the asset pricing effects of fixed holding costs an upper bound the capital asset pricing model predicts that investors will hold diversified portfolios but many households actually hold very few assets the paper examines the asset pricing implications of one possible explanation for this phenomenon fixed costs of holding assets while earlier authors found the exact asset pricing effects of such costs in single period models under restrictive assumptions i derive a general upper bound on these effects that is also valid in continuous time illustrative calculations reveal that large holding costs must be postulated to generate significant asset pricing effects

submarkets and the evolution of market structure we construct a model of industry evolution in which the central force for change is the creation and destruction of submarkets firms expand when they are able to exploit new opportunities that arrive in the form of submarkets they contract and ultimately exit when the submarkets in which they operate are destroyed this simple framework can transparently explain a wide range of well known regularities about industry dynamics most notably the subtle relationships between size age growth and survival data on the laser industry where submarkets are prominent further illustrate the ability of the model to explain distinctive patterns in the evolution of industries and firms

real exchange rate volatility and economic openness theory and evidence this paper relates the volatility of the trade weighted effective real exchange rate to the degree of trade openness of an economy the theoretical part presents an intertemporal monetary model of a small open economy with nominal rigidities both monetary and aggregate supply shocks are shown to produce ceteris paribus smaller real exchange rate movements if the country is more open to foreign trade empirical evidence on a cross section of forty eight countries confirms this relationship differences in trade openness explain a large part of the cross country variation in the volatility of the effective real exchange rate

martingales and arbitrage in securities markets with transaction costs abstract we derive the implications from the absence of arbitrage in dynamic securities markets with bid ask spreads the absence of arbitrage is equivalent to the existence of at least an equivalent probability measure that transforms some process between the bid and the ask price processes of traded securities into a martingale the martingale measures can be interpreted as possible linear pricing rules and can be used to determine the investment opportunities available in such an economy the minimum cost at which a contingent claim can be obtained through securities trading is its largest expected value with respect to the martingale measures journal of economic literature classification numbers g11 g12 g13 d52 and d90

taxes and transaction costs in asset market equilibrium abstract this paper examines the effects of capital taxation in an imperfect capital market in which acquiring risky assets incurs costs individual portfolio choice has two distinct aspects the extensive choice of which assets to hold in the portfolio and the intensive choice of what fraction of wealth to invest in each asset held the traditional assumption of zero transaction costs obscures the extensive choice this paper shows that if trading in assets is costly capital taxes have extensive effects as well as the intensive effects previously studied

the day after grant aid business development schemes for small rural firms in lagging areas of greece this paper investigates the need for providing follow up business development instruments to small rural businesses that have benefited from grant aid assistance schemes a sample of 76 small rural businesses in lagging areas of insular greece is included in the present survey and ranks thirteen possible business growth instruments it is found that business development instruments are ranked according to each firm s economic and human capital characteristics furthermore most firms need the concurrent provision of more than one instrument likewise a mixture of business specific schemes regulatory interventions and infrastructure projects better serves their business development needs results from the present survey indicate that an integrated business development strategy in lagging areas of greece should be supported by modern flexibly tailored combinations of assistance using complex multi instrument sets of support to development efforts

long forward and zero coupon rates can never fall in frictionless markets having no arbitrage the asymptotic zero coupon rate never falls the same is true of the long forward rate the long par coupon rate can rise and fall due to forward rate movements at short maturities this article relates the three types of interest rates and formalizes and proves the impossibility results for falling asymptotic rates these results can be tested in a parametric term structure specification that is rich enough to identify a time series of long rates the results show that it is not possible to specify arbitrarily the long forward or zero coupon rate process copyright 1996 by university of chicago press

real exchange rate fluctuations and the relative importance of nontradables abstract the real exchange rate is one of the most important price variables in macroeconomics as changes in it have implications for both external competitiveness as well as internal sectoral resource allocation this paper decomposes real exchange rate volatility into its two components for a panel of 51 economies over the period 1990 2010 and specifically estimates the relative importance of internal prices in real exchange rate fluctuations unlike other studies this paper goes a step further and examines the role of a set of economic fundamentals in explaining the relative contribution of the non traded component in real exchange rate fluctuations

