyzes tractable robust hedging strategies in diffusion type models including stochastic volatility models a robust hedging strategy avoids any losses as long as volatility stays within a given interval it does not depend on the exact specification of the volatility process and therefore mitigates problems caused by model misspecification a tractable hedging strategy is defined as the sum over black scholes strategies for a convex concave payoff the cheapest robust hedge is given by a bs hedge at the upper lower volatility bound thus it is tractable for all other payoffs one has to solve a black scholes barenblatt equation and the cheapest robust hedge is not tractable a tractable hedge can then be found by decomposing the payoff into a convex and a concave function each of which is hedged separately we first give the decomposition that minimizes the initial capital second we show that it may be even cheaper to hedge a dominating payoff and we show explicitly how to determine the optimal dominating payoff we illustrate our results by two examples

explanations for the 2014 oil price decline supply or demand abstract the brent price of crude oil declined from 112 in june 2014 to a low of 31 in january 2016 both nominal prices a cumulative decrease of more than 70 some attribute the decline to increased oil production due to the u s shale revolution this paper proposes a variety of diagnostics to assess the how consistent this explanation is with the data i find that the data are broadly inconsistent with this attribution of the decline to shale oil rather the data are more consistent with a demand side explanation of weakening global economic conditions and demand for commodities including but not limited to oil in summary there is no evidence that the u s shale revolution played a significant role in the decline in oil prices since 2014 rather the evidence suggests that weakening oil demand played a much stronger role in driving the 2014 decline in oil prices

the quantitative effects of tax foresight not all states are equal abstract this paper explores the effect of federal tax news on state economic activity we estimate a factor augmented vector autoregression favar model which allows us to consider the possibility that unobserved factors such as credit and fiscal conditions might be relevant for modeling the dynamic response of aggregate and state level economic activity we identify tax foresight as a shock to the implicit tax rate measured by the yield spread between the one year tax exempt municipal bond and the one year taxable treasury bond our results suggest that an increase in the implicit tax rate raises national output over much of the anticipation period in addition anticipated tax increases give rise to expansions in state personal income and employment we find that the variation in the responsiveness of economic activity across states is mostly explained by differences in industrial composition and income distribution as well as by some demographic characteristics such as median income and education finally using a proxy for exogenous changes in federal tax revenues we investigate the dynamics of state level personal income and employment our results point to considerable heterogeneity in the response across u s states moreover they reveal that the long run multiplier for an anticipated increase in tax revenues is about a tenth of the short run multiplier for an unanticipated increase in taxes

how is volatility in commodity markets linked to oil price shocks abstract this study investigates the effects of oil price shocks on volatility of agricultural and metal commodities we decompose an oil price shock to its underlying components including macroeconomics and oil specific shocks the applied method is the structural vector autoregressive svar model and the time span is from april 1983 to may 2014 the investigation is divided into two subsamples before and after may 2006 for agriculture taking into account the 2006 2008 food crisis and change in u s ethanol production policy and before and after january 2008 for metals considering the recent global financial crisis we find that based on impulse response functions the response of volatility of each commodity to an oil price shock differs significantly depending on the underlying cause of the shock for the both periods moreover according to variance decomposition the explanatory power of oil shocks becomes stronger after the crisis the different responses of commodities are described in detail by investigating market characteristics in each period

trade in services and regional trade agreements do negotiations on services have to be specific trade in services has been on a substantial positive trend since the last decades and the number of regional trade agreements rta in force has increased regularly overtime however negotiations on services remain hesitant even at the bilateral level to evaluate the impact of rtas on trade in services a general classi cation as balassa s classi cation is not exactly appropriate to go through the 211 rtas noti ed to the wto permits a data analysis and then to sort rtas according to the own level of liberalization in services of every agreement i estimate a gravity equation using panel data covering the period 1999 2007 adding time varying dummies country and time

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

how do oil producers respond to oil demand shocks abstract this paper analyzes the response of international oil producers to demand induced changes in the price of crude oil during 1975 2011 focusing on potential differences between opec and non opec countries the goal is to derive consistent estimates of the short run price elasticity of crude oil supply at the country level i find that oil producers hardly respond to demand shocks within the same month and that the corresponding impact price elasticities of supply are statistically indistinguishable from zero while there is little evidence of differences in the dynamic responses to a typical flow demand shock on average over the sample period opec members seem to curtail production in response to a speculative demand shock whereas non opec production expands significantly flow and speculative demand shocks account for a nontrivial fraction of the total variability in country level crude oil supply

