time out of work and skill depreciation this paper investigates the role of skill depreciation in the relationship between work interruptions and subsequent wages using swedish data from two waves 1994 and 1998 of the international adult literacy survey which included results of tests gauging respondents ability to read and make practical use of printed information the authors are able to analyze changes in individuals skills as a function of time out of work they find statistically strong evidence of a negative relationship between work interruptions and skills the analysis suggests that depreciation of general skills was economically important a full year of non employment for example was associated with a 5 percentile move down the skill distribution

finance and the sources of growth at various stages of economic development this article studies the effects of financial development on the sources of growth in different groups of countries recent theoretical work shows that financial development may affect productivity and capital accumulation in different ways in industrial versus developing countries this hypothesis is tested with panel data from 74 countries using gmm dynamic panel techniques results are consistent with the hypothesis finance has a strong positive influence on productivity growth primarily in more developed economies in less developed economies the effect of finance on output growth occurs primarily through capital accumulation jel o4 g1

financial development and financing constraints international evidence from the structural investment model this article provides evidence that financial development impacts growth by reducing financing constraints that would otherwise distort efficient allocation of investment the financing constraints are inferred from the investment euler equation by assuming that the firm s stochastic discount factor is a function of the firm s financial position specifically the stock of liquid assets the magnitude of the changes in the cost of capital is twice as large in a country with a low level of financial development as in a country with an average level of financial development the size effect business cycles and legal environment effects are also considered copyright 2003 oxford university press

industry growth and capital allocation does having a market or bank based system matter are market based or bank based financial systems better at financing the expansion of industries that depend heavily on external finance facilitating the formation of new establishments and improving the efficiency of capital allocation across industries we find evidence for neither the market based nor the bank based hypothesis while legal system efficiency and overall financial development boost industry growth new establishment formation and efficient capital allocation having a bank based or market based system per se does not seem to matter much

firm size and the nature of innovation within industries the case of process and product r d the effect of firm size on the allocation of r d effort between process and product innovation is examined it is hypothesized that relative to product innovations process innovations are less saleable in disembodied form and spawn less growth this implies that the returns to process r d will depend more on the firm s output at the time it conducts its r d than the returns to product r d incorporating this distinction in a simple model the authors derive and test predictions about how the fraction of r d devoted to process innovation varies with firm size within industries

institutional markets financial marketing and financial innovation firms and institutions are monitored and controlled through a complex set of implicit and explicit contractual relations because of these agency theoretic relations institu tional behavior in financial markets is not a simple reflection of the preference structures of individuals institutional preferences give rise to a demand for new financial instru ments and innovations even when the returns on these instruments are spanned in the sense of complete pricing the innovations can be thought of as solving moral hazard problems an agency theoretic example serves to illustrate the demand supply and financial marketing of stripped securities in short institutions matter the past two decades have witnessed an explosion of financial innovations the changes are too varied and diffuse to permit an easy taxonomy but broadly they seem to fall into two classes first there are the new securities and their markets beginning with puts and calls we have moved on to euromarkets mortgage pass throughs and cmo s strips straps and swaps putable converti bles primes and scores and s p futures and all of the other instruments that inhibit the financial zoo second there are the dynamic trading strategies that make heavy use of the new instruments basket and program trading the asset pricing theories that now characterize different types of money management and the various incarnations of portfolio insurance have changed financial decision making as dramatically as the available array of instruments has changed along with these changes has come an enormous increase in the demand for the services of financial economists we are called upon not only to value the new instruments and the new strategies but to design them as well like engineers

a theory of wage dynamics a dynamic equilibrium model of long term implicit labour contracts under incomplete but symmetric information is developed workers are assumed to be risk averse and of unknown ability or productivity risk neutral firms learn as do workers about each worker s productivity by observing the worker s output over time it is shown that equilibrium contracts provide for wages which never decline with age and increase only when the worker s market value increases above his current wage in addition to characterizing the equilibrium wage contract we also derive some of its implications for the behaviour of aggregate wages across various groups of workers these implications explain some findings in the recent empirical literature on ageearnings profiles in particular our model can explain why earnings may be positively related to experience even after controlling for productivity as some empirical studies have indicated

