a conference on postcrisis banking this essay provides an introduction to the special issue we focus on four themes which are important for policymakers and researchers alike in view of the experiences of the global financial crisis of 2007 2009 and the ensuing sovereign debt crisis in the euro area the relevance of the banking sector for the real economy the future structure and regulation of the banking sector the efficacy of past and current regulatory reforms and the impact of crossborder banking on economic stability and financial development

too big to be efficient the impact of implicit subsidies on estimates of scale economies for banks we examine whether too big to fail tbtf factors affect estimates of scale economies for large banks from a standard model of bank production that does not control for any tbtf factors we find evidence of scale economies for our sample of large banks we then control for tbtf factors by using a measure of the implicit subsidy that emerges from a reduction in tbtf banks funding costs due to investor expectations of government support we do this in two ways first we estimate scale economies from an augmented model of bank production that employs a proxy for the counterfactual price of debt that banks would face in the absence of any tbtf funding cost advantage second we estimate scale economies from a model of bank production that is estimated only for a sample of banks considered unlikely to be tbtf after controlling for tbtf factors using either method we no longer find evidence of scale economies for our sample of large banks these results suggest that estimated scale economies for large banks are affected by tbtf factors

inefficient credit booms this paper studies the welfare properties of competitive equilibria in an economy with financial frictions hit by aggregate shocks in particular it shows that competitive financial contracts can result in excessive borrowing ex ante and excessive volatility ex post even though from a first best perspective the equilibrium always displays under borrowing from a second best point of view excessive borrowing can arise the inefficiency is due to the combination of limited commitment in financial contracts and the fact that asset prices are determined in a spot market this generates a pecuniary externality that is not internalized in private contracts the model provides a framework to evaluate preventive policies which can be used during a credit boom to reduce the expected costs of a financial crisis copyright 2008 wiley blackwell

economic analysis of coal price electricity price adjustment in china based on the cge model in recent years coal price has risen rapidly which has also brought a sharp increase in the expenditures of thermal power plants in china meantime the power production price and power retail price have not been adjusted accordingly and a large number of thermal power plants have incurred losses the power industry is a key industry in the national economy as such a thorough analysis and evaluation of the economic influence of the electricity price should be conducted before electricity price adjustment is carried out this paper analyses the influence of coal price adjustment on the electric power industry and the influence of electricity price adjustment on the macroeconomy in china based on computable general equilibrium models the conclusions are as follows 1 a coal price increase causes a rise in the cost of the electric power industry but the influence gradually descends with increase in coal price and 2 an electricity price increase has an adverse influence on the total output gross domestic product gdp and the consumer price index cpi electricity price increases have a contractionary effect on economic development and consequently electricity price policy making must consequently consider all factors to minimize their adverse influence

a cointegration analysis of petroleum futures prices abstract this paper presents evidence concerning the number of common stochastic trends in a system of three petroleum futures prices crude oil heating oil and unleaded gasoline using daily data from 3 december 1984 to 30 april 1993 johansen s maximum likelihood approach for estimating long run relations in multivariate vector autoregressive models is used the results indicate the presence of only one common trend

exploring the core factors and its dynamic effects on oil price an application on path analysis and bvar tvp model abstract as the uncertainty of oil price increases impacts of the influential factors on oil price vary over time it is of great importance to explore the core factors and its time varying influence on oil price in view of this based on the path analysis model this paper obtains the core factors builds an oil price system var model which uses demand supply price and inventory as endogenous variables and china s net imports as well as dollar index as exogenous variables then we set up a bvar tvp time varying parameter model to analyze dynamic impacts of core factors on oil price the results show that 1 oil prices became more sensitive to oil supply changes and the influence delays became shorter 2 the impact of oil inventories on oil prices with a time lag of two quarters but has a downward trend 3 the impact of oil consumption on oil prices with a time lag of two quarters and this effect is increasingly greater 4 the us dollar index is always the important factor of oil price and its control power increases gradually and the financial crisis occurred in 2008 further strengthens the influence of us dollar

are electricity prices affected by the us dollar to euro exchange rate the spanish case abstract the objective of this paper is to investigate the relationships between spanish electricity spot prices and the us dollar euro usd euro exchange rate during the period 2005 2007 taking into account the study of the association between dollar and oil prices in order to better understand the evolution of the former over time the first finding in this study is that spanish electricity spots prices the usd euro exchange rate and oil prices are cointegrated therefore there is a long run equilibrium relationship between the three variables short run relationships have been detected between oil prices and spanish electricity prices and usd euro exchange rate in the sense that spanish electricity prices and usd euro exchange rate are affected by oil prices in the short run there is a transmission of volatility between usd euro exchange rate and oil prices to spanish electricity prices so although spanish electricity prices are not affected in level by the movements of usd euro exchange rate they are in volatility in this kind of scenario the conclusions confirm that for countries so dependent on external causes as spain one possible solution for guarantying the energy security would be the promotion of the renewable energies therefore we cannot ignore the impact in the internal expenses of the cost of installation and generation of green energies so there must be a balance between the increase in renewables and the reasonable market price of the electricity

causal modeling and inference for electricity markets abstract how does dynamic price information flow among northern european electricity spot prices and prices of major electricity generation fuel sources we use time series models combined with new advances in causal inference to answer these questions applying our methods to weekly nordic and german electricity prices and oil gas and coal prices with german wind power and nordic water reservoir levels as exogenous variables we estimate a causal model for the price dynamics both for contemporaneous and lagged relationships in contemporaneous time nordic and german electricity prices are interlinked through gas prices in the long run electricity prices and british gas prices adjust themselves to establish the equilibrium price level since oil coal continental gas and eur usd are found to be weakly exogenous

