capital flow controls international asset pricing and investors welfare a multi country framework this paper investigates the impact of capital flow restrictions on the pricing of securities on the optimal portfolio composition for investors of different nationalities and on their welfare under capital flow controls the equilibrium price of a security is determined jointly by its international and national risk premiums and investors acquire nationality specific portfolios along with a market wide proxy for the world market portfolio removal of investment barriers generally leads to an increase in the aggregate market value of the affected securities and all investors favor a move toward market integration introduction of different types of index funds in the world market generally increases world market integration and investor welfare in recent years the international capital markets have undergone numerous important changes that have increased the international linkage of national markets these changes include the creation of national index funds e g mexico korea taiwan india france and scandinavia and selective liberalization e g brazil india korea sweden and japan despite their potential impact on the national economies and global finance it is not clear what consequences these integrating changes entail for example is welfare increased by allowing cross border investment that is restricted to purchasing the entire national portfolio of which the national index fund is a class unfortunately with the exception of subrahmanyam 1975a who studies the pricing and welfare effects of fully integrating heretofore completely segmented markets other international asset pricing models that incorporate capital flow restrictions for instance black 1974 stulz 1981b lessard et al 1983 errunza and losq 1985 cooper and kaplanis 1986 and eun and janakiramanan 1986 analyze the pricing but not the welfare effects of investment barriers to analyze systematically the welfare implications of various structural changes in the current market environment this paper follows the lead of subrahmanyam and recasts the analysis in two important respects

contagion as a wealth effect financial contagion is described as a wealth effect in a continuous time model with two risky assets and three types of traders noise traders trade randomly in one market long term investors provide liquidity using a linear rule based on fundamentals convergence traders with logarithmic utility trade optimally in both markets asset price dynamics are endogenously determined numerically as functions of endogenous wealth and exogenous noise when convergence traders lose money they liquidate positions in both markets this creates contagion in that returns become more volatile and more correlated contagion reduces benefits from portfolio diversification and raises issues for risk management during the f inancial panic associated with the default of the russian government in august 1998 and the subsequent collapse of the hedge fund long term capital management numerous hedge funds banks and securities firms tried simultaneously to reduce exposures to a variety of financial instruments such as russian bonds brazilian stocks u s mortgages spreads between on therun and off the run government securities and spreads between swaps and u s treasuries although the fundamental values of these positions would appear to have little correlation during this financial crisis the asset prices in these markets exhibited the following common empirical pattern 1 financial intermediaries suffered losses as prices moved against their positions 2 market depth and liquidity decreased simultaneously in several markets 3 the volatility of prices increased simultaneously in several markets and

spillovers through banking centers a panel data analysis of bank flows abstract this paper presents evidence that spillovers through bank lending contributed to the transmission of currency crises during the recent episodes of financial instability in emerging markets the innovation of the paper is that it looks beyond aggregated measures of contagion into the structure of bank flows disaggregating by banking centers the main findings are that spillovers caused by banks exposures to a crisis country help predict flows in third countries after the mexican and asian crises but not after the russian crisis in the latter there is evidence of a generalized outflow from emerging markets the importance of spillovers through banking centers suggests that countries might reduce contagion risk by diversifying the sources of their financing and by carefully monitoring borrowing from creditors exposed to potential crisis countries

optimal portfolio policies with borrowing and shortsale constraints abstract we characterize optimal intertemporal portfolio policies for investors with crra utility facing either a borrowing constraint or shortsale restrictions or both the optimal constrained portfolios are identified as optimal unconstrained portfolios for a higher riskless rate or for a subset of the risky assets or for a combination of the two settings our characterization is based on duality results in cvitanic and karatzas 1992 annals of applied probability 2 767 818 for optimal portfolio investment when portfolio values are more generally constrained to a closed convex nonempty subset of r n

interest rates and currency prices in a two country world abstract this paper is a theoretical study of the determination of prices interest rates and currency exchange rates set in an infinitely lived two country world which is subject both to stochastic endowment shocks and to monetary instability formulas are obtained for pricing all equity claims nominally denominated bonds and currencies and these formulas are related to earlier closely related results in the theories of money finance international trade