financial market integration and macroeconomic volatility the process of financial market integration is modeled in an intertemporal general equilibrium framework as the elimination of trading frictions between financial markets in different countries goods markets are assumed to be imperfectly competitive and goods prices are subject to sluggish adjustment simulation experiments show that increasing financial market integration increases the volatility of a number of variables when shocks originate from the money market but decreases the volatility of most variables when shocks originate from real demand or supply copyright 1996 by the editors of the scandinavian journal of economics

one or more growth processes evidence from new italian firms the paper proposes a descriptive model of firm growth which assumes that learning processes are conditional on existing competencies of the firm and its founders we suggest the idea that firms who do not grow under all realizations of potentially profitable opportunities can be considered as zero learning in order to explain why some firms are zero learning and how these are different from growing ones we put forward and discuss the hypothesis that both start up size and founders pre entry history affect the firm s ability to adjust to market using a sample of 3 905 italian firms born in 1999 and 2000 we find that individual competencies influence start up size but not directly growth we also find a significant nonlinear relationship between start up size and growth implying that firms which were born smaller than a given size grow significantly less the results support the hypothesis that multiple and heterogeneous growth processes coexist and that the growth process of microfirms below a given organizational threshold may be structurally different in the long run from that of firms starting up above that threshold

the small the young and the productive determinants of manufacturing firm growth in ethiopia abstract this study examines the relationships between firm growth and firm size age and labor productivity using annual census based panel data on ethiopian manufacturing firms the study explicitly addresses the ongoing statistical concerns in firm growth models such as sample censoring regression to the mean and unobserved heterogeneity our empirical results indicate that firm growth decreases with size smaller firms have faster rates of growth than larger firms even after compensating for their higher attrition rates the negative relation between age and growth predicted by the learning model is found to apply only to younger firms labor productivity affects firm growth positively which indicates that there is a market selection process at work during the period of economic reforms in ethiopia

the relationship between firm growth size and age estimates for 100 manufacturing industries this study uses a sample of all firms operating in 100 manufacturing industries to examine some aspects of firm dynamics it finds that firm growth the variability of firm growth and the probability that a firm will fail decrease with firm age it also finds that firm growth decreases at a diminishing rate with firm size even after controlling for the exit of slow growing firms from the sample gibrat s law therefore fails although the severity of the failure decreases with firm size copyright 1987 by blackwell publishing ltd

real exchange rate and international reserves in an era of growing financial and trade integration abstract this paper evaluates the impact of international reserves terms of trade shocks and capital flows on the real exchange rate reer we observe that international reserves cushion the impact of terms of trade shocks on reer and that this effect is important for developing but not for industrial countries this buffer effect is especially significant for asian countries and for countries exporting natural resources financial depth reduces the buffer role of international reserves in developing countries developing countries reers seem to be more sensitive to changes in reserve assets whereas industrial countries display a significant relationship between hot money and reer

global capital flows and financing constraints firms often cite financing constraints as one of their primary obstacles to investment global capital flows by bringing in scarce capital may ease the financing constraints of host country firms but if incoming foreign investors borrow heavily from domestic banks foreign direct investment may exacerbate financing constraints by crowding host country firms out of domestic capital markets combining a unique cross country firm level panel with time series data on restrictions on international transactions and capital flows harrison love and mcmillan find that different measures of global flows are associated with a reduction in firm level financing constraints first the authors show that one type of capital inflow foreign direct investment is associated with a reduction in financing constraints second they test whether restrictions on international transactions affects the financing constraints of firms the results suggest that only one type of restriction those on capital account transactions negatively affects firms financing constraints the authors also show that multinational firms are not financially constrained and do not appear to be sensitive to the level of foreign direct investment this implies that foreign direct investment eases financing constraints for non multinational firms finally the authors show that 1 foreign direct investment only eases financing constraints in the non g7 countries and 2 other kinds of flows such as portfolio investment have no impact on financing constraints