testing for asymmetric pricing in the canadian retail gasoline market abstract this paper applies a threshold regression model to test for asymmetric pricing in the retail gasoline market in canada using weekly data for the period january 1990 to december 1996 we present results for 13 canadian cities for both premium and regular gasoline within the context of an error correction model we test for the presence of asymmetric price behaviour using average changes in crude prices as well as various lags for the change in crude as possible thresholds we are unable to find any evidence to support this view

effects of financial innovations on market volatility when beliefs are heterogeneous abstract consider a model with two logarithmic utility maximizer agents that observe aggregate consumption but disagree about its expected rate of change markets are incomplete we first show that volatility of the interest rate in an economy with additional information is higher in a complete markets economy with no additional information there are two differences in volatility with the previous the first one due to the increase in volatility of the wealth share of the individuals is always positive the second difference is the change in covariance between the components of the interest rate volatility and can be positive or negative

rockets and feathers the asymmetric speed of adjustment of uk retail gasoline prices to cost changes abstract the paper develops a quadratic quantity adjustment model to test the hypothesis put forward in the recent monopolies and mergers commission report that the speed of adjustment of uk retail gasoline prices to cost changes is more rapid when costs rise than when they fall and that the adjustment path is more concentrated around the mean value on the upswing using data from 1982 to 1989 evidence of faster and more concentrated responses to cost increases were found

managing expectations instruments vs targets should policymakers offer forward guidance in terms of a path for an instrument such as interest rates or a target for an outcome such as unemployment we study how the optimal approach depends on a departure from rational expectations people have a limited understanding of the behavior of others and of the general equilibrium ge effects of policy the bite of such bounded rationality on implementability and welfare is minimized by target based guidance if and only if ge feedbacks are strong enough this offers a rationale for why central banks should shine the spotlight on unemployment when faced with a prolonged liquidity trap a steep keynesian cross or a large financial accelerator

modeling and forecasting cointegrated relationships among heavy oil and product prices abstract in this paper we investigate heavy crude oil and product price dynamics we present a comparison among ten prices series of heavy crude oils and fourteen price series of petroleum products in two distinct areas europe and americas over the period 1994 2002 we provide a complete analysis of crude oil and product price dynamics using cointegration and error correction models ecm subsequently we use the ecm specification to predict crude oil prices over the horizon january 2002 june 2002 finally we compare the forecasting performance of ecm with a naive model in first differences which does not exploit any cointegrating relation

discussion of presbitero udell and zazzaro the paper by presbitero udell and zazzaro henceforth puz aims to investigate whether the financial crisis that in italy really hit after lehman brothers in september 2008 actually led to a credit crunch there and which types of firms suffered most puz start from the quarterly editions of a monthly survey of about 3 800 italian manufacturing firms by isae now istat to analyze credit access by 3 623 firms between 2008 q1 to 2009 q3 i e 23 140 firm quarter observations of which 12 734 came after lehman puz find suggestive evidence that there was a credit crunch in italy post lehman that firms in provinces with bank branches located further from their bank s headquarter i e with banks that are more functionally distant suffered relatively more and that in those provinces especially high quality firms were affected these findings are consistent with a home bias but not with a flight to quality interpretation this nice paper by puz is truly thought provoking as the home bias in banking that is documented is occurring within one country but before pointing out a possible broader avenue for further investigation i want to discuss a few limitations of this study most of which the authors are also aware of and candidly highlight and in this way also indicate more immediate directions for follow up research

belief disagreements and collateral constraints belief disagreements have been suggested as a major contributing factor to the recent subprime mortgage crisis this paper theoretically evaluates this hypothesis i assume that optimists have limited wealth and take on leverage so as to take positions in line with their beliefs to have a significant effect on asset prices they need to borrow from traders with pessimistic beliefs using loans collateralized by the asset itself since pessimists do not value the collateral as much as optimists do they are reluctant to lend which provides an endogenous constraint on optimists ability to borrow and to influence asset prices i demonstrate that the tightness of this constraint depends on the nature of belief disagreements optimism concerning the probability of downside states has no or little effect on asset prices because these types of optimism are disciplined by this constraint instead optimism concerning the relative probability of upside states could have significant effects on asset prices this asymmetric disciplining effect is robust to allowing for short selling because pessimists that borrow the asset face a similar endogenous constraint these results emphasize that what investors disagree about matters for asset prices to a greater extent than the level of disagreements when richer contracts are available relatively complex contracts that resemble some of the recent financial innovations in the mortgage market endogenously emerge to facilitate betting

banks liquidity and the cost of liquidity to corporations we consider the liquidity shock banks experienced following the collapse of the asset backed commercial paper abcp market in the fall of 2007 to investigate whether banks liquidity conditions affect their ability to provide liquidity to corporations we find that banks that borrowed more from the federal home loan bank system or the federal reserve s discount window following that liquidity shock passed a larger portion of their borrowing costs onto corporations seeking access to liquidity when compared to the precrisis period this increase is larger among banks with a bigger exposure to the abcp market credit lines that pose more liquidity risk to banks and borrowers that are likely dependent on the credit line provider our findings show that the crisis that affected the banking system had a negative effect not only on the price of credit to corporations but also on the price corporations pay to guarantee access to liquidity

bank bonuses and bail outs this paper shows that bonus contracts may arise endogenously as a response to agency problems within banks and analyzes how compensation schemes change in reaction to anticipated bailouts if there is a risk shifting problem bailout expectations lead to steeper bonus schemes and even more risk taking if there is an effort problem the compensation scheme becomes flatter and effort decreases if both types of agency problems are present a sufficiently large increase in bailout perceptions makes it optimal for a welfare maximizing regulator to impose caps on bank bonuses in contrast raising managers liability can be counterproductive