retraining and long term unemployment in a model of unlearning by not doing this paper develops a dynamically consistent model of search matching and bargaining when worker skills decline while unemployed long term unemployment emerges as an endogenous phenomenon even with constant returns to matching multiple pareto rankable equilibria are possible policies to address long term unemployment are best directed toward prevention e g vacancy creation subsidies rather than cure e g retraining subsidies

do banks affect the level and composition of industrial volatility in theory better access to bank credit can reduce or increase output volatility depending on whether firms are more financially constrained during contractions or expansions this paper finds that the volatility of industrial output is lower in countries with more bank credit most of the reduction in volatility is idiosyncratic which follows from the ability of banks to pool and diversify shocks systematic volatility is reduced less strongly volatility dampening is achieved via countercyclical borrowing at the firm level short term borrowing is less or more negatively correlated with sales and inventories in countries with high levels of bank credit

a formulation of the earnings function using the concept of occupational investment standard models of income determination specify income to be a function of two variables that measure postschool investment the years of labor market experience and the years of employer tenure this investigation develops a better proxy for general human capital investments by hypothesizing that the intensity of investment varies by occupation and that a proportion of the occupational skills are transferable with occupational change after developing exogenous measures of these features the occupational investment variable is calculated for the young men of the national longitudinal survey empirical work demonstrates that occupational investment is a strong determinant of income far superior to the experience variable

banking scope and financial innovation we explore the implications of financial system design for financial innovation we begin with assumptions about the investment opportunities of firms their observable attributes and the roles of commercial banks investment banks and the financial market we examine the borrower s choice between bank and financial market funding the commercial bank s choice of monitoring capacity and the investment bank s choice of whether to invest in financial innovation our main result is that financial innovation in a universal banking system is stochastically lower than innovation in a financial system in which commercial and investment banks are functionally separated article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

financial dependence and growth revisited we revisit an earlier highly influential paper on financial dependence and growth by rajan and zingales 1998 we re examine their assumptions and the robustness of their results to alternative theories and interpretations we first show that they may be implicitly testing whether financial intermediaries allow firms to better respond to global shocks to growth opportunities rather than the extent that financial intermediaries allow firms to grow in industries with an inherent technological financial dependence we propose a more direct measure of growth opportunities if u s capital markets are perfect then actual growth in the u s is a good proxy for global growth opportunities we test this directly by including u s industry growth in rajan and zingales s original specification and find that our direct growth measure outperforms their financial dependence measure and is less vulnerable to controlling for outliers and level of development this still suggests an important role for finance in the allocation of resources but shifts the emphasis from financial dependence to global growth opportunities jel f3 g1 o4

optimal unemployment insurance with human capital depreciation and duration dependence this paper studies the effect of human capital depreciation and duration dependence on the design of an optimal unemployment insurance ui scheme our results partially confirm those obtained in most previous studies benefits should decrease with unemployment duration the optimal program also generates two main novel features which are not present in stationary models first if human capital depreciates rapidly enough during unemployment ui transfers are bounded below by a minimal assistance level that arises endogenously in the efficient program second we study the optimality of imposing a history contingent wage tax after reemployment our numerical simulations based on the spanish and us economies show that the wage tax should decrease with the length of worker s previous unemployment spell and become a wage subsidy for long term unemployed workers as a by product of our study we develop a systematic approach suitable for studying recursively a wide range of dynamic moral hazard problems and other models with similar characteristics

financial innovation the last twenty years and the next the word revolution is entirely appropriate for describing the changes in financial institu tions and instruments that have occurred in the past twenty years the major impulses to successful financial innovations have come from regulations and taxes the outlook for the future is for a slowing down of the rate of financial innovation but much growth and improvement are still in prospect

a new database on the structure and development of the financial sector this article introduces a new database of indicators of financial structure and financial development across countries and over time the database is unique in that it combines a wide variety of indicators that measure the size activity and efficiency of financial intermediaries and markets it improves on previous efforts by presenting data on the public share of commercial banks introducing indicators of the size and activity of nonbank financial institutions and constructing measures of the size of bond and primary equity markets this article introduces a new database the first to provide comprehensive measures of the development structure and performance of the financial sector this database is the first to define and construct indicators of the size and activity of nonbank financial intermediaries such as insurance companies pension funds and non deposit money banks it is also the first to include indicators of the size of primary equity markets and primary and secondary bond markets in constructing the database authors carefully deflate measures and match stock and flow variables