simple binomial processes as diffusion approximations in financial models a binomial approximation to a diffusion is defined as computationally simple if the number of nodes grows at most linearly in the number of time intervals it is shown how to construct computationally simple binomial processes that converge weakly to commonly employed diffusions in financial models the convergence of the sequence of bond and european option prices from these processes to the corresponding values in the diffusion limit is also demonstrated numerical examples from the constant elasticity of variance stock price and the cox ingersoll and ross 1985 discount bond price are provided article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

the empirical implications of the cox ingersoll ross theory of the term structure of interest rates the one factor version of the cox ingersoll and ross model of the term structure is estimated using monthly quotes on u s treasury issues trading from 1952 through 1983 using data from a single yield curve it is possible to estimate implied short and long term zero coupon rates and the implied variance of changes in short rates analysis of residuals points to a probable neglected tax effect the term structure of interest rates is important to economists because the relationship among the yields on default free securities that differ in their term to maturity reflects the information available to the market about the future course of events the expectations hypothesis the liquidity preference hypothesis hicks 10 and the market segmentation hypothesis culbertson 6 are theories of the term structure that predict little more than that the implied forward rate is either equal to or not equal to the expectation of future spot rates cox ingersoll and ross 5 cir model the term structure of interest rates in a competitive equilibrium context their model has elements in common with the earlier hypotheses of the term structure however the cir model has a rich class of empirical implications not only for the pricing of default free securities but also for the pricing of bond options callable bonds and other types of financial claims this paper examines the extent to which the model in its simplest one factor form is descriptive of the prices of u s treasury bills bonds and notes traded from 1952 to 1983 section i describes the model and the parsimonious representation of bond prices which it implies section ii describes the data and section iii outlines the preliminary results obtained by fitting the model to observed data the final section outlines directions for future research

the long run volatility puzzle of the real exchange rate abstract this paper documents large cross country differences in the long run volatility of the real exchange rate it shows that the real exchange rate of developing countries is approximately three times more volatile than the real exchange rate in industrial countries the paper shows that this difference in volatility cannot be explained by the fact that developing countries face larger shocks both real and nominal recurrent currency crises or by different elasticities to these shocks arch estimations find a much higher persistence of deviations of the variance of the rer from its long run value when the economy suffers shocks of various kinds

transactions costs and portfolio choice in a discrete continuous time setting abstract this paper makes the following observation concerning a new formulation of the consumption and portfolio choice model of merton 1971 with transaction costs suppose an investor observes his or her current wealth only when making a transaction that transactions are costly and that decisions to transact can be made at any time based on all current information if at each transaction the agent is charged a fixed fraction of current portfolio value an optimal policy exists and the optimal interval of time between transactions is fixed independent of time and current wealth

rural manufacturing on the crest of the wave a count data analysis of technology use this study compares the extent of technology use by rural and urban manufacturing plants count data regression models explain technology use as a function of rural urban indicator variables plant characteristics and location characteristics the results show no difference in technology use due to rural urban location characteristics of nonmetro plants including size prevalency of branch plants and nature of production process tend to raise nonmetro manufacturing technology use lower nonmetro schooling levels an older labor force and mix of industries with low technology use tend to reduce technology use in nonmetro areas

arbitrage with fixed costs and interest rate models in this paper we study securities market models with fixed costs we characterize the absence of arbitrage opportunities and we provide fair pricing rules we then apply these results to extend some popular interest rate and option pricing models which present arbitrage opportunities in the absence of fixed costs in particular we prove that the quite striking result obtained by dybvig ingersoll and ross 1996 which asserts that under the assumption of absence of arbitrage long zero coupon rates can never fall is no longer true in models with fixed costs even arbitrarily small ones for instance models where the long term rate follows a diffusion process are arbitrage free in the presence of fixed costs including arbitrarily small ones we also rationalize models with partially absorbing or reflecting barriers on the price processes in particular we propose a version of the cox ingersoll and ross 1985 model which as in longstaff 1992 produces yield curves with realistic humps but does not assume an absorbing barrier for the short term rate this is made possible by the presence of even arbitrarily small fixed costs