extrapolation and bubbles abstract we present an extrapolative model of bubbles in the model many investors form their demand for a risky asset by weighing two signals an average of the asset s past price changes and the asset s degree of overvaluation and waver over time in the relative weight they put on them the model predicts that good news about fundamentals can trigger large price bubbles that bubbles will be accompanied by high trading volume and that volume increases with past asset returns we present empirical evidence that bears on some of the model s distinctive predictions

does macro prudential regulation leak evidence from a uk policy experiment the regulation of bank capital as a means of smoothing the credit cycle is a central element of forthcoming macro prudential regimes internationally for such regulation to be effective in controlling the aggregate supply of credit it must be the case that i changes in capital requirements affect loan supply by regulated banks and ii unregulated substitute sources of credit are unable to offset changes in credit supply by affected banks this paper examines micro evidence lacking to date on both questions using a unique data set in the uk regulators have imposed time varying bank specific minimum capital requirements since basel i it is found that regulated banks uk owned banks and resident foreign subsidiaries reduce lending in response to tighter capital requirements but unregulated banks resident foreign branches increase lending in response to tighter capital requirements on a relevant reference group of regulated banks this leakage is substantial amounting to about one third of the initial impulse from the regulatory change

a welfare criterion for models with distorted beliefs this paper proposes a welfare criterion for economies in which agents have heterogeneously distorted beliefs instead of taking a stand on whose belief is correct our criterion asserts an allocation to be belief neutral ine cient if it is ine cient under any convex combination of agents beliefs while this criterion gives an incomplete ranking of social allocations it can identify negative sum speculation in a broad range of prominent models with distorted beliefs

leverage cycles and the anxious economy ing opportunities for emerging economies their access to international markets has turned out to be very volatile with frequent periods of market closures even worse as we will show emerging economies with sound fundamentals are the ones that issue less debt during these closures the goal of this paper is to present a theory of asset pricing that will shed light on the problems of emerging assets like emerging markets that are not yet mature enough to be attractive to the general public their marginal buyers are liquidity constrained investors with small wealth relative to the whole economy who are also marginal buyers of other risky assets we will use our theory to argue that the periodic problems faced by emerging asset classes are sometimes symptoms of what we call a global anxious economy rather than of their own fundamental weaknesses

news noise and fluctuations an empirical exploration a common view of the business cycle gives a central role to anticipations consumers and firms continuously receive information about the future which is sometimes news and sometimes just noise based on this information consumers and firms choose spending and because of nominal rigidities spending affects output in the short run if ex post the information turns out to be news the economy adjusts gradually to a new level of activity if it turns out to be just noise the economy returns to its initial state therefore the dynamics of news and noise generate both short run and long run changes in aggregate activity this view appears to capture many of the aspects often ascribed to fluctuations the role of animal spirits in affecting demand spirits coming here from a rational reaction to information about the future the role of demand in affecting output in the short run together with the notion that in the long run output follows a natural path determined by fundamentals in this paper we examine whether this view is consistent with the data we reach three main conclusions the first two methodological the third substantive structural vars typically cannot recover news and noise shocks the reason is straightforward if agents face a signal extraction problem and are unable to separate news from noise then the econometrician faced with either the same data as the agents or a subset of these data cannot do it either while structural estimation methods cannot recover the actual time series for news and noise shocks either they can recover underlying structural parameters and thus the relative role and dynamic effects of news and noise shocks estimation of both a simple model and then of a more elaborate dsge model suggest that agents indeed solve such a signal extraction problem and that noise shocks play an important role in determining short run dynamics recent efforts to estimate business cycle models in which expectations about the future play an important role include christiano et al 2010 and schmitt grohe and uribe 2012 those papers follow the approach of jaimovich and rebelo 2009 and model news as perfectly anticipated productivity changes that will occur at

retail price cycles and response asymmetry weekly retail gasoline prices in windsor ontario from 1989 to 1994 appear to respond faster to wholesale price increases than to decreases but exhibit a cyclic pattern inconsistent with a common explanation of response asymmetry i reconcile these observations through a model of price cycles prices on the downward portion of the cycle appear insensitive to costs compared with price increases supporting the theory that price decreases result from battles over market share this pattern resembles a faster response to cost increases than to decreases and the conclusion that asymmetry indicates a role for competition policy may be inappropriate jel classification l13 l71 cycles des prix de detail et reponse asymetrique les prix de detail hebdomadaires de la gazoline a windsor ont entre 1989 et 1994 semblent reagir plus vite aux accroissements qu aux chutes des prix de gros mais suivent un pattern cyclique qui ne semble pas consistant avec l explication traditionnelle en termes de reponse asymetrique l auteur reconcilie ces observations a l aide d un modele de cycle de prix les prix dans la portion descendante du cycle semblent insensibles aux variations de couts par comparaison avec les accroissements de prix ce qui supporte la theorie que les chutes de prix resultent de luttes pour les parts de marche le pattern ressemble a celui declenche par une reponse plus rapide aux augmentations qu aux chutes de couts et la conclusion qui voudrait qu on puisse attribuer le tout a l asymetrie des reponses et que donc une intervention de la politique de la concurrence s impose peut etre inappropriee

