can financial intermediation induce endogenous fluctuations abstract this paper studies the possibility of endogenous fluctuations caused by activities of financial intermediaries risk averse agents borrow from banks and invest in a risky two state capital technology the probability of success with the technology is assumed to be decreasing in the amount of capital invested in a complete information setting with intermediation the efficient loan contract achieves complete risk sharing but the amount invested in the risky project is smaller than the loan size this income effect is responsible for the endogenous generation of complex dynamics in the absence of intermediation the economy studied cannot exhibit any cyclical fluctuations

monetary policy and stock market dynamics across monetary regimes abstract this paper examines the dynamic linkages between monetary policy and the stock market during the three distinct monetary regimes of burns volcker and greenspan since the 1970s some major findings are the following first in the 1990s it appears that there was a disconnection between federal reserve actions via the federal funds rate and responses by the stock market second the impact of inflation on the stock market did not surface as significant in the later parts of 1980s and the 1990s and third significant asymmetric effects of monetary policy on the stock markets were observed throughout each monetary regime but these were more pronounced during bear markets than bull markets these results suggest that there was no consistent dynamic relationship between monetary policy and the stock market and that the nature of such dynamics was different in each of the three monetary regimes

financial collapse a lesson from the great depression abstract we analyze financial collapses such as the one that occurred during the u s great depression from the perspective of a monetary model with multiple equilibria the multiplicity arises from the presence of a strategic complementarity due to increasing returns to scale in the intermediation process intermediaries provide the link between savers and firms who require working capital for production fluctuations in the intermediation process are driven by variations in the confidence agents place in the financial system from a positive perspective our model matches quite closely the qualitative changes in important financial and real variables the currency deposit ratio ex post real interest rates deflation and production over the great depression period an experience often attributed to financial collapse further we assess whether the policy prescription advocated by friedman and schwartz adding liquidity to the banking system through increases in the money supply would have overcome strategic uncertainty and thus avoided a financial collapse

management ownership and market valuation an empirical analysis we investigate the relationship between management ownership and market valuation of the firm as measured by tobin s q in a 1980 cross section of 371 fortune 500 firms we find evidence of a significant nonmonotonic relationship tobin s q first increases then declines and finally rises slightly as ownership by the board of directors rises for older firms there is evidence that q is lower when the firm is run by a member of the founding family than when it is run by an officer unrelated to the founder

steepness and deepness in the australian macroeconomy this study uses nonparametric tests the triples test and the bds test to examine whether key australian macroeconomic aggregates exhibit nonlinearities and important steepness and deepness asymmetries at the business cycle frequency evidence is found of nonlinearities but there is little evidence of deepness in the australian macroeconomy however there is evidence of steepness especially concerning labour market variables as well as both the cpi and m3 the evidence suggests that unemployment employment rises falls rapidly in recessions and only recovers slowly over time also positive asymmetries in m3 are reflected in similar asymmetries in the cpi but not in output consumption or investment

revisiting the model of credit cycles with good and bad projects abstract we revisit the model of endogenous credit cycles by matsuyama 2013 sections 2 4 first we show that the same dynamical system that generates the equilibrium trajectory is obtained under a much simpler setting such a streamlined presentation should help to highlight the mechanism through which financial frictions cause instability and recurrent fluctuations then we discuss the nature of fluctuations in greater detail when the final goods production function is cobb douglas for example the unique steady state possesses corridor stability locally stable but globally unstable for empirically relevant parameter values this also means that when a parameter change causes the steady state to lose its local stability its effects are catastrophic and irreversible so that even a small temporary change in the financial friction could have large permanent effects on volatility other features of the dynamics include an immediate transition from the stable steady state to a stable asymmetric cycle of period n 3 along which n 1 2 consecutive periods of gradual expansion are followed by one period of sharp downturn as well as to a robust chaotic attractor these results demonstrate the power of the skew tent map as a tool for analyzing a regime switching dynamic economic model

ready for capital account convertibility abstract this paper investigates whether the impact of capital account convertibility on the long term volatility of economic growth depends on financial development it estimates a system of three simultaneous equations mean growth volatility of growth and financial development this allows for the study of both the impact of capital account liberalization on volatility as well as its direct impact on financial development results indicate that economies with low financial development fall prey to excess volatility arising from capital account openness while capital account openness itself has a significant positive impact on financial development the results are robust to alternative measures of financial development and volatility and to the removal of outliers