sustainable homeservices toward household services that enhance ecological social and economic sustainability abstract the idea of services replacing products is increasingly offered as a solution to making the production and consumption patterns of the affluent consumers more sustainable however the discussion about sustainable services or sustainable product service systems tends to emphasize the eco efficiency perspective rather than explicitly capture all sustainability aspects social or socioeconomic considerations are often forgotten or by passed without scrutiny this paper argues that there is the need for a concept of sustainable services in which the social sustainability aspect is also recognized with equal attention since a major part of private consumption occurs in the household context living at home and moving to and from it this paper will put forth the concept of sustainable homeservices and will suggest a way to assess sustainability of services directed to households for assessing the sustainability of services directed to households a set of indicators relating to the ecological social and economic dimensions of sustainability is proposed with the aim of giving an idea of how to assess homeservices in practical terms the paper will also exemplify how one could operationalize these indicators on an ordinal rating scale the conclusion is that it is possible to assess the sustainability of a homeservice in a relative fashion using no service or the product alternative as the point of comparison households alone have a limited capacity to influence their consumption choices because other actors set the frame for this reason institutional arrangements for making services easily available to households are outlined it appears that housing organizations have a central role in the alternative option for organizing the supply of service provision they are involved in five of the seven alternative ways of supplying services that could be identified the role of the housing organization can vary from direct supply to lighter forms such as cooperative arrangements with external service providers or resident involvement

commodity trade and international risk sharing how much do financial markets matter abstract this paper evaluates the social gains from international risk sharing in some simple general equilibrium models with output uncertainty a simulation model calibrated to selected moments of u s and japanese data estimates the incremental loss from a ban on international portfolio diversification to be on the order of 0 20 percent of output per year even the theoretical gains from asset trade may disappear under alternative sets of assumptions on preferences and technology the paper argues that the small magnitude of potential trade gains may help explain the apparently inconsistent findings of empirical studies on the degree of international capital mobility

an evaluation of active and passive labour market policy this paper reports results of an empirical study on the effectiveness of labour market policy data from austria france germany great britain sweden and the united states are used to apply a simultaneous equation model with wages and employment being the endogenous variables in order to explain employment the amount of unemployment benefits per unemployed passive labour market policy and payment for wage subsidies and training per employed and unemployed person active labour market policy are used in addition to real wages and output wages and output have their expected impact on total employment it turns out that passive labour market policy has a negative and active labour market measures a positive effect on the number of persons employed

dynamic equilibrium with liquidity constraints this article studies an intertemporal economy with liquidity constrained and unconstrained individuals we use a stopping time approach to solve the finite horizonconstrained consumption portfolio problem with constant relative risk aversion and to examine the structure of equilibrium the impact of the constraint on the optimal consumption and the financing portfolio is assessed the equilibrium state price density is related to the exercise boundary of an american style contingent claim with nonlinear payoff this stopping time characterization enables us to prove the existence of an equilibrium and can be implemented numerically properties of equilibrium bond and stock returns are examined copyright 2003 oxford university press

asset pledgeability and international transmission of financial shocks abstract this paper studies the international transmission of pledgeability shocks as the recent crisis involved a negative shock to the pledgeability of assets the paper develops a two country portfolio model with leveraged investors that incorporates this type of shock and a solution approach for the corresponding portfolio choice problem this approach captures the effect of pledgeability on asset risk premiums the paper finds that the equilibrium portfolios play a heightened role as transmission channels moreover by complementing the effect of productivity shocks under borrowing constraints the pledgeability shocks improve the fit of an otherwise standard international macroeconomic model for the g7 countries especially during crises

the role of portfolio constraints in the international propagation of shocks we study the comovement among stock prices and exchange rates in a three good three country centre periphery dynamic equilibrium model in which the centre s agents face portfolio constraints we characterize equilibrium in closed form for a broad class of portfolio constraints solving for stock prices terms of trade and portfolio holdings we show that portfolio constraints generate wealth transfers between the periphery countries and the centre which increase the comovement of the stock prices across the periphery we associate this excess comovement caused by portfolio constraints with the phenomenon known as contagion the model generates predictions consistent with other important empirical results such as amplification and flight to quality effects copyright 2008 wiley blackwell

asymmetric price movements and borrowing constraints a rational expectations equilibrium model of crises contagion and confusion this study proposes a rational expectations equilibrium model of crises and contagion in an economy with information asymmetry and borrowing constraints consistent with empirical observations the model finds 1 crises can be caused by small shocks to fundamentals 2 market return distributions are asymmetric and 3 correlations among asset returns tend to increase during crashes the model also predicts 1 crises and contagion are likely to occur after small shocks in the intermediate price region 2 the skewness of asset price distributions increases with information asymmetry and borrowing constraints and 3 crises can spread through investor borrowing constraints