a risk centric model of demand recessions and speculation we provide a continuous time risk centric representation of the new keynesian model which we use to analyze the interactions between asset prices financial speculation and macro economic outcomes when output is determined by aggregate demand in principle interest rate policy is highly effective in dealing with shocks to asset valuations however in practice monetary policy faces a wide range of constraints if these constraints are severe a decline in risky asset valuations generates a demand recession this reduces earnings and generates a negative feedback loop between asset prices and aggregate demand in the recession phase average beliefs matter not only because they affect asset valuations but also because they determine the strength of the amplification mechanism in the ex ante boom phase belief disagreements or heterogeneous asset valuations matter because they induce investors to speculate this speculation exacerbates the crash by reducing high valuation investors wealth when the economy transitions to recession which depresses wealth weighted average beliefs macroprudential policy that restricts speculation in the boom can pareto improve welfare by increasing asset prices and aggregate demand in the recession

heterogeneous expectations and bond markets this paper presents a dynamic equilibrium model of bond markets in which two groups of agents hold heterogeneous expectations about future economic conditions the heterogeneous expectations cause agents to take on speculative positions against each other and therefore generate endogenous relative wealth fluctuation the relative wealth fluctuation amplifies asset price volatility and contributes to the time variation in bond premia our model shows that a modest amount of heterogeneous expectations can help explain several puzzling phenomena including the excessive volatility of bond yields the failure of the expectations hypothesis and the ability of a tent shaped linear combination of forward rates to predict bond returns the author 2009 published by oxford university press on behalf of the society for financial studies all rights reserved for permissions please email journals permissions oxfordjournals org oxford university press

prices rise faster than they fall output prices tend to respond faster to input increases than to decreases this tendency is found in more than two of every three markets examined it is found as frequently in producer goods markets as in consumer goods markets in both kinds of markets the asymmetric response to cost shocks is substantial and durable on average the immediate response to a positive cost shock is at least twice the response to a negative shock and that difference is sustained for at least five to eight months unlike past studies which documented similar asymmetries in selected markets gasoline agricultural products etc this one uses large samples of diverse products 77 consumer and 165 producer goods accordingly the results suggest a gap in an essential part of economic theory as a start on filling this gap the study finds no asymmetry in the resonse of an individual decision maker a supermarket chain to its costs but it finds above average asymmetry where a cost shock is filtered through a fragmented w

market structure marketing method and price instability data for metals sold on commodity exchanges and at prices set by producers are used to test the relationship between the organization of markets and the behavior of prices on the production side the question is whether prices are more stable in concentrated industries and on the sales side the question is whether markets where buyers are consumers have more stable prices than those with consumers and speculators the recent increase in metal price instability is explained by changes in the market structure and organization variables foremost is increased reliance on commodity exchanges declines in concentration are of less importance

market integration among electricity markets and their major fuel source markets dynamic price information flows among u s electricity wholesale spot prices and the prices of the major electricity generation fuel sources natural gas uranium coal and crude oil are studied multivariate time series methods applied to weekly price data show that in contemporaneous time peak electricity prices move natural gas prices which in turn influence crude oil in the long run price is discovered in the fuel sources market except uranium as these prices are weakly exogenous in a reduced rank regression representation of these energy prices

the integration of major fuel source markets in china evidence from panel cointegration tests abstract the paper tests for energy price co movement in china over the new regime as part of a strategy to test for the existence of a national energy market panel cointegration test statistics suggest that not all energy commodities are spatially homogenous in prices and the processes of energy price cointegration are different over time and over groups of fuels the statistics demonstrate china s gradual spatially partial and idiosyncratic energy reform process coal and electricity price series have co moved since 2003 while the national panel cointegration test statistics suggest that gasoline and diesel price series have co moved since 1997 regional panel tests also show that there are apparently differences in the emergence of energy price co movement this suggests that regional energy markets have emerged in china one of the important lessons of the research is that an energy market has to some extent already emerged in china and as a consequence energy prices are much less distorted than previously if correct this fact is of major global significance both in terms of future environmental effects and future trade and investment negotiations as china is seen internationally as a market driven economy

a macroeconomic model with a financial sector this paper studies a macroeconomic model in which financial experts borrow from less productive agents we pursue four sets of results i the economy is prone to instability and occasionally enters volatile episodes as volatility spikes agents precautionary motive increases depressing prices even further log linear approximations fail to capture these non linear effects that can cause economies to be significantly depressed for long periods of time ii endogenous risk during volatile episodes increases asset price correlations iii financial experts impose a negative externality on each other and on the labor sector by not maintaining adequate capital cushion and funding structure iv while risk sharing within the financial sector through securitization and derivatives contracts reduces many inefficiencies it can also amlify systemic risks

disaster risk and preference shifts in a new keynesian model in rbc models disaster risk shocks reproduce countercyclical risk premia but generate an increase in consumption along the recession and asset price fall through their effects on agents preferences gourio 2012 this paper offers a solution to this puzzle by developing a new keynesian model with such a small but time varying probability of disaster we show that price stickiness combined with an eis smaller than unity restores procyclical consumption and wages while preserving countercyclical risk premia in response to disaster risk shocks the mechanism then provides a rationale for discount factor first and second moment uncertainty shocks

managing credit booms and busts a pigouvian taxation approach we study a dynamic model in which the interaction between debt ac cumulation and asset prices magni es credit booms and busts we nd that borrowers do not internalize these feedback eects and therefore suf fer from excessively large booms and busts in both credit ows and asset prices we show that a pigouvian tax on borrowing may induce borrowers to internalize these externalities and increase welfare we calibrate the model by reference to i the us small and medium sized enterprise sector and ii the household sector and nd the optimal tax to be countercycli cal in both cases dropping to zero in busts and rising to approximately half a percentage point of the amount of debt outstanding during booms