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

recent drivers of the real oil price revisiting and extending kilian s 2009 findings abstract we replicate and update the results of kilian 2009 to include the period since the financial crisis we separate the drivers of the price of crude oil shocks into three components oil supply shocks aggregate demand shocks and oil market specific demand shocks we provide evidence that the run up of oil prices in 2008 was mostly driven by aggregate demand shocks and to a lesser extend by oil market specific demand shocks complementing similar analyses in baumeister and kilian 2016a and kilian 2017 our results confirm that the cumulative effect of aggregate demand disruptions on the price of crude oil started before 2007 furthermore aggregate demand shocks and oil market specific demand shocks rather than oil supply shocks have the most significant effects on u s output and prices the findings are robust to an alternative measure of global real economic activity

a generalized design for bilateral trade flow models abstract this paper suggests a full interaction effects design to analyze bilateral trade flows this is illustrated with an unbalanced panel of bilateral trade between the triad eu15 usa and japan economies and their 57 most important trading partners over the period 1986 1997 our full interaction model finds empirical support for the new trade theory and linder s hypothesis we show that the omission of one or more interaction effects can result in biased estimates and misleading inference

disentangling the determinants of real oil prices in this study we quantify the impacts of economic fundamentals and derivative market speculation on the real price of crude oil using a structural var with sign restriction we determine that oil demand from the us and china particularly the latter one plays a crucial role in oil price changes after the year 2000 the contribution of speculation does not exceed 10 of oil price variations in our sample period

does the volatility of commodity prices reflect macroeconomic uncertainty abstract while there exists numerous studies on the macroeconomic effects of oil and commodity shocks the literature is quite silent on the impact of macroeconomic uncertainty on oil and commodity prices and especially on their volatility this paper tackles this issue through the estimation of a structural threshold vector autoregressive tvar model on a sample of 19 commodity markets we aim at i assessing whether the effect of macroeconomic uncertainty shocks on commodity price returns depends on the degree of uncertainty and ii investigating the transfer from macroeconomic uncertainty to price uncertainty using a newly developed measure of commodity price uncertainty our findings show that both agricultural and industrial markets are highly sensitive to the variability and the level of macroeconomic uncertainty while the impact on precious metals is more parsimonious given their well identified safe haven role in time of economic turmoil in addition we find evidence that the recent 2007 09 recession has generated an unprecedented episode of high uncertainty in numerous commodity prices interestingly our analysis further reveals that volatility and uncertainty in prices can be disconnected this is especially true for the oil market as most important shocks in the 1990s and the beginning of the 2000s that lead to price volatility do not generate price uncertainty highlighting the relevance of our uncertainty measure in linking uncertainty to predictability rather than to volatility

oil shocks competition and corporate investment evidence from china abstract this paper aims to investigate the impact of three classical oil shocks on the chinese corporate investment by using firm level data moreover we assess the role of product market competition in the relationship between oil shocks and corporate investment our empirical results show that oil aggregate demand and specific demand shocks negatively affect corporate investment while oil supply shocks show a positive effect notably compared to the non energy related industry the corporate investment of energy related industry is more sensitive to these oil shocks furthermore we find high competitive pressure can mitigate the impact of oil specific demand shocks on the corporate investment of energy related industry but competition presents a limited effect on the relationship between other oil shocks and corporate investment

risk appetite and oil prices abstract we demonstrate that oil prices and their volatility are no longer determined solely by real economic shocks to supply of and demand for oil but are also driven by shocks originating in the economic uncertainty and risk appetite of investors that prevail in the equity market the contribution of the latter factor has become particularly remarkable since the mid 2000s to establish these results we dismantle the squared vix index determined in the s p 500 options market into the conditional variance in stock returns to proxy for economic uncertainty and the equity variance risk premium to proxy for risk appetite using threshold garch structural vector auto regression and causality models we provide evidence about the link between risk appetite oil price returns and volatility furthermore investors appetite for risk drives changes in the ovx which measures perceptions about future oil volatility but not vice versa our results provide a better understanding of the relationship between oil the vix and its two proposed components in particular we show that changes in the risk appetite of investors are an important determinant not only for the price of equities but also for that of the most important energy resource oil

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

bilateral trade flows the linder hypothesis and exchange risk bilateral trade flows are used to examine the linder hypothesis and the effect of exchange rate variability in a gra vity type trade model derived from an underlying demand and supply mo del a behavioral model is used to justify examining these issues joi ntly the model performs well empirically using a sample of seventeen countries for the period 1974 82 the authors find overwhelming supp ort for the linder hypothesis and this version of the gravity model moreover they find strong support for the hypothesis that increased exchange rate variability affects bilateral trade flows copyright 1987 by mit press

refining the workhorse oil market model the kilian and murphy journal of applied econometrics 2014 29 454 478 structural vector autoregressive model has become the workhorse model for the analysis of oil markets i explore various refinements and extensions of this model including the effects of 1 correcting an error in the measure of global real economic activity 2 explicitly incorporating narrative sign restrictions into the estimation 3 relaxing the upper bound on the impact price elasticity of oil supply 4 evaluating the implied posterior distribution of the structural models and 5 extending the sample i demonstrate that the substantive conclusions of kilian and murphy 2014 are largely unaffected by these changes