stock option repricing heads i win tails you lose recent scandals at enron worldcom and global crossing have put the ethical spotlight on corporate malfeasance as never before however these are the situations in which management knew that they made the wrong choice as professor joseph badaracco of harvard business school points out the real ethical dilemmas arise when people must choose between right and right where both choices can be justified yet one must be chosen over the other whether or not to reprice stock options represents one such ethical dilemma repricing can help exodus of talented employees and motivate them to improve firm performance however it alienates shareholders and other workers of the company who are left unprotected from the adverse economic consequences of a stock price decline

the speculative efficiency hypothesis the hypothesis that forward prices are the best unbiased forecast of future spot prices is often presented in the economic and financial analysis of futures markets this paper considers the hypothesis independently of its implications for rational expectations or market efficiency and in order to stress this fact the term speculative efficiency is used to characterize the state envisaged under the hypothesis if a market is subject to efficient speculation the supply of speculative funds is infinitely elastic at the forward price that is equal to the expected future spot price the expected future spot price is a market price determined as the solution to the underlying rational expectations macroeconomic model although the paper is primarily concerned with testing this hypothesis in the foreign exchange market the methodology introduced in the paper is of general application to all futures markets this abstract was borrowed from another version of this item

foreign exchange market efficiency and common stochastic trends abstract in a recent paper baillie and bollerslev 1989 using daily data from 1980 to 1985 identified six common stochastic trends in a vector of seven nominal exchange rates implying the existence of one cointegrating vector cointegration implies that granger causality must run in at least one direction that is at least one of the exchange rates is predictable using current available information this result has been interpreted as foreign exchange market inefficiency by many another interpretation is suggested if the stationary linear combination of spot rates proxies for a time varying risk premium in some way then these results could be explained in a rational and risk averse market this possibility is eliminated if the time series properties of the risk premium are incompatible with those of the error correction term specifically it is demonstrated that the forward risk premium is non stationary for the exchange rates that comprise the exchange rate cointegration relationship in this paper the existence of common stochastic trends in a vector of nominal exchange rates is tested over the period 1974 to 1991 the efficiency of foreign exchange markets is then tested by examining the implications of stochastic trends in the forward premium and what this means for the time series properties of a time varying forward risk premium jel f31 g14

north south lending and endogenous domestic capital market inefficiencies abstract we develop an open economy model of intertemporal trade under asymmetric information capital market imperfections are endogenous and depend on a country s stage of economic development relative to the perfect information benchmark north south capital flows are dampened and possibly reversed and world interest rates are lower whereas riskless rates are equalized across borders the domestic loan rate is higher in poorer countries the model can be applied to a number of policy issues including the debt overhang problem the indexation of foreign public debts and the effect of income distribution on growth

lending terms and aggregate productivity abstract several empirical studies suggest that lending terms are eased in expansions and tightened in recessions thereby influencing the mix of financed entrepreneurs we study a model of adverse selection in competitive financial markets and show that lending terms deteriorate with the aggregate state under two general conditions if exogenous increments to entrepreneurs productivity raise returns to investment and or tighten the credit line needed to screen out a given entrepreneur type competition results in contracts with less screening two endogenous effects on productivity emerge production scales grow closer to optimal but lower productivity entrepreneurs enter the mix of producers the positive negative effect dominates at low high aggregate states

measuring business cycles a modern perspective in the first half of this century special attention was given to two features of the business cycle 1 the comovement of many individual economic series and 2 the different behavior of the economy during expansions and contractions both of these attributes were ignored in many subsequent business cycle models which were often linear representations of a single macroeconomic aggregate however recent theoretical and empirical research has revived interest in each attribute separately notably dynamic factor models have been used to obtain a single common factor from a set of macroeconomic variables and nonlinear models have been used to describe the regime switching nature of aggregate output we survey these two strands of research and then provide some suggestive empirical analysis in an effort to unite the two literatures and to assess their usefulness in a statistical characterization of business cycle dynamics