the rate of return on everything 1870 2015 what is the aggregate real rate of return in the economy is it higher than the growth rate of the economy and if so by how much is there a tendency for returns to fall in the long run which particular assets have the highest long run returns we answer these questions on the basis of a new and comprehensive data set for all major asset classes including housing the annual data on total returns for equity housing bonds and bills cover 16 advanced economies from 1870 to 2015 and our new evidence reveals many new findings and puzzles

risk management in the oil industry can information on long run equilibrium prices be utilized abstract we analyze co movements between the prices of crude oil and major refined products during the period 1992 1998 specifically we explore the existence of long run equilibrium price relationships and whether deviations from estimated equilibrium can be utilized for predictions of short term price changes and for risk management the econometric evidence strongly supports the hypothesis that crude and product prices are co integrated past deviations from long term equilibrium are significant in an error correction specification of short term product price changes the results represent valuable information for hedging particularly in integrated oil companies for which price risk is related to margin variations

risk premia and the real effects of money this paper proposes a flexible price theory of the role of money in an economy with incomplete idiosyncratic risk sharing when the risk premium goes up money provides a safe store of value that prevents interest rates from falling reducing investment investment is too high during booms when risk is low and too low during slumps when risk is high monetary policy cannot correct this money is superneutral and ricardian equivalence holds the optimal allocation requires the friedman rule and a tax subsidy on capital the real effects of money survive even in the cashless limit

have oil and gas prices got separated abstract this paper applies vector error correction models that show that oil and natural gas prices decoupled around 2009 before 2009 us and uk gas prices had a long term equilibrium with crude prices to which gas prices always reverted after exogenous shocks both us and uk gas prices adjusted to the crude oil price individually and departure from the equilibrium gas price on one continent resulted in a similar departure on the other after an exogenous shock the adjustment between us and uk gas prices took approximately 20 weeks on average and the convergence was mediated mainly by crude oil with a necessary condition that arbitrage across the atlantic was possible after 2009 however the uk gas price has remained integrated with oil price but the us gas price decoupled from crude oil price and the european gas price as the atlantic arbitrage has halted the oversupply from shale gas production has not been mitigated by north american export as there has been no liquefying and export capacity

higher prices at canadian gas pumps international crude oil prices or local market concentration an empirical investigation there is little consensus on whether higher retail gasoline prices in canada are the result of international crude oil price fluctuations or local market power exercised by large vertically integrated firms i find that although both increasing local market concentration and higher average monthly wholesale prices are positively and significantly associated with higher retail prices wholesale prices are more important than local market concentration similarly crude oil prices are more important than the number of local wholesalers in determining wholesale prices these results suggest that movements in gasoline prices are largely the result of input price fluctuations rather than local market structure

credit crises precautionary savings and the liquidity trap we use a model a la bewly huggett ayagari to explore the eects of a credit crunch on consumer spending households borrow and lend to smooth idiosyncratic income shocks facing an exogenous borrowing constraint we look at the economy response after an unexpected permananent tightening of this constraint the interest rate drops sharply in the short run and then adjusts to a lower steady state level this is due to the fact that after the shock a large fraction of agents is far below their target holdings of precautionary savings and this generates a large temporary positive shock to net lending we then look at the eects on output here two opposing forces are present as households can deleverage in two ways by consuming less and by working more we show that under a reasonable parametrization the eect on consumer spending dominates and precautionary behavior generates a recession if we add nominal rigidities two things happen i supply side responses are muted and ii there is a lower bound on the interest rate adjustment these two elements tend to amplify the recession caused by the credit tightening

financial innovation and asset price volatility we compare asset prices in an overlapping generations model for incomplete and complete markets individuals within a generational cohort have heterogeneous beliefs about future states of the economy and thus would like to make bets against each other in the incomplete markets economy agents cannot make such bets asset price volatility is very small the situation changes dramatically when markets are completed through financial innovations as the set of available securities now allows agents with different beliefs to place bets against each other wealth shifts across agents and generations such changes in the wealth distribution lead to substantial asset price volatility

speculation and risk sharing with new financial assets while the traditional view of nancial innovation emphasizes the risk sharing role of new nancial assets belief disagreements about these assets naturally lead to speculation which represents a powerful economic force in the opposite direction this paper investigates the eect of nancial innovation on portfolio risks in an economy when both the risk sharing and the speculation forces are present financial assets provide hedging services but they are also subject to speculation because traders do not necessarily agree about their payos i de ne the average variance of traders net worths as a measure of portfolio risks for this economy and i decompose it into two components the uninsurable variance de ned as the average variance that would obtain if there were no belief disagreements and the speculative variance de ned as the residual variance that results from speculative trades based on belief disagreements financial innovation always decreases the uninsurable variance because new assets increase the possibilities for risk sharing my main result shows that nancial innovation also always increases the speculative variance this is true even if traders completely agree about the payos of new assets the intuition behind this result is the hedge more bet more eect traders use new assets to hedge their bets on existing assets which in turn enables them to place larger bets and take on greater risks my second set of results concern endogenous nancial innovation when belief disagreements are su ciently large a pro t seeking market maker introduces assets that maximize the average variance among all possible choices completely disregarding the risk sharing motive for nancial innovation my third set of results concern a calibration of the model in the context of the gdp indexed assets proposed by athanasoulis and shiller 2001 when traders have reasonable amounts of belief disagreements these assets would have the unintended consequence of increasing their consumption risks