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

option pricing and replication with transactions costs transactions costs invalidate the black scholes arbitrage argument for option pricing since continuous revision implies infinite trading discrete revision using black scholes deltas generates errors which are correlated with the market and do not approach zero with more frequent revision when transactions costs are included this paper develops a modified option replicating strategy which depends on the size of transactions costs and the frequency of revision hedging errors are uncorrelated with the market and approach zero with more frequent revision the technique permits calculation of the transactions costs of option replication and provides bounds on option prices

modeling fluctuations in the global demand for commodities it is widely understood that the real price of globally traded commodities is determined by the forces of demand and supply one of the main determinants of the real price of commodities is shifts in the demand for commodities associated with unexpected fluctuations in global real economic activity

do regional trade agreements increase members agricultural trade the gravity model is used extensively to investigate the trade flow effects of regional trade agreements rtas a notable feature common to previous research is the use of aggregate trade data these studies typically report conflicting and even negative results of the effect of rtas on members trade using recent developments in the gravity equation suggested by baier and bergstrand 2007 and anderson and van wincoop 2003 this article demonstrates that rta effects on members trade depend fundamentally on whether the analysis focuses on agricultural or nonagricultural sectors on the particular agreement analyzed and on the length of the phase in period that characterizes almost all rtas copyright 2008 oxford university press

trade creation and trade diversion in the canada united states free trade agreement in this paper the changes in trade patterns introduced by the canada united states free trade agreement are examined variation in the extent of tariff liberalization under the agreement is used to identify the impact of tariff liberalization on the growth of trade both with member countries and non member countries data at the commodity level are used and the results indicate that the canada united states free trade agreement had substantial trade creation effects with little evidence of trade diversion jel classification f13 f14

forecasting the real prices of crude oil using forecast combinations over time varying parameter models abstract in this paper we forecast real prices of crude oil using real time forecast combinations over time varying parameter tvp models with single predictor we reveal the significant predictability at all horizons up to 24 months the mean squared predictive error reduction over the benchmark of no change forecast is as high as 17 and the directional accuracy as high as 0 645 a combination with tvp models is found to generate more accurate forecasts than the same combination with constant coefficient models because the forecast errors of individual tvp models are correlated at a lower degree we also evaluate the forecasting performance in the framework of density forecasting our results indicate that the benchmark model can be significantly outperformed by forecast combination at the horizons longer than 3 months

changes in the global oil market changes in the parameters of a recursively identified oil market model are examined through an iterative algorithm that tests for possible breaks in coefficients and variances the analysis detects breaks in the coefficients of the oil production and price equations together with volatility shifts in all three equations of the model coefficient changes imply an enhanced response of production to aggregate demand shocks after 1980 and that the price response to supply shocks is more persistent from the mid 1990s all variables evidence changes in the relative contributions of individual shocks to their forecast error variances with coefficient and volatility breaks in the first half of the 1990s being particularly important in this respect the results show that analysts of this market should eschew constant parameter models estimated over an extended period

do oil price increases cause higher food prices us retail food price increases in recent years may seem large in nominal terms but after adjusting for inflation have been quite modest even after the change in us biofuel policies in 2006 in contrast increases in the real prices of corn soybeans wheat and rice received by us farmers have been more substantial and can be linked in part to increases in the real price of oil that link however appears largely driven by common macroeconomic determinants of the prices of oil and of agricultural commodities rather than the pass through from higher oil prices we show that there is no evidence that corn ethanol mandates have created a tight link between oil and agricultural markets moreover increases in agricultural commodity prices have contributed little to us retail food price increases because of the small cost share of agricultural products in food prices in short there is no evidence that oil price shocks have been associated with more than a negligible increase in us retail food prices in recent years nor is there evidence for the prevailing wisdom that oil price driven increases in the cost of food processing packaging transportation and distribution have been responsible for higher retail food prices similar results hold for other industrialized countries there is reason however to expect food commodity prices to be more tightly linked to retail food prices in developing countries christiane baumeister and lutz kilian