economic and psychological perspectives on ceo compensation a review and synthesis to many the principal agent model is the obvious lens through which executive pay should be viewed such a sentiment sits uncomfortably with a large number of empirical studies suggesting that the process of determining executive pay seems to be more readily explained by recourse to arguments of managerial power and influence this article investigates the micro underpinnings of boardroom behavior in order to explain this departure from principal agency theory s argument that executive compensation serves to align interests between the owners of the company and its senior managers we find that there are strong interaction effects among social influence variables and the social setting of boardroom activity generous pay awards bearing only a weak connection to corporate performance are explained in the context of the social psychology of the boardroom these results and a review of the empirical research suggest the need for a more comprehensive model of executive compensation that incorporates both economic and psychological determinants copyright 2010 the author 2010 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

money bonds and foreign exchange in the theory of finance capital markets provide securities which allow the ownership of productive assets to be allocated among investors according to their willingness to bear risk in exchange for return and independently of their tastes for the productive services provided by the assets this paper uses the theory of finance to study the role of money as a productive asset and the transformation of money into a portfolio asset true to its purpose the capital market provides securities nominal bonds that allow an allocation of the current services of the money supply according to its current productivity and without regard for its future purchasing power risk and an allocation of the future purchasing power risk of the money supply according to the willingness of investors to bear this risk in exchange for return and without regard for investor needs for the future transactions services of money in open

trend reverting fluctuations in the life cycle model abstract aggregate time series provide evidence of short term dynamic adjustment that appears to be governed by complex or negative real eigenvalues this finding is at odds with the predictions of reasonably parameterized convex one sector growth models with complete markets we study life cycle economies in which aggregate saving depends non trivially on the distribution of wealth among cohorts if consumption goods are weak gross substitutes near the steady state price vector we prove that the unique equilibrium of a life cycle exchange economy converges to the unique non monetary steady state via damped oscillations we also discuss examples and extensions

financial intermediation and regime switching in business cycles the authors study a one sector growth model where capital investment is credit financed and there is an adverse selection problem in credit markets the presence of adverse selection creates an indeterminacy of equilibrium many equilibria display permanent fluctuations characterized by transitions between walrasian regimes and regimes of credit rationing cyclical contractions involve declines in real interest rates increases in credit rationing and withdrawals of savings from banks for some configurations of parameters all equilibria display cyclical fluctuations the authors provide sufficient conditions for deterministic cycles consisting of m periods of expansion followed by n periods of contraction to exist copyright 1998 by american economic association

single name credit risk portfolio risk and credit rationing this paper introduces non diversifiable risk in the stiglitz weiss adverse selection model so that an increase in the average riskiness of the borrower pool causes higher portfolio risk this opens up the possibility of equilibrium credit rationing comparative statics analysis shows that an increase in risk aversion turns a two price equilibrium into a rationing equilibrium a two price equilibrium is more inefficient than a rationing equilibrium and a usury law that rules out the higher of the two interest rates can be welfare improving contrary to the common result the equilibrium may be characterized by over investment

banking crises and nonlinear linkages between credit and output in this article we analyse the asymmetric causality linkages between credit growth and output growth during banking crises we employ a recently developed procedure based on a bivariate markov switching model to test the hypotheses of independence causality and asymmetric causality between credit and output using a sample of 103 banking crises around the world we find that neither credit nor output takes precedence as a variable in calm and crisis periods although there is evidence of instantaneous interdependence between the banking and real sector during crises the results suggest that shocks propagate mostly within a year between the banking sector and the real economy the linear link between credit growth and output growth is also regime dependent

credit and economic activity credit regimes and nonlinear propagation of shocks in this paper we examine empirically whether credit plays a role as a nonlinear propagator of shocks this propagation takes the form of a threshold vector autoregression in which a regime change occurs if credit conditions cross a critical threshold using nonlinear impulseresponse functions we evaluate the dynamics implied by the threshold model these suggest that shocks have a larger effect on output in the tight credit regime than is normally the case and that contractionary monetary shocks typically have a larger effect than expansionary shocks finally using a nonlinear version of historical decompositions we attempt to determine the relative contribution to output growth of shocks and the nonlinear structure