intertemporal asset pricing with heterogeneous beliefs abstract we examine the behaviour of the interest rate asset prices and asset holdings in an economy with heterogeneous rationally updated beliefs about the expected rate of production growth the equilibrium interest rate is a weighted average of the interest rates that would prevail in economies populated by homogeneous agents with the beliefs of the respective agents in the heterogeneous model the weights are given by the fractions of total wealth held financial innovation affects the dynamics of allocations and prices but preserves the aggregate output process and the structure of equilibrium asset prices also display the wealth weighted average characterization journal of economic literature classification numbers c60 d52 d91 g12

a model of capital and crises we develop a model in which the capital of the intermediary sector plays a critical role in determining asset prices the model is cast within a dynamic general equilibrium economy and the role for intermediation is derived endogenously based on optimal contracting considerations low intermediary capital reduces the risk bearing capacity of the marginal investor we show how this force helps to explain patterns during financial crises the model replicates the observed rise during crises in sharpe ratios conditional volatility correlation in price movements of assets held by the intermediary sector and fall in riskless interest rates

pecuniary externalities in economies with financial frictions this article characterizes the efficiency properties of competitive economies with financial constraints in which phenomena such as fire sales and financial amplification may arise we show that financial constraints lead to two distinct types of pecuniary externalities distributive externalities that arise from incomplete insurance markets and collateral externalities that arise from price dependent financial constraints for both types of externalities we identify three sufficient statistics that determine optimal taxes on financing and investment decisions to implement constrained efficient allocations we also show that fire sales and financial amplification are neither necessary nor sufficient to generate inefficient pecuniary externalities we demonstrate how to employ our framework in a number of applications whereas collateral externalities generally lead to over borrowing the distortions from distributive externalities may easily flip sign leading to either under or over borrowing both types of externalities may lead to under or over investment

optimal time consistent macroprudential policy collateral constraints widely used in models of financial crises feature a pecuniary externality agents do not internalize how borrowing decisions made in good times affect collateral prices during a crisis we show that under commitment the optimal financial regulator s plans are time inconsistent and study time consistent policy quantitatively this policy reduces sharply the frequency and magnitude of crises removes fat tails from the distribution of asset returns and increases social welfare in contrast constant debt taxes are ineffective and can be welfare reducing while an optimized macroprudential taylor rule is effective but less so than the optimal time consistent policy

foreign banks trends and impact over the past two decades foreign banks have become much more important in domestic financial intermediation heightening the need to understand their behavior we introduce a new comprehensive database made publicly available on bank ownership including the home country of foreign banks for 5 324 banks in 137 countries over the period 1995 2009 we document large increases in foreign bank presence in many countries but with substantial heterogeneity in terms of host and banks home countries bilateral investment patterns and bank characteristics in terms of impact we document that the relation between private credit and foreign bank presence importantly depends on host country and banks characteristics specifically foreign banks only seem to have a negative impact on credit in low income countries in countries where they have a limited market share where enforcing contracts is costly and where credit information is limited available and when they come from distant home countries this shows that accounting for heterogeneity including bilateral ownership is crucial to better understand the implications of foreign bank ownership

intermediary asset pricing abstract we model the dynamics of risk premia during crises in asset markets where the marginal investor is a financial intermediary intermediaries face an equity capital constraint risk premia r

natural gas prices lng transport costs and the dynamics of lng imports according to the u s energy information administration lng is projected to become a much larger share of u s natural gas consumption rising from current levels of around 2 5 of total natural gas consumption to 12 4 by 2030 because natural gas and lng are substitutes natural gas prices are expected to be an important determinant of lng imports furthermore an increasing share of lng is traded under short term contracts with spot shipments being diverted to markets offering the highest returns netbacks relative natural gas prices as well as lng transportation costs are important determinants of lng netbacks this paper examines the empirical relationship between u s lng imports the henry hub price of natural gas relative to u k and asia gas prices and a proxy for lng transportation costs using monthly data from 1997 to 2007 granger causality tests error variance decomposition and impulse response analyses using a var model are employed to establish granger causality as well as the dynamics of natural gas prices and lng transportation innovations on lng imports

survival and long run dynamics with heterogeneous beliefs under recursive preferences i analytically characterize the long run behavior of an economy with two types of agents who differ in their beliefs and are endowed with homothetic recursive preferences agents with more incorrec

correlation between chinese and international energy prices based on a hp filter and time difference analysis abstract to establish a reasonable system and mechanism for chinese energy prices we use the granger causality test hodrick prescott hp filter and time difference analysis to research the pricing relationship between chinese and international energy prices we find that chinese and international crude oil prices changed synchronously while chinese refined oil prices follow the changes of international oil prices with the time difference being about 1 month to 2 months further australian coal prices granger causes chinese coal prices and there is a high correlation between them the u s electricity price is influenced by the wti crude oil price the u s gasoline price and the henryhub gas price due to the unreasonable price setting mechanism and regulation from the central government china s terminal market prices for both electricity and natural gas do not reflect the real supply demand situation this paper provides quantitative results on the correlation between chinese and international energy prices to better predict the impact of international energy price fluctuations on china s domestic energy supply and guide the design of more efficient energy pricing policies moreover it provides references for developing countries to improve their energy market systems and trading and to coordinate domestic and international energy markets