financial development growth and the distribution of income a paradigm is presented in which both the extent of financial intermediation and the rate of economic growth are endogenously determined financial intermediation promotes growth because it allows a higher rate of return to be earned on capital and growth in turn provides the means to implement costly financial structures thus financial intermediation and economic growth are inextricably linked in accord with the goldsmith mckinnon shaw view on economic development the model also generates a development cycle reminiscent of the kuznet hypothesis in particular in the transition from a primitive slow growing economy to a developed fast growing one a nation passes through a stage in which the distribution of wealth across the rich and poor widens

duration dependence and labor market conditions evidence from a field experiment this article studies the role of employer behavior in generating negative duration dependence the adverse effect of a longer unemployment spell by sending fictitious resumes to real job postings in 100 u s cities our results indicate that the likelihood of receiving a callback for an interview significantly decreases with the length of a worker s unemployment spell with the majority of this decline occurring during the first eight months we explore how this effect varies with local labor market conditions and find that duration de pendence is stronger when the local labor market is tighter this result is consistent with the prediction of a broad class of screening models in which employers use the unemployment spell length as a signal of unobserved productivity and recognize that this signal is less informative in weak labor markets jel code j64

turbulence and unemployment in a job matching model according to ljungqvist and sargent 1998 high european unemployment since the 1980s can be explained by a rise in economic turbulence leading to greater numbers of unemployed workers with obsolete skills these workers refuse new jobs due to high unemployment benefits in this paper we reassess the turbulence unemployment relationship using a matching model with endogenous job destruction in our model higher turbulence reduces the incentives of employed workers to leave their jobs if turbulence has only a tiny effect on the skills of workers experiencing endogenous separation then the results of ljungqvist and sargent 1998 2004 are reversed and higher turbulence leads to a reduction in unemployment thus changes in turbulence cannot provide an explanation for european unemployment that reconciles the incentives of both unemployed and employed workers jel e24 j64

the unemployment volatility puzzle is wage stickiness the answer i discuss the failure of the canonical search and matching model to match the cyclical volatility in the job finding rate i show that job creation in the model is influenced by wages in new matches i summarize microeconometric evidence and find that wages in new matches are volatile and consistent with the model s key predictions therefore explanations of the unemployment volatility puzzle have to preserve the cyclical volatility of wages i discuss a modification of the model based on fixed matching costs that can increase cyclical unemployment volatility and is consistent with wage flexibility in new matches

human capital accumulation and labor market equilibrium the objective of this paper is to analyse an equilibrium search model with on the job search and human capital accumulation in our model wages are disperse because firms pay workers of the same productivity different wages and workers of different productivies earn different wages new entrants to the labour market increase their wages mainly through on the job search as workers gain more experience and move up the offer distribution job to job transitions become less frequent and human capital accumulation dominates wage growth this interaction generates a wage distribution that exhibits a density with a unique mode and a long and decreasing right tail as observed in the data

the cost of job loss this article identifies an equilibrium theory of wage formation and endogenous quit turnover in a labour market with on the job search where risk averse workers accumulate human capital through learning by doing and lose skills while unemployed optimal contracting implies the wage paid increases with experience and tenure indirect inference using german data determines the deep parameters of the model the estimated model not only reproduces the large and persistent fall in wages and earnings following job loss a new structural decomposition finds foregone human capital accumulation while unemployed is the worker s major cost of job loss

understanding european unemployment with matching and search island models abstract to understand european and american unemployment during the last 60 years we use a search island model and four matching models with workers who have heterogeneous skills and entitlements to government benefits when there is higher turbulence in the sense of worse skill transition probabilities for workers who suffer involuntary layoffs high government mandated unemployment insurance ui and employment protection ep in europe increase unemployment rates and durations but when there is lower turbulence high european ep suppresses unemployment rates despite high european ui four matching models differ in how they assign unemployed workers to matching functions that affects how strongly unemployment responds to increases in turbulence heterogeneity among unemployed workers highlights the central role of adverse labor market externalities in matching models and reveals that the cost of posting vacancies is the lynchpin of a matching model