indeterminacy and increasing returns abstract we investigate properties of the one sector growth model with increasing returns under two organizational structures capable of reconciling the existence of aggregate increasing returns with competitive behavior by firms the first involves input externalities the second involves monopolistic competition we show for parameters in close accord with recent literature on real business cycles that the model displays an indeterminate steady state that can be exploited to generate a model of business fluctuations driven by self fulfilling beliefs in our first class of models growth is generated by exogenous increases in factor productivity in the second class the marginal product of capital is large enough for endogenous growth journal of economic literature classification numbers e00 e3 o40

the effects of inflation on economic growth lessons from latin america this paper investigates the relationship between inflation and long run growth it presents an endogenous growth model that illustrates the channels through which inflation affects growth the model highlights the effects of inflation on the productivity of capital and the rate of capital accumulation the reduction in growth is caused by a diversion of resources away from activities that lead to faster rates of growth toward activities associated with reducing the costs of inflation the negative association between inflation and growth is assessed empirically for a sample group of latin american countries this abstract was borrowed from another version of this item

credit growth monetary policy and economic activity in a three regime tvar model we employ a threshold vector autoregression tvar methodology in order to examine the nonlinear nature of the interactions among credit market conditions monetary policy and economic activity we depart from the existing literature on the subject along two dimensions first we focus on a model in which the relevant threshold variable describes the state of economic activity rather than credit market conditions second in contrast to the existing tvar literature which concentrates exclusively on single threshold models we allow for the presence of a second threshold which is overwhelmingly supported by all relevant statistical tests our results indicate that the dynamics of the interactions among credit market conditions monetary policy and economic activity change considerably as the economy moves from one phase of the business cycle to another and that single threshold tvar models are too restrictive to fully capture the nonlinear nature of those interactions the impact of most shocks tends to be largest during periods of sub par economic growth and smallest during times of moderate economic activity by contrast credit risk shocks have the largest impact when output growth is considerably above it long term trend

comparative statics and perfect foresight in infinite horizon economies does a pure exchange economy with an infinite time horizon have determinate perfect foresight equilibria when there is a finite number of infinitely lived agents equilibria are generically determinate this is not true with overlapping generations of finitely lived agents we ask whether the initial conditions together with the requirement of convergence to a steady state locally determine an equilibrium price path in this framework there are many economies with isolated equilibria many with continua of equilibria and many with no equilibria at all with two or more goods in every period not only can the price level be indeterminate but relative prices as well furthermore such indeterminacy can occur whether or not there is fiat money and whether or not the equilibria are pareto efficient this paper considers whether infinite horizon economies have determinate perfect foresight equilibria this question is of crucial importance if instead equilibria are locally indeterminate not only are we unable to make comparative static predictions but the agents in the model are unable to determine the consequences of unanticipated shocks the idea underlying perfect foresight is that agents expectations should be the actual future sequence predicted by the model if the model does not make determinate predictions the concept of perfect foresight is meaningless we consider two extreme cases the first with a finite number of infinitely lived consumers and the second with an infinite number of finitely lived consumers an overlapping generations model both are models of stationary pure exchange economies no production including the storage of goods between periods can occur these models are unrealistic but are the easiest to study extensions of the results of this paper to models with production infinitely lived assets and mixtures of the two types of consumers are presented by muller and woodford 29 when there is a finite number of infinitely lived consumers we argue that equilibria are generically determinate this is because the effective number of equations determining equilibria is not infinite but equal to the number of agents minus one and must determine the marginal utility of income for all but one agent generically near an equilibrium these equations are independent and exactly determine the unknowns when there are infinitely many overlapping generations this reasoning breaks down an infinite number of equations is not necessarily sufficient to determine