a theory of demand shocks this paper presents a model of business cycles driven by shocks to consumer expectations regarding aggregate productivity agents are hit by heterogeneous productivity shocks they observe their own productivity and a noisy public signal regarding aggregate productivity the public signal gives rise to noise shocks which have the features of aggregate demand shocks they increase output employment and inflation in the short run and have no effects in the long run numerical examples suggest that the model can generate sizable equilibrium dsge models of the business cycle include a large number of shocks to technol ogy monetary policy preferences etc but typically do not include expectational shocks as independent drivers of short run fluctuations 1 this paper explores the idea of expectation driven cycles looking at a model where technology determines equilibrium output in the long run and consumers receive noisy signals about technology in the short run the presence of noisy signals produces expectational errors this paper studies the role of these expectational errors in gener ating volatility at business cycle frequencies the model is based on two ingredients first consumers take time to recognize permanent changes in aggregate fundamentals although they may have good information on the current state of the individual firm or sector where they operate they have only limited information regarding the long run determinants of aggregate activity second consumers have access to public information that is relevant to estimate long run productivity this includes news about technological innovations publicly released macroeconomic and sectoral statistics financial market prices and public statements by policy makers however these signals provide only a noisy forecast of the long run effects of technological innovations this opens the door to noise shocks which induce consumers to temporarily overestimate or underestimate the productive capacity of the economy

margin based asset pricing and deviations from the law of one price in a model with heterogeneous risk aversion agents facing margin constraints we show how securities required returns increase in both their betas and their margin requirements negative shocks to fundamentals make margin constraints bind lowering risk free rates and raising sharpe ratios of risky securities especially for high margin securities such a funding liquidity crisis gives rise to bases that is price gaps between securities with identical cash flows but different margins in the time series bases depend on the shadow cost of capital which can be captured through the interest rate spread between collateralized and uncollateralized loans and in the cross section they depend on relative margins we test the model empirically using the credit default swap bond bases and other deviations from the law of one price and use it to evaluate central banks lending facilities jel g01 g12 g13 e44 e50 the paramount role of funding constraints becomes particularly salient during liquidity crises with the one that started in 2007 being an excellent case in point banks unable to fund their operations closed down and the funding problems spread to other investors such as hedge funds that relied on bank funding therefore traditional liquidity providers became forced sellers interest rate spreads increased dramatically treasury rates dropped sharply and central banks stretched their balance sheets to facilitate funding these funding problems had significant asset pricing effects the most extreme example being the failure of the law of one price loop securities with nearly

long term diversification paths and energy transitions in europe the concentration of the energy mixes of eight european countries is measured latecomers historically enjoyed lower levels of concentration in their energy mixes early comers followed an inverted u path of concentration latecomers a u path a time effect and size effect explains the different patterns small energy consuming countries will be able to do faster transitions

multinational banks and the global financial crisis weathering the perfect storm we use data on the 48 largest multinational banking groups to compare the lending of their 199 foreign subsidiaries during the great recession with lending by a benchmark group of 202 domestic banks contrary to earlier more contained crises parent banks were not a significant source of strength to their subsidiaries during the 2008 09 crisis as a result multinational bank subsidiaries had to slow down credit growth about twice as fast as domestic banks this was particularly the case for subsidiaries of banking groups that relied more on wholesale market funding domestic banks were better equipped to continue lending because of their greater use of deposits a relatively stable funding source during the crisis we conclude that while multinational banks may contribute to financial stability during local bouts of financial turmoil they also increase the risk of importing instability from abroad

china s coal price disturbances observations explanations and implications for global energy economies since china decontrolled coal prices its coal price has risen steadily and been unusually volatile in 2011 in particular high coal prices and capped electricity prices in china discouraged coal fired power generation triggering widespread power shortages we suggest that these coal price disturbances could be symptomatic of a major change in pricing dynamics of global fossil fuel markets with increasing correspondence between coal and oil prices globally historically global coal prices have been more stable and lower than oil and natural gas prices on a per heat basis in recent years however coal prices have been increasingly volatile worldwide and have tracked other fossil fuel prices more closely meanwhile the recent development of unconventional gas has substantially decoupled us natural gas and oil prices technically low us natural gas prices with potential fuel switching could drive us domestic coal prices lower however this effect is unlikely to counteract the overall trend in increasing coal consumption globally china s market size and unique partially controlled energy system make its reform agenda a key force in the global economy policymakers in the us e u and elsewhere should monitor china s economic reform agenda to anticipate and respond to changes accompanying china s increasing importance in the global energy economy

electricity prices and fuel costs long run relations and short run dynamics the paper examines the long run relation and short run dynamics between electricity prices and three fossil fuel prices coal natural gas and crude oil using annual data for the u s for 1960 2007 the results suggest 1 a stable long run relation between real prices for electricity and coal 2 bi directional long run causality between coal and electricity prices 3 insignificant long run relations between electricity and crude oil and or natural gas prices and 4 no evidence of asymmetries in the adjustment of electricity prices to deviations from equilibrium a number of implications are addressed

uncertainty shocks and balance sheet recessions this paper investigates the origin and propagation of balance sheet recessions i first show that in standard models driven by tfp shocks the balance sheet channel disappears when agents can write contracts on the aggregate state of the economy optimal contracts sever the link between leverage and aggregate risk sharing eliminating the concentration of aggregate risk that drives balance sheet recessions i then show that uncertainty shocks can help explain this concentration of aggregate risk and drive balance sheet recessions even with contracts on aggregate shocks the mechanism is quantitatively important and i explore implications for financial regulation

the macroeconomics of shadow banking we propose a dynamic macroeconomic model of nancial intermediation in an environment where households demand liquid assets in contrast to the literature intermediaries can issue equity without any friction in normal times intermediaries maximize liquidity creation by levering up the collateral value of their assets a process we call shadow banking a rise in uncertainty causes investors to demand liquidity in bad states intermediaries respond by simultaneously deleveraging and substituting toward safe liabilities shadow banking eectively shuts down prices fall and investment plummets the model generates amplication via endogenous collateral runs as well as ight to quality eects the model s macroeconomic eects are consistent with a slow economic recovery even when and especially when intermediary capital is high we analyze the impact of several policy interventions in the areas of unconventional monetary policy and regulatory reform