term structure movements and pricing interest rate contingent claims this paper derives an arbitrage free interest rate movements model ar model this model takes the complete term structure as given and derives the subsequent stochastic movement of the term structure such that the movement is arbitrage free we then show that the ar model can be used to price interest rate contingent claims relative to the observed complete term structure of interest rates this paper also studies the behavior and the economics of the model our approach can be used to price a broad range of interest rate contingent claims including bond options and callable bonds

transaction costs and the pricing of assets the existence of transaction costs explains why investors do not fully diversify their portfolios this paper examines the implications of such limited diversification oi equilibrium asset prices in the framework of the capital asset pricing model in the pricing equation obtained here an asset s risk premium depends on a weighted average of its covariance with the market and its own variance the absence of transaction costs in the sharpe lintner capital asset pricing model capm is often claimed to be only a minor idealization which hardly affects the substantive implications of the model this paper aims to demonstrate that this is not the case incorporating transaction costs into the capm leads to a major reformulation of its basic asset pricing equation in contrast with the capm formula

entrepreneurial characteristics and the size of the new firm a model and an econometric test this paper examines entrepreneurial influences on the size of the new firm theory and previous empirical research indicate that the entrepreneurial attributes most likely to influence the characteristics and performance of new firms are motivation workskills and information the results of a regression analysis confirm these hypotheses when turnover and total assets are the dependent variables but are less conclusive when employment is the dependent variable possibly the most interesting finding is that the entrepreneurs who create the most jobs are those who are highly motivated have managerial skills and whose firms are in the manufacturing sector

commodity currencies and the real exchange rate abstract this paper examines whether the real exchange rates of commodity exporting countries and the real prices of their commodity exports move together over time using international monetary fund imf data on the world prices of 44 commodities and national commodity export shares we construct new monthly indices of national commodity export prices for 58 commodity exporting countries over 1980 2002 evidence of a long run relationship between national real exchange rate and real commodity prices is found for about one third of the commodity exporting countries the long run real exchange rate of these commodity currencies is not constant as would be implied by purchasing power parity based models but is time varying being dependent on movements in the real price of commodity exports

passive firm learning and employment projection error this paper analyzes establishment error in estimating employment targets in business startups and expansions passive firm learning models provide a testable hypothesis that other things being equal old establishments more accurately predict future employment targets than young businesses empirical evidence from 442 ohio establishments implies that an increase of ten years in establishment age is associated with a decrease in employment projection error rate of between 11 and 13 percentage points

entry and exit on the competitive fringe microeconomic theories of industry evolution reserve key roles for the entry and exit of firms competitive models of industry supply often assume that individual firms have ushaped long run average cost curves in consequence an industry s output adjustment in movement from one long run equilibrium to another is entirely accomplished through the entry and exit of firms rather than through changes in long run equilibrium output of individual firms in empirical applications the speed of movement to new equilibrium levels of output and price measured by the time it takes for profits to return to competitive levels following a demand shock clearly depends upon the ease of entry and exit however the simplest competitive models have a clear theoretical weakness abundant evidence against u shaped long run average cost curves precludes a simple identification of entry with industry expansion and exit with industry contraction expansion of industry supply can be met either by incumbents or entrants and we have little empirical evidence of the division entry conditions are also a staple of oligopoly and monopoly models potential entry constrains the pricing options open to industry leaders and actual entry of new firms and new products erodes at varying rates the market power of incumbent firms if actual entry responds rapidly to profit opportunities then the persistent exercise of monopoly power will be rare however analyses of monopoly and oligopoly models typically approach entry indirectly by inferring that persistent profit differentials reflect high barriers to entry there are few direct tests of the effects of such barriers on actual entry despite their importance very few empirical studies of entry and exit exist severe data limitations restrict both the number of studies and the scope of extant analyses the research reported in this paper provides measures of entry and exit in 46 food manufacturing industries during the 1976 82 period measures of incidence the number of firms as well as extent the size of firms are provided the analysis also distinguishes between diversified firms and specialist producers entry and exit rates vary considerably across industries and the paper reports the results of statistical analyses that account for industry differences in entry and exit rates by specialist firms