heads i win tails you lose a career analysis of executive pay and corporate performance the paper utilises a novel career perspective to examine managerial theories of organisational control in the context of executive reward principal agent theory managerial power and neo institutionalism are evaluated detailed career histories of boardroom executives in all ftse350 companies between 1996 and 2008 are utilised using both a fixed effects panel and a career based approach rival hypotheses are tested in addition to the payperformance relationship the probability of job loss as a function of performance is also estimated the evidence presented points to the importance of institutional considerations in the standard agency theory and managerial power perspectives and lends support to a social theory of agency the analysis is empirical in nature and an effort is made to draw on qualitative studies to further flesh out the discussion the practical implications of the findings point to the inadequacy of existing arrangements to deliver efficient pay outcomes where performance is poor whilst highlighting dangers of relying on naive policy remedies that ignore the role played by institutional forces in their implementation also highlighted is the distinct advantage of boards adopting a cumulative or career oriented approach when evaluating executive performance from a policy perspective the case is made for truly long term incentives in the form of career shares

understanding interdependence the macroeconomics of the open economy list of figureslist of tablesintroduction1the endogeneity of exchange rate regimes32exchange rate behavior under alternative exchange rate arrangements343panel one money for how many 844exchange rates prices and external adjustment in the united states and japan1075the dynamic optimizing approach to the current account theory and evidence1696international capital mobility in the 1990s2017a retrospective on the debt crisis2628trade liberalization in disinflation2919inflation and growth in an integrated approach31310panel the outlook for stabilization and reform in central and eastern europe36811international cooperation in the making of national macroeconomic policies where do we stand 39112the political economy of monetary union44813what do we need to know about the international monetary system 509conference participants531author index535subject index543

does best practice in setting executive pay in the uk encourage good behaviour we examine how uk listed companies set executive pay reviewing the implications of following best practice in corporate governance and examining how this can conflict with what shareholders and other stakeholders might perceive as good behaviour we do this by considering current governance regulation in the light of interviews with protagonists in the debate setting out the dilemmas faced by remuneration setters and showing how the processes they follow can lead to ethical conflicts

money banking and capital formation we consider a monetary growth model in which banks arise to provide liquidity in addition there is a government that issues not only money but interest bearing bonds these bonds compete with capital in private portfolios when the government fixes a constant growth rate for the money stock we show that there can exist multiple nontrivial monetary steady states one of these steady states is a saddle while the other can be a sink moreover paths approaching a steady state can display damped endogenous fluctuations and development trap phenomena are common across different steady states low capital stocks are associated with high nominal interest rates the latter signal the comparative inefficiency of the financial system also increases in the steady state inflation rate can easily reduce the steady state capital stock journal of economic literatureclassification numbers e13 e44 e50 g20 o16

are economic time series asymmetric over the business cycle it has long been argued that major cyclical variables such as the unemployment rate display an asymmetric behavior over various phases of the business cycle the paper provides a statistical test for this hypothesis using the framework of finite state markov processes i implement a test to see if the behavior of the unemployment rate is characterized by sudden jumps and slower drops it is argued that the framework provided in the paper can also be used to test other sample path properties of economic time series

application of distributive justice theory to the ceo pay problem recommendations for reform an ethical analysis of chief executive officer ceo salaries can be approached via theory on distributive justice and an examination of some corporate codes of ethics u s ceo salaries are compared with their japanese and european counterparts and factors behind the high u s ceo salaries are reviewed the negative repercussions of high pay are discussed including feelings of unfairness declining morale and greater cynicism found in lower level employees reduced research and development budgets and downsized organizations are related to the maintenance of high ceo salaries after considering economic repercussions recommendations for reform which lead to the greatest expected benefit of the least advantaged are made

volatile capital flows and financial integration the role of moral hazard abstract we study a model in which income and capital flows between countries are jointly determined in a world economy with integrated financial markets in a setting that combines risky entrepreneurial activity with moral hazard we find that a shift from autarky to financial integration leads to boom bust cycles in capital flows output and consumption moral hazard causes cycles because financial intermediaries incentivize effort by insisting entrepreneurs take an equity share in their own projects the size of this stake rises with wealth discouraging entrepreneurship and inhibiting capital formation the reverse is true when wealth falls generating cycles

a model of moral hazard credit cycles this paper considers a simple model of credit cycles driven by moral hazard in financial intermediation financial agents or bankers must earn moral hazard rents but the cost of these rents can be efficiently spread over an agent s entire career by promising large late career rewards if the agent has a consistently successful record dynamic interactions among different generations of financial agents can create credit cycles with repeated booms and recessions in recessions a scarcity of trusted financial intermediaries limits investment and reduces employment under such conditions taxing workers to subsidize bankers may increase employment enough to make the workers better off