general properties of option prices when the underlying price process is a one dimensional diffusion as well as in certain restricted stochastic volatility settings a contingent claim s delta is bounded by the infimum and supremum of its delta at maturity further if the claim s payoff is convex concave the claim s price is a convex concave function of the underlying asset s value however when volatility is less specialized or when the underlying process is discontinuous or non markovian a call s price can be a decreasing concave function of the underlying price over some range increasing with the passage of time and decreasing in the level of interest rates much of the financial options literature derives precise option prices when the underlying asset price process is completely specified since it is empirically difficult to ascertain what the true underlying process is another part of that literature is concerned with deriving general properties of option prices when the underlying price process is not fully specified but instead is assumed to belong to some general class of stochastic processes merton 1973 cox and ross 1976 jagannathan 1984 in particular in the absence of arbitrage opportunities and assuming that the risk neutralized stock price follows a proportional stochastic process a risk neutral return distribution independent of price merton 1973 and jagannathan 1984 show that a call option s price is an increasing convex function of the stock price cox and ross 1976

the direct and relative effects of preferential market access abstract the proliferation of preferential trade agreements has resulted in a complex system of preferences in which market access conditions are often discriminatory in this paper we investigate how market access conditions have evolved between 2000 and 2009 and how this has affected international trade our results show that the proliferation of preferential access has increased bilateral trade not only due to lower tariffs but also because preferential access often resulted in higher preferential margins vis a vis foreign competitors the results also indicate that the evolution of the system of preferences has been disadvantageous for countries that did not actively engage in forming new trade agreements

the 2014 oil bust causes and consequences abstract this article suggests that the 2014 oil price collapse was possibly triggered by the falling euro versus the us dollar specifically the usd eur exchange rate likely adjusted to the sudden economic growth outlook divergence between the us and the eu as evident by the relative short term interest rate spread measures and triggered a strong dollar trade which is negative for the crude oil prices thus in our view the 2014 oil price bust is another episode of oil price inefficiency similar to the 2008 oil bubble the key argument presented in this article is that as long as there are temporary economic growth divergences between the us and the eu the resulting exchange rate volatility is likely to create the pricing inefficiencies in crude oil which in fact are mean reverting as the economic growth divergences eventually dissipate

do structural oil market shocks affect stock prices abstract this paper investigates how explicit structural shocks that characterize the endogenous character of oil price changes affect stock market returns in a sample of eight countries australia canada france germany italy japan the united kingdom and the united states for each country the analysis proceeds in two steps first modifying the procedure of kilian kilian l forthcoming not all oil price shocks are alike disentangling demand and supply shocks in the crude oil market american economic review we employ a vector error correction or vector autoregressive model to decompose oil price changes into three components oil supply shocks global aggregate demand shocks and global oil demand shocks the last component relates to specific idiosyncratic features of the oil market such as changes in the precautionary demand concerning the uncertainty about the availability of future oil supplies second recovering the oil supply shocks global aggregate demand shocks and global oil demand shocks from the first analysis we then employ a vector autoregressive model to determine the effects of these structural shocks on the stock market returns in our sample of eight countries we find that international stock market returns do not respond in a large way to oil market shocks that is the significant effects that exist prove small in magnitude

transmission of shocks and contagion from u s to mena equity markets the role of oil and gas markets abstract using a multifactor model augmented with oil and gas returns this paper examines contagion from the us to mena equity markets and studies the role of energy price fluctuations in amplifying the dependence between the us and mena equity markets we provide empirical evidence of a strong contagion effect originating from the us to mena equity markets the regional oil and gas factors account for the bulk of the variance of the mena equity returns and our findings suggest that the oil and gas markets play an important role in strengthening the dependence between the mena and us markets during episodes of market turmoil we discuss the policymaking importance of our results and propose a strategy to curb the adverse effects of us return shocks on mena equity markets during episodes of stress

diversifying away the risk of war and cross border political crisis this paper investigates the behavior of crude oil prices government bonds and stock market indices around outbreaks of severe international crises and wars using a constant mean return event study we show that these events are associated with positive and significant abnormal returns on oil and bonds which means that these two asset classes can potentially shelter shareholders from plummeting equity values during international crises a formal safe haven analysis confirms this insight such price movements may reflect a reallocation of funds across asset classes in response to the events as well as shifts in the demand for oil due to precautionary speculative and military motives we also calculate the weights for optimal portfolios which could provide insurance against conflict risk

the macroeconomic effects of oil price shocks evidence from a statistical identification approach we analyze the dynamics in the global crude oil market based on a structural vector autoregressive model we identify the model by presuming that reduced form residuals can be traced back to structural shocks that are independently distributed over the cross equation dimension the resulting point estimates of the impulse response functions allow for a direct comparison with the outcomes of more conventional identification approaches our results are remarkably similar to the results regarding oil market dynamics in kilian and murphy 2012 and inoue and kilian 2013 even though they rely on statistical arguments instead of a set of theory based a priori restrictions based on the results from our statistical approach we investigate the cumulative contributions of different oil shocks on the rapid fall in oil prices at the end of 2008 and 2014 as well as the effects of different oil shocks on macroeconomic aggregates in the us the euro area and china