financial sector in flux financial sector in flux is an understatement several years after the 2008 09 banking crisis we are still confronted with a weak financial sector and as i will argue a limited understanding of the functioning of the financial system and causes of financial instability we also seem very uncertain about the desired structure of the industry which complicates the design and implementation of effective remedies in europe problems seem even more acute the deadly embrace of weak governments and struggling domestic financial institutions endangers economic growth for many years to come my reading is that fundamental changes related to information technology and the proliferation of financial markets have created a financial landscape that is highly opportunistic transaction driven and prone to destabilizing herding behavior in particular information technology has deepened markets and created trading opportunities that allow for excessive changeability via transactions that undermine the stability of highly leveraged institutions such as banks such a transaction oriented landscape is subjected to the boom and bust nature of financial markets and hence is more opportunistic than the more stable longer term oriented relationship focus that existed before i will argue that this has created a very fluid financial landscape that is beyond the control of supervisors contains enormous systemic risk and hence is fundamentally unstable i will also argue that market forces market discipline in particular may well be ineffective in containing instability actually my point will be that market forces are often at the root of financial instability structural remedies via a fundamental redesign of the financial system might be needed to restore stability

time varying macroeconomic effects of energy price shocks a new measure for china abstract in this paper we examine the effects of world energy price shocks on china s macroeconomy over the past two decades we begin by showing that the use of oil prices as a proxy for more general energy price dynamics is not appropriate for the case of china having established this fact we propose a new energy price index which accurately reflects the structure of china s energy expenditure shares and intertemporal fluctuations in international energy prices we then employ a sufficiently rich set of time varying vars identified through a new set of agnostic sign restrictions to estimate the effects of energy price shocks on china s macroeconomy our main result is that positive energy price shocks generate statistically significant reductions in real gdp growth and increases in inflation interestingly both the sets of responses have consistently declined over the sample period next the interest rate responses are found to be consistently positive over the sample period given the aforementioned stagflation result this suggests that the pboc is more focused on inflation stabilization as compared to facilitating output growth all presented results are shown to be robust under both official national data and those developed by chang et al 2015 thus strengthening our conclusion that energy price shocks have significant time varying effects on china s macroeconomy

retail price asymmetries in local gasoline markets the experience of the salt lake city retail gasoline market during the 1989 to 1993 period suggests that there was asymmetric adjustment wholesale and retail price data unique to the salt lake market are used to test for the existence of three types of price asymmetry during this period with respect to the magnitude of the pass through of wholesale price changes evidence of price asymmetry during periods of average weekly wholesale price changes is found however during market shocks the evidence points in the direction of retail price symmetry evidence of asymmetry with respect to the timing and pattern of the retail price response is found for periods of both average and market shock changes since gasoline is purchased by the consumer in local markets conclusions reached by studies of market pricing behaviour that rely on national data may not be relevant for local policy decisions this appears to be the case for the salt lake city market

empirical investigation of retail fuel pricing the impact of spatial interaction competition and territorial factors abstract this paper explores the determinants of fuel prices by proposing an empirical framework that integrates three kinds of influencing factors spatial interaction competition and territorial factors for competition we define a general variable the presence of competing stations within a radius and two specific variables the presence of low cost stations and the presence of same brand stations we proceed with a step wise adjustment of the radius by gradually increasing it to evaluate the spatial scope of different competition effects using data on prices of fuel stations in rome italy we estimate spatial econometric models that provide evidence of spatial dependence in price between stations we also find that competition affects prices but the relevance of its impact depends on radius length finally the territorial factors remarkably influence prices if these factors are introduced in the model the magnitude of spatial parameters weakens allowing to accurately assess the intensity of spatial dependence

excessive dollar debt financial development and underinsurance we propose that the limited financial development of emerging markets is a significant factor behind the large share of dollar denominated external debt present in these markets we show that when financial constraints affect borrowing and lending between domestic agents agents undervalue insuring against an exchange rate depreciation since more of this insurance is present when external debt is denominated in domestic currency rather than in dollars this result implies that domestic agents choose excessive dollar debt we also show that limited financial development reduces the incentives for foreign lenders to enter emerging markets the retarded entry reinforces the underinsurance problem

co integration of ice gas oil and crude oil futures abstract in this paper the relationship between gas oil and brent crude oil futures prices is investigated the analysis is based on daily price series for five different contract lengths traded on ice futures europe the price series and their first differences are tested for stationarity linear relationships between the pair wise gas oil and crude oil contracts are then tested for co integration a co integrated relationship is found for the 1 and 2 month contracts covering data from 1994 to 2009 and error correction models are established to estimate the relationships no co integrated relationships are found for the 3 6 and 12 month contracts covering the period 2002 2009 nor for the 1 and 2 month contracts for this period the futures prices for this period are collected from a volatile market including hurricane katrina the economic boom and the following financial crises which might explain these results thus in such volatile periods the spread between gas oil and crude oil is likely to deviate and it might take several years until it reverts to its equilibrium value for energy traders and hedgers this will imply that exposures to the crack spread should be treated with great care in such market environments

do gasoline prices respond asymmetrically to crude oil price changes the authors test and confirm that retail gasoline prices respond more quickly to increases than to decreases in crude oil prices among the possible sources of this asymmetry are production inventory adjustment lags and market power of some sellers by analyzing price transmission at different points in the distribution chain the authors attempt to shed light on these theories spot prices for generic gasoline show asymmetry in responding to crude oil price changes which may reflect inventory adjustment effects asymmetry also appears in the response of retail prices to wholesale price changes possibly indicating short run market power among retailers