do recessions permanently change output abstract this paper examines whether negative innovations to gnp are more or less persistent than positive innovations we find that once we allow for the impulse response of gnp to be asymmetric negative innovations to gnp are observed to be much less persistent than positive ones in particular the effect of a recession on the forecast of output is found to be negligible after only eight to twelve quarters while the effect of a positive shock is estimated to be persistent and amplified over time our results may therefore help reconcile two antagonistic views about the nature of business cycle fluctuations

how do changes in monetary policy affect bank lending an analysis of austrian bank data using a panel of austrian bank data we show that the lending decisions of the smallest banks are more sensitive to interest rate changes and that for all banks sensitivity changes over time we propose to estimate the groups of banks that display similar lending reactions by means of a group indicator which after estimation indicates each bank s classification additionally we estimate a state indicator that indicates the periods during which the lending reaction differs from what we normally observe bayesian methods are used for estimation a sensitivity analysis and a forecast evaluation confirm our model choice copyright 2006 john wiley sons ltd

effects of the us monetary policy shocks during financial crises a threshold vector autoregression approach abstractthis article analyzes the impact of monetary policy during periods of low and high financial stress in the us economy using a threshold vector autoregression model there is evidence that expansionary monetary policy is effective during periods of high financial stress with larger responses having a higher proportionate effect on output the existence of a cost channel effect during periods of high financial stress implies the existence of a short run output inflation trade off during financial crises large expansionary monetary shocks also increase the likelihood of moving the economy out of a high financial stress regime

chaotic dynamics in credit constrained emerging economies abstract this paper analyzes the role of financial development as a source of endogenous instability in small open economies by assuming that firms face credit constraints our model displays a complex dynamic behavior with high period cycles or even chaotic dynamic patterns for intermediate values of the parameter representing the level of financial development of the economy we derive sufficient conditions for global stability and we prove that chaos appears via a border collision bifurcation the basic implication of our model is that economies experiencing a process of financial development are more unstable than both very underdeveloped and very developed economies

cash flows and credit cycles aggregate productivity falls in recessions and rises in expansions several empirical studies suggest that the systematic behavior of lending standards with laxer tighter standards applied during expansions recessions is responsible for reverting trends in aggregate productivity we build a dynamic model that rationalizes these findings adverse selection in credit markets emerges as a potential source of macroeconomic instability the key idea modeled is that in order to effectively signal their type to financiers productive entrepreneurs must suffer a cost the effective cost of signaling rises with higher cash flow brought about by stronger economic fundamentals because higher cash flow makes it easier for the unproductive type to mimic the productive type competition among the financiers then results in suboptimally lax lending standards low productivity entrepreneurs obtain financing the producer composition effect inducing a recession this in turn creates conditions weak economic fundamentals and low cash flow conducive to the emergence of tighter lending terms the strong composition effect leading to an economic recovery

imperfectly competitive cycles with keynesian and walrasian features abstract we consider a multi sector overlapping generations model with oligopolistic firms in the output markets and wage setting trade unions in the labour markets a coordination problem between firms creates multiple temporary equilibria which are either walrasian or of the keynesian unemployment type there exist many deterministic and stochastic equilibrium cycles fluctuating between keynesian recession and walrasian boom periods with arbitrarily long phases in each regime the cycles are in accordance with certain empirical regularities money is neutral and superneutral but appropriate countercyclical fiscal policies stabilize the cycles in a textbook keynesian way

ceo stock option awards and the timing of corporate voluntary disclosures abstract we investigate whether ceos manage the timing of their voluntary disclosures around stock option awards we conjecture that ceos manage investors expectations around award dates by delaying good news and rushing forward bad news for a sample of 2 039 ceo option awards by 572 firms with fixed award schedules we document changes in share prices and analyst earnings forecasts around option awards that are consistent with our conjecture we also provide more direct evidence based on management earnings forecasts issued prior to award dates our findings suggest that ceos make opportunistic voluntary disclosure decisions that maximize their stock option compensation