a theory of financing constraints and firm dynamics there is widespread evidence supporting the conjecture that borrowing constraints have important implications for firm growth and survival in this paper we model a multiperiod borrowing lending relationship with asymmetric information we show that borrowing constraints emerge as a feature of the optimal long term lending contract and that such constraints relax as the value of the borrower s claim to future cash flows increases we also show that the optimal contract has interesting implications for firm dynamics in agreement with the empirical evidence as age and size increase mean and variance of growth decrease and firm survival increases

when is gibrat s law a law the purpose of this article is to investigate if the industry context matters for whether gibrat s law is rejected or not using a dataset that consists of all limited firms in five digit nace industries in sweden during 1998 2004 the results reject gibrat s law on an aggregate level since small firms grow faster than large firms however gibrat s law is confirmed about as often as it is rejected when industry specific regressions are estimated it is also found that the industry context e g minimum efficient scale market concentration rate and number of young firms in the industry matters for whether gibrat s law is rejected or not

currency options hedging and social value in early september 1982 a conference on exchange rate determination organized by l klein and w krelle took place at the deutsche bundesbank in frankfurt at this conference i presented a paper currency options theory and practicability this paper gave formulas for the pricing and hedging of currency options and showed by means of ex post simulations their practicability examples were given of how to hedge dm options on either the spot bond or forward market cp sondermann 1985a at that time markets for currency options did not yet exist but i was convinced that these markets would soon emerge since i the theory for pricing and hedging of currency options was now available ii the computational facilities were available and most importantly iii currency options do have a social value the stormy development of these markets which started soon after has proved this expectation correct that currency options have a social value has been questioned both on practical and theoretical grounds the first type of arguments stress the speculative element of such options and refer to the forward exchange markets as the approved means of hedging against foreign exchange risks this view overlooks the fact that only future currency streams which are expected with certainty can be hedged on forward markets if for some reason these future payments fail to realize or deviate from their expected value the hedger on the forward market may end up with a costly open position this may e g be the case in a tender situation currency options as a non redundant alternative to forward markets allow for a better allocation of exchange risks the social value of currency options is

real exchange rate volatility terms of trade shocks and financial integration in primary commodity exporting economies using a panel of 53 primary commodity exporting countries we show that greater international financial integration reduces the impact of terms of trade shocks on real exchange rate volatility this reduction is larger when we define financial integration as foreign direct investment

financial openness and business cycle volatility abstract this paper discusses whether the integration of international financial markets affects business cycle volatility in the framework of a new open economy macro model we show that the link between financial openness and business cycle volatility depends on the nature of the underlying shock empirical evidence supports this conclusion our results also show that the link between business cycle volatility and financial openness has not been stable over time

do multinationals deteriorate developing countries export prices the impact of fdi on net barter terms of trade this paper explores the economic relationship between foreign direct investment fdi to developing countries and the export prices of the latter measured by terms of trade it is rst shown that economic theory suggests such a relationship for various reasons but is inconclusive about the direction of the eect to address this open issue empirically i analyze data on more than 50 developing countries throughout the period 1980 2008 using robust dynamic panel data methods the results show that fdi had an economically relevant and statistically signicant positive impact on developing countries net barter terms of trade a higher level of education in the developing country fosters this eect