occupational mobility and wage inequality in this article we argue that wage inequality and occupational mobility are intimately related we are motivated by our empirical findings that human capital is occupation specific and that the fraction of workers switching occupations in the u s was as high as 16 a year in the early 1970 s and had increased to 21 by the mid 1990 s we develop a general equilibrium model with occupation specific human capital and heterogeneous experience levels within occupations we find that the model calibrated to match the level of occupational mobility in the 1970 s accounts quite well for the level of within group wage inequality in that period next we find that the model calibrated to match the increase in occupational mobility accounts for over 90 of the increase in wage inequality between the 1970 s and the 1990 s the theory is also quantitatively consistent with the level and increase in the short term variability of earnings copyright wiley blackwell

two questions about european unemployment a general equilibrium search model makes layoff costs affect the aggregate unemployment rate in ways that depend on equilibrium proportions of frictional and structural unemployment that in turn depend on the generosity of government unemployment benefits and skill losses among newly displaced workers the model explains how before the 1970s lower flows into unemployment gave europe lower unemployment rates than the united states and also how after 1980 higher durations have kept unemployment rates in europe persistently higher than in the united states these outcomes arise from the way europe s higher firing costs and more generous unemployment compensation make its unemployment rate respond to bigger skill losses among newly displaced workers those bigger skill losses also explain why u s workers have experienced more earnings volatility since 1980 and why especially among older workers hazard rates of gaining employment in europe now fall sharply with increases in the duration of unemployment

ceo compensation and bank risk is compensation in banking structured to promote risk taking abstract this paper examines whether executive compensation in banking is structured to promote risk taking we find that on average bank ceos receive less cash compensation are less likely to participate in a stock option plan hold fewer stock options and receive a smaller percentage of their total compensation in the form of options and stock than do ceos in other industries cross sectional differences in the structure of compensation contracts within banking are also examined we find a positive and significant relation between the importance of equity based incentives and the value of the bank s charter this result is inconsistent with the hypothesis that compensation policies promote risk taking in banking

ranking unemployment duration and wages it explores the implication of one central assumption when firms receive multiple acceptable applications they hire the worker who has been unemployed for the least amount of time this assumption ranking is contrasted with the assumption of random hiring no ranking by embodying this assumption in a model of the labour market with job creation destruction and matching the joint behaviour of unemployment the distribution of unemployment durations and wages are characterized the implication that the re employment prospects of employed workers were they to become unemployed are better than those of the currently unemployed appears to have been an important feature of european unemployment experience in the 1980 s this paper examines the effects of the composition of unemployment on wage determination it explores one central assumption when firms receive multiple acceptable applications they hire the worker who has been unemployed for the least amount of time we refer to this assumption as ranking and contrast it throughout to the assumption of random hiring or no ranking by embodying this assumption in a model of the labour market with job creation destruction and matching we characterize the joint behaviour of unemployment the distribution of unemployment durations and wages ranking has a number of important implications first in addition to the obvious result that the exit rate from unemployment is a decreasing function of duration we show that the effect of duration is stronger the higher the rate of unemployment second with the wage depending on the distributions of prospective unemployment durations the presence of long term unemployed per se has little effect on wages third looking at the relation between the wage and the aggregate level of unemployment and comparing ranking to the case of no ranking the wage moves less with the level of unemployment but more with the change in unemployment put simply ranking and no ranking models show exactly the same aggregate unemployment slightly different long run responses of wages to unemployment and sharply different wage dynamics the paper is organized as follows section i characterizes the matching process and derives a matching function based on an urn ball process with vacancies as urns and applications by unemployed workers as balls thus the distribution of applications per vacancy depends on aggregate unemployment and vacancies vacancies with at least one acceptable application are filled when a vacancy receives more than one acceptable application firms use a rule to choose among applicants thus the rule determines who is hired but does not affect the number of hires section ii uses this matching function in a model of the labour market with continual job creation and destruction and characterizes the equilibrium values of unemployment vacancies and hires