financial development and the instability of open economies this paper introduces a framework for analyzing the role of financial factors as a source of instability in small open economies our basic model is a dynamic open economy model with a tradeable good produced with capital and a country specific factor we also assume that firms face credit constraints with the constraint being tighter at a lower level of financial development a basic implication of this model is that economies at an intermediate level of financial development are more unstable than either very developed or very underdeveloped economies this is true both in the sense that temporary shocks have large and persistent effects and also in the sense that these economies can exhibit cycles thus countries that are going through a phase of financial development may become more unstable in the short run similarly full capital account liberalization may destabilize the economy in economies at an intermediate level of financial development phases of growth with capital inflows are followed by collapse with capital outflows on the other hand foreign direct investment does not destabilize

credit traps and credit cycles we develop a simple macroeconomic model of credit market imperfections with heterogeneous investment projects the projects differ in productivity the investment requirement and the severity of agency problems behind the borrowing constraints a movement in borrower net worth shifts the composition of the credit between projects with different productivity levels thereby causing endogenous investment specific technological change furthermore such endogenous technological change in turn affects borrower net worth these composition effects could give rise to credit traps credit collapse leapfrogging credit cycles and growth miracles in the dynamics of the aggregate investment and borrower net worth jel e22 e44 o33

some consequences of credit rationing in an endogenous growth model an endogenous growth model is developed where all investment is financed via credit extension there is also an adverse selection problem in loan markets so that in equilibrium credit rationing arises endogenously the result is that equilibrium levels of credit rationing and real growth rates are jointly determined in this context several changes in the environment can have unusual consequences for instance improvements in the technology for producing capital can reduce growth because of their adverse impacts on credit rationing for similar reasons various government investment subsidies can be growth reducing this phenomenon is often observed empirically

agency costs in dynamic economic models we consider an overlapping generations economy where capital is produced from bank loans under stochastic constant returns to scale and subject to idiosyncratic shocks whose realisations are costly to verify our formulation differs from earlier work in permitting investment projects to be infinitely divisible and private agency costs to be convex if there are external economies to financial intermediation then deviations from steady state output are negatively correlated with the spread between loan and deposit rates moreover the capital stock correspondence is set valued a result consistent with poverty traps growth cycles and humpshaped impulse response functions this paper investigates how nonconvexities in financial intermediation particularly in the cost of collecting private information about borrowers enrich the operating characteristics of a simple and relatively tractable onesector growth model the enriched set of equilibria is consistent with a number of phenomena that are hard to reconcile with convex models of economic growth poverty traps rank reversals growth cycles and humpshaped impulse response functions are all possible outcomes of nonconvex information costs bankers and economists alike have long regarded the credit market as key to understanding economic development and to transmitting cyclical shocks through modern industrial economies the growth branch of this literature starts with gurley and shaw 1967 who note that economic growth is almost universally accompanied by financial deepening that is by more intensive use of external finance in investment and by a gradual lifting of distortions in the credit market the cyclical fluctuations branch of the literature focuses on the connection between credit market conditions and business cycles a key concern here is how the credit market propagates and amplifies external shocks through the entire economy the general idea dates back at least to keynes fisher and friedman and schwartz who argued that adverse conditions in financial markets may have exacerbated the effects of prewar recessions including the great depression greenwood and smith 1995 survey work on development among recent contributions we note bencivenga and smith 1991 who study the growth effects of financial intermediation in an overlapping generations model with uncertain liquidity needs intermediation enhances growth because banks are efficient providers of liquidity which frees individuals from the need to maintain low yielding liquid assets similar results are obtained in greenwood and jovanovic 1990 where intermediary institutions are shown to arise

stationary time varying risk premia in forward foreign exchange rates abstract there is mounting evidence that forward foreign exchange rates contain time varying risk premia however this evidence is from tests for which statistical inference is based on asymptotic distribution theory furthermore it is uncertain whether risk premia evolve as stationary or nonstationary processes this paper applies two exact small sample pointwise most powerful invariant statistical tests to determine 1 whether forward exchange rates contain time varying risk premia and 2 whether the time varying risk premia are stationary or nonstationary these tests finds strong evidence that forward exchange rates contain stationary time varying risk premia during the recent float evidence from the interwar float is mixed