optimal lending contracts and firm dynamics we develop a general model of lending in the presence of endogenous borrowing constraints borrowing constraints arise because borrowers face limited liability and debt repayment cannot be perfectly enforced in the model the dynamics of debt are closely linked with the dynamics of borrowing constraints in fact borrowing constraints must satisfy a dynamic consistency requirement the value of outstanding debt restricts current access to short term capital but is itself determined by future access to credit this dynamic consistency is not guaranteed in models of exogenous borrowing constraints where the ability to raise short term capital is limited by some prespecified function of debt we characterize the optimal default free contract which minimizes borrowing constraints at all histories and derive implications for firm growth survival leverage and debt maturity the model is qualitatively consistent with stylized facts on the growth and survival of firms comparative statics with respect to technology and default constraints are derived borrowing constraints are an important determinant of firm growth and survival 1 such constraints may arise in connection to the financing of investment opportunities faced by firms or temporary liquidity needs such as those required to survive a recession this paper develops a theory of endogenous borrowing constraints and studies its implications for firm dynamics in our model debt is constrained by the firm s limited liability and option to default a lending contract specifies an initial loan size future financing and a repayment schedule the choice of these variables in turn determines future growth the firm s future borrowing capacity and its ability and willingness to repay hence borrowing constraints and firm dynamics are jointly determined we study this dynamic design problem our model builds on thomas and worral s 1994 model of foreign direct investment at time zero a risk neutral borrower firm or entrepreneur has a project which requires a fixed initial set up cost every period the project yields revenues that increase with the amount of 1 there is considerable evidence suggesting that financing constraints are important determinants of firm dynamics gertler and gilchrist 1994 argue that liquidity constraints may explain why small manufacturing firms respond more to a tightening of monetary policy than do larger manufacturing firms perez quiros and timmermann 2000 show that in recessions smaller firms are more sensitive to the worsening of credit market conditions as measured by higher interest rates and default premia evans and jovanovic 1989 show that the liquidity constraints are essential in the decision to become an entrepreneur fazzari hubbard and petersen 1988 among others view financial constraints as an explanation for the dynamic behaviour of aggregate investment and cabral and mata 1996 are able to fit reasonably well the size distribution of portuguese manufacturing firms by estimating a simple model of financing constraints for surveys see hubbard 1998 and stein 2003

the location of markets perceived entrepreneurial risk and start up capital of micro rural firms it is argued that when founders of smes perceive the probability of a successful and lucrative venture to be greater they are more likely to provide a greater proportion of the start up capital this paper provides an empirical examination of two concurrent hypotheses firstly that the size of the debt or equity is affected by factors influencing perceived entrepreneurial risk secondly that the location of the market for the firm s output is a major factor reducing perceived entrepreneurial risk and increasing equity of the start up capital a statistical analysis based on the simultaneous tobit model is used results show that significant factors influencing risk perception include the size of the new business and the sector of economic activity as well as entrepreneurial experience and the location of the markets for the firm s output the results highlight implications for the design and implementation of rural development policies and especially for the instruments supporting rural business creation

the case of the negative nominal interest rates new estimates of the term structure of interest rates during the great depression throughout the 1930s and early 1940s u s treasury bonds and notes appeared to have negative nominal yields as they approached maturity but negative nominal interest rates are impossible in a world in which one can always hold cash the resolution to this puzzle is that treasury securities in addition to making coupon payments gave the owner the right to buy a new security on a future date this paper describes the institutional environment that led to the apparent negative nominal interest rates develops a method for valuing the exchange privilege and computes accurate measures of the yield to the coupon bearing component of these composite bond options these corrected bond and not yields are then used to calculate new estimates of the term structure of interest rates from 1929 to 1949

the modern history of exchange rate arrangements a reinterpretation we develop a novel system of reclassifying historical exchange rate regimes one key difference between our study and previous classifications is that we employ monthly data on market determined parallel exchange rates going back to 1946 for 153 countries our approach differs from the imf official classification which we show to be only a little better than random it also differs radically from all previous attempts at historical reclassification our classification points to a rethinking of economic performance under alternative exchange rate regimes indeed the breakup of bretton woods had less impact on exchange rate regimes than is popularly believed