financial intermediary development and growth volatility do intermediaries dampen or magnify shocks the authors extend the recent literature on the link between financial development and economic volatility by focusing on the channels through which the development of financial intermediaries affects economic volatility their theoretical model predicts that well developed financial intermediaries dampen the effect of real sector shocks on the volatility of growth while magnifying the effect of monetary shocks suggesting that overall financial intermediaries have no unambiguous effect on growth volatility the authors test these predictions in a panel data set covering 63 countries over the period 1960 97 using the volatility of terms of trade to proxy for real volatility and the volatility of inflation to proxy for monetary volatility they find no robust relationship between the development of financial intermediaries and growth volatility weak evidence that financial intermediaries dampen the effect of terms of trade volatility and evidence that financial intermediaries magnify the impact of inflation volatility in low and middle income countries

growth volatility and financial liberalization we examine the effects of both equity market liberalization and capital account openness on real consumption growth variability we show that financial liberalization is mostly associated with lower consumption growth volatility our results are robust surviving controls for business cycle effects economic and financial development the quality of institutions and other variables countries that have more open capital accounts experience a greater reduction in consumption growth volatility after equity market openings we also find that financial liberalizations are associated with declines in the ratio of consumption growth volatility to gdp growth volatility suggesting improved risk sharing our results are weaker for liberalizing emerging markets but we never observe a significant increase in real volatility moreover we demonstrate significant differences in the volatility response depending on the size of the banking and government sectors and certain institutional factors

reassessing the law finance and growth nexus after the recent great recession abstract the paper provides a reassessment of the relationship between financial structure financial development and economic growth conducting cross section and panel econometric analyses for a sample of 62 countries over 1980 2016 in line with the traditional literature we confirm the existence of a positive cross country relationship between the legal system financial development and growth even including the experience of the recent great recession in addition when jointly assessing the effect of financial structure and financial development on growth it emerges that a more bank oriented economy enjoys higher benefits in terms of long run real gdp per capita growth than a market oriented one when we consider variations across countries and over time we find that both financial structure and financial development affect growth but in an opposite way as the cross section analysis in particular when we control for their joint effect on growth we observe a positive impact of market based financial systems and a negative impact of the overall financial development we also provide evidence of the existence of a positive and significant relationship between economic growth and shadow banking during the 2002 2016 period highlighting the crucial role played by non bank financial intermediation in complementing traditional banking and in affecting the real economy

unemployment history and frictional wage dispersion abstract recent evidence shows that baseline search models struggle to match the observed levels of wage dispersion this paper studies a random matching search model with human capital losses during unemployment wage dispersion increases as workers accept lower wages to avoid long unemployment spells the model explains between a third and half of the observed residual wage dispersion when adding on the job search the model accounts for all of the residual wage dispersion and generates substantial dispersion even for high values of non market time the paper thus addresses the trade off between explaining frictional wage dispersion and the cyclical behavior of unemployment

financial development and the occurrence of banking crises abstract we perform an in depth analysis of the effect of different dimensions of financial development on the occurrence of banking crises horse race estimations carried out on a large dataset of 113 banking crises in 112 countries reveal that the growth of m3 gdp and the level of banks credits deposits increase the occurrence of banking crises while the growth and sometimes the volatility of the ratio of banks assets to the sum of banks and the central bank s assets decrease it in addition we do not find a significant effect of banks credits gdp finally we unveil heterogeneities related to nonlinearities in the effect of financial development the time span for the pre crisis dynamics of financial development and the level of economic development our results suggest that only some dimensions of financial development are significantly associated with the occurrence of banking crises

optimal welfare to work programs a welfare to work wtw program is a mix of government expenditures on various labour market policies targeted to the unemployed e g unemployment insurance m job search monitoring m social assistance sa wage subsidies this paper provides a dynamic principal agent framework suitable for analysing chief features of an optimal wtw program such as the sequence and duration of the different policies the dynamic pattern of payments along the unemployment spell and the emergence of taxes subsidies upon re employment the optimal program endogenously generates an absorbing policy of last resort social assistance characterized by a constant lifetime payment and no active participation by the agent human capital depreciation is a necessary condition for policy transitions to be part of an optimal wtw program the typical sequence of policies is quite simple the program starts with standard ui then switches into monitored search and finally into sa the optimal benefits are decreasing during unemployment insurance and constant during both jm and sa whereas taxes subsidies can be either increasing or decreasing with duration during ui they must decrease increase during a phase of jm in a calibration exercise we use our model to analyse quantitatively the features of the optimal program for the u s economy with respect to the existing u s system the optimal wtw scheme delivers sizeable welfare gains to unskilled workers because the incentives to search for a job can be retained even while delivering more insurance and using costly monitoring less intensively