the directional volatility connectedness between crude oil and equity markets new evidence from implied volatility indexes in this paper we use a set of newly introduced implied volatility indexes to investigate the directional connectedness between oil and equities in eleven major stock exchanges around the globe from 2008 to 2015 the inference on the oil equity implied volatility relationships depends on diebold and yilmaz 2012 2014 2015 who proposed a set of directional measures that enable the dynamic and directional characterization of the relationships among financial variables we find uniform results across the sample countries indicating that the connectedness between oil and equity is established by the bi directional information spillovers between the two markets however we find that the bulk of association is largely dominated by the transmissions from the oil market to equity markets and not the other way around the pattern of transmissions is varying over the sample period however most of the linkages between oil and equities are established from the mid of 2009 to the mid of 2012 which is a period that witnessed the start of global recovery

on crises contagion and confusion abstract since the tequila crisis of 1994 1995 the asian flu of 1997 and the russian virus of 1998 economists have been busy producing research on the subject of contagion yet few studies have examined empirically through which channels the disturbances are transmitted if there are indeed fundamental reasons for the spillovers we observe we attempt to fill this gap by analyzing how both trade links and the largely ignored financial sector links influence the pattern of fundamentals based contagion we examine the role of international bank lending the potential for cross market hedging and bilateral and third party trade in the propagation of crises

asset prices and exchange rates in this paper we study the implications of introducing demand shocks and trade in goods into an otherwise standard international asset pricing model trade in goods gives rise to an additional channel of international propagation through the terms of trade absent in traditional single good asset pricing models the inclusion of demand shocks helps overturn many unrealistic implications of existing international flnance models in which productivity shocks are the sole source of uncertainty our model generates a rich set of implications on how stock bond and foreign exchange markets co move we solve the model in closed form which yields a system of equations that can be readily estimated empirically our estimation validates the main predictions of the theory

on the measurement of the international propagation of shocks is the transmission stable abstract the empirical literature on contagion focuses mainly on two questions 1 what are the channels through which shocks are transmitted across countries trade macro similarities financial weaknesses or investor behavior 2 is there a shift in the transmission of shocks during crises are crises spread with higher intensity if so why this paper concentrates on the econometric problems that arise in dealing with the second question the data where most of these issues are raised are plagued with problems of simultaneous equations omitted variables and heteroskedasticity the standard methodologies used in the literature are inappropriate if all three are present this paper applies a new procedure that allows one to test for parameter stability taking into account all three predicaments the paper tests for the stability of the transmission mechanisms among 36 stock markets during the last three major international financial crises mexico 1994 asia 1997 and russia 1998

the relation between sovereign credit rating revisions and economic growth abstract a country s economic growth exhibits a significant response to sovereign rating changes a one notch upgrade downgrade causes an increase decline of about 0 6 0 3 in re rated countries five year average annual growth rates the results hold after accounting for other determinants of economic growth and potential endogeneity problems and are robust to the use of quarterly data changes in country rating affect economic growth via the interest rate and capital flow channels narrower sovereign bond yield spreads and increased capital inflows are associated with upgrades which stimulate re rated countries economic performance and the converse holds for downgrades

international business cycles with endogenous incomplete markets backus kehoe and kydland 1992 baxter and crucini 1995 and stockman and tesar 1995 find two major discrepancies between standard international business cycle models with complete markets and the data in the models cross country correlations are much higher for consumption than for output while in the data the opposite is true and cross country correlations of employment and investment are negative while in the data they are positive this paper introduces a friction into a standard model that helps resolve these anomalies the friction is that international loans are imperfectly enforceable any country can renege on its debts and suffer the consequences for future borrowing to solve for equilibrium in this economy with endogenous incomplete markets the methods of marcet and marimon 1999 are extended incorporating the friction helps resolve the anomalies more than does exogenously restricting the assets that can be traded

optimal consumption and portfolio policies when asset prices follow a diffusion process abstract we consider a consumption portfolio problem in continuous time under uncertainty a martingale technique is employed to characterize optimal consumption portfolio policies when there exist nonnegativity constraints on consumption and on final wealth we also provide a way to compute and verify optimal policies our verification theorem for optimal policies involves a linear partial differential equation unlike the nonlinear partial differential equation of dynamic programming the relationship between our approach and dynamic programming is discussed we demonstrate our technique by explicitly computing optimal policies in a series of examples in particular we solve the optimal consumption portfolio problem for hyperbolic absolute risk aversion utility functions when the asset prices follow a geometric brownian motion the optimal policies in this case are no longer linear when nonnegativity constraints on consumption and on final wealth are included by these examples one can see that our approach is much easier than the dynamic programming approach