financial development financial fragility and growth the authors study the apparent contradiction between two strands of the literature on the effects of financial intermediation on economic activity on the one hand the empirical growth literature finds a positive effect of financial depth as measured by for instance private domestic credit and liquid liabilities for example levine loayza and beck 2000 on the other hand the banking and currency crisis literature finds that monetary aggregates such as domestic credit are among the best predictors of crises and their related economic downturns for example kaminski and reinhart 1999 the authors account for these contrasting effects based on the distinction between the short and long run impacts of financial intermediation working with a panel of cross country and time series observations they estimate an encompassing model of short and long run effects using the pooled mean group estimator developed by pesaran shin and smith 1999 their conclusion from this analysis is that a positive long run relationship between financial intermediation and output growth coexists with a mostly negative short run relationship the authors further develop an explanation for these contrasting effects by relating them to recent theoretical models by linking the estimated short run effects to measures of financial fragility namely banking crises and financial volatility and by jointly analyzing the effects of financial depth and fragility in classic panel growth regressions

frictional wage dispersion in search models a quantitative assessment we propose a new measure of frictional wage dispersion the mean min wage ratio for a large class of search models we show that this measure is independent of the wage offer distribution but depends on statistics of labor market turnover and on preferences under plausible preference parameterizations observed magnitudes for worker flows imply that in the basic search model and in most of its extensions frictional wage dispersion is very small notable exceptions are some of the most recent models of on the job search our new measure allows us to rationalize the diverse empirical findings in the large literature estimating structural search models

the value of risk measuring the service output of u s commercial banks rather than charging direct fees banks often charge implicitly for their services via interest spreads as a result much of bank output has to be estimated indirectly in contrast to current statistical practice dynamic optimizing models of banks argue that compensation for bearing systematic risk is not part of bank output we apply these models and find that between 1997 and 2007 in the u s national accounts on average bank output is overestimated by 21 percent and gdp is overestimated by 0 3 percent moreover compared with current methods our new estimates imply more plausible estimates of the share of capital in income and the return on fixed capital

wage tenure contracts in a frictional labour market firms strategies for recruitment and retention a common assumption in equilibrium search and matching models of the labour market is that each firm posts a wage to be paid to any worker hired this paper considers the implications of firms posting contracts in a random matching model with on the job search more complex contracts enable firms to address both recruitment and retention problems by for example increasing the wage with tenure the effect on the labour market is to reduce turnover below the level required for efficient matching of workers to firms copyright 2004 wiley blackwell

monetary policy as financial stability regulation this paper develops a model that speaks to the goals and methods of financialstability policies there are three main points first from a normative perspective the model defines the fundamental market failure to be addressed namely that unregulated private money creation can lead to an externality in which intermediaries issue too much short term debt and leave the system excessively vulnerable to costly financial crises second it shows how in a simple economy where commercial banks are the only lenders conventional monetary policy tools such as open market operations can be used to regulate this externality while in more advanced economies it may be helpful to supplement monetary policy with other measures third from a positive perspective the model provides an account of how monetary policy can influence bank lending and real activity even in a world where prices adjust frictionlessly and there are other transactions media besides bank created money that are outside the control of the central bank

financial innovation the bright and the dark sides based on data from 32 countries over the period 1996 2010 this paper is the first to assess the relationship between financial innovation on the one hand and bank growth and fragility as well as economic growth on the other hand we find that different measures of financial innovation capturing both a broad concept and specific innovations are associated with faster bank growth but also higher bank fragility and worse bank performance during the recent crisis these effects are stronger in countries with larger securities markets and more restrictive regulatory frameworks in spite of these seemingly ambiguous findings our evidence points to a positive net effect of financial innovation on economic growth financial innovation is associated with higher growth in countries and industries with better growth opportunities