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

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

are correlations of stock returns justified by subsequent changes in national outputs abstract in an integrated world capital market the same pricing kernel is applicable to all securities we apply this idea to the stock returns of different countries we investigate the underlying determinants of cross country stock return correlations first we determine for a given measured degree of commonality of country outputs what should be the degree of correlation of national stock returns we propose a framework that contains a statistical model for output and an intertemporal financial market model for stock returns we then attempt to match the correlations generated by the model with measured correlations our results show that under the hypothesis of market segmentation the model correlations are much smaller than observed correlations however assuming world markets are integrated our model correlations can be matched with observed correlations

speculative attacks in a two peg model abstract we present a two country model of speculative attacks where the two countries peg their currency to the u s dollar and a continuum of investors can either attack or defend one or the two pegs the main objective of the paper is to show how extending a single peg model of speculative attacks with the presence of a second country pegging its currency changes the range of parameters for which a currency is attacked the model suggests that the presence of another country fixing its exchange rate changes dramatically the range of parameters for which a currency is attacked or defended for example the model indicates that a peg with a relatively high probability of collapse could survive if the other peg is not very likely to be abandoned so investors prefer instead to defend the second peg finally under complete information when the level of fundamentals in both economies is neither weak nor strong the stronger peg may collapse while the weaker peg may survive so in principle any peg could be successfully attacked

the unholy trinity of financial contagion over the last 20 years some financial events such as devaluations or defaults have triggered an immediate adverse chain reaction in other countries which we call fast and furious contagion yet on other occasions similar events have failed to trigger any immediate international reaction we argue that fast and furious contagion episodes are characterized by the unholy trinity i they follow a large surge in capital flows ii they come as a surprise and iii they involve a leveraged common creditor in contrast when similar events have elicited little international reaction they were widely anticipated and took place at a time when capital flows had already subsided

equilibrium asset prices and exchange rates abstract in a two country two good world we construct an intertemporal international general equilibrium for two logarithmic representative agents financial markets are fully integrated and independently incomplete the equilibrium expected rate of change of the exchange rate increases with the differential of interest rates and the volatility of the domestic equity markets and decreases with the covariance between domestic and foreign equity markets the equilibrium volatility of the exchange rate is the sum of the volatilities due to idiosyncratic factors in the financial markets and a term that represents the difference of weights in the common international factor

some contagion some interdependence more pitfalls in tests of financial contagion this paper develops a test of contagion in financial markets based on bivariate correlation analysis which generalizes existing tests and applies it to the international effects of the hong kong stock market crisis of october 1997 contagion is defined as a structural break in the international transmission of financial shocks for plausible values of the variance of country specific shocks in hong kong our test finds evidence of contagion for 5 countries out of a sample of 17 this is in sharp contrast with the findings of recent literature according to which there is no contagion only interdependence we show that this strong result in the literature is due to arbitrary and unrealistic restrictions on the variance of country specific shocks

portfolio performance and agency the evaluation and compensation of portfolio managers is an important problem for practitioners optimal compensation will induce managers to expend eort to generate information and to use it appropriately in an informed portfolio choice our general model points the way towards analysis of optimal performance evaluation and contracting in a rich model optimal contracting in the model includes an important role for portfolio restrictions that are more complex than the sharing rule the agent s compensation gives the agent approximately to a benchmark return plus an incentive fee equal to a portfolio measure that is approximately the excess of return above the benchmark this measure is often used by practitioners but is simpler than the jensen measure and other measures commonly recommended in the academic literature in addition to the excess return above the xed benchmark the manager is given some additional incentive to take a position that deviates from the benchmark to remove an incentive to tend towards being a closet indexer ecient contracting involves restrictions on what portfolio strategies can be pursued and prior communication of the information gathered

asset market linkages in crisis periods we characterize asset return linkages during periods of stress by an extremal dependence measure contrary to correlation analysis this nonparametric measure is not predisposed toward the normal distribution and can allow for nonlinear relationships our estimates for the g 5 countries suggest that simultaneous crashes between stock markets are much more likely than between bond markets however for the assessment of financial system stability the widely disregarded cross asset perspective is particularly important for example our data show that stock bond contagion is approximately as frequent as flight to quality from stocks into bonds extreme cross border linkages are surprisingly similar to national linkages illustrating a potential downside to international financial integration

on trees and logs abstract in this paper we contrast the main workhorse model in asset pricing theory the lucas 1978 tree model lt model to a benchmark model in financial equilibrium theory the real assets model ra model it is commonly believed that the two models entail similar conclusions since the lt model is a special case of the ra model but this is simply wrong implications of these models can be strikingly at odds indeed under the widely used log linear specification of households preferences we show that for a large set of initial endowments the lt model even with potentially complete financial markets admits only peculiar financial equilibria in which the stock market is completely degenerate in that all stocks offer the same investment opportunity and yet allocation is pareto optimal we investigate why the lt model is so much at variance with the ra model and uncover new results on uniqueness of financial equilibria and introduction of portfolio constraints obtaining in the lt model but not in the ra model