the adoption of intensive monocrop horticulture in southern cameroon abstract results from a 1997 survey of 208 households in the humid forest zone of southern cameroon indicate that african policy makers seeking to intensify agricultural production should focus attention on the horticultural sub sector the survey which gathered information on horticultural production practices found that the average expenditure on agro chemical inputs by horticultural producers using monocrop production systems was 190 us ha which greatly exceeds the fao reported national average expenditure of 6 50 us ha a logit model of monocrop adoption indicated that the size of land holding per household had a negative effect on adoption congruent with population driven technical change and that increases in unit transportation costs significantly decreased the probability of adoption these findings suggest that policy makers should target horticultural intensification in areas of higher population density and promote investment in rural roads the age of the household head had a significant negative and elastic effect on adoption which in combination with an increase in the cohort of younger farmers in the rural population induced by macro economic events contributed to the spread of intensified horticulture in the study area roughly two thirds of rural households also produce cocoa and the quantity of cocoa produced was positively associated with adoption of intensive horticultural systems suggesting that export crop promotion indirectly facilitated diversification of agriculture women s participation in intensive monocrop production was limited and efforts to promote their greater involvement are recommended

on the job search and strategic bargaining abstract this paper studies wage bargaining in a simple economy in which both employed and unemployed workers search for better jobs the axiomatic nash bargaining solution and standard strategic bargaining solutions are inapplicable because the set of feasible payoffs is nonconvex i instead develop a strategic model of wage bargaining between a single worker and firm that is applicable to such an environment i show that if workers and firms are homogeneous there are market equilibria with a continuous wage distribution in which identical firms bargain to different wages each of which is a subgame perfect equilibrium of the bargaining game if firms are heterogeneous i characterize market equilibria in which more productive firms pay higher wages i compare the quantitative predictions of this model with burdett and mortensen s 1998 wage differentials employer size and unemployment international economic review 39 257 273 wage posting model and argue that the bargaining model is theoretically more appealing along important dimensions

the impact of deregulation and financial innovation on consumers the case of the mortgage market we develop a technique to assess the impact of changes in mortgage markets on house holds exploiting an implication of the permanent income hypothesis the higher a household s expected future income the higher its desired consumption ceteris paribus with perfect credit markets desired consumption matches actual consump tion and current spending forecasts future income because credit market imperfec tions mute this effect the extent to which house spending predicts future income measures the imperfectness of mortgage markets using micro data we find that since the early 1980s mortgage markets have become less imperfect in this sense and securitization has played an important role the u s mortgage market has experienced phenomenal change over the last 35 years gone are the days when most households get a cookie cutter 30 year fixed rate level payment mortgage from a savings and loan that takes deposits at 3 and lends at 6 also gone are the days when the typical lender holds that mortgage on its books until the maturity of the loan today consumers choose from an extensive menu of mortgages offering flexibility along almost every dimension furthermore most lenders hold the mortgage for only a short time typically they sell the mortgage on the secondary market many researchers have argued that this transformation has enhanced effi ciency by integrating the mortgage market with the broader financial markets however there has been comparatively little research investigating how or even whether the transformation of mortgage markets has directly affected

financial innovation and bank behavior evidence from credit markets this paper investigates whether and through which channel the active use of credit derivatives changes bank behavior in the credit market and how this channel was affected by the crisis of 2007 2009 our principal finding is that banks with larger gross positions in credit derivatives charge significantly lower corporate loan spreads while banks net positions are not consistently related to loan pricing we argue that this is consistent with banks passing on risk management benefits to corporate borrowers but not with alternative channels through which credit derivative use may affect loan pricing we also find that the magnitude of the risk management effect remained unchanged during the crisis period of 2007 2009 in addition banks with larger gross positions in credit derivatives cut their lending by less than other banks during the crisis and have consistently lower loan charge offs in sum our study is suggestive of significant risk management benefits from financial innovations that persist under adverse conditions that is when they matter most

the effect of financial development on convergence theory and evidence we introduce imperfect creditor protection in a multicountry schumpeterian growth model the theory predicts that any country with more than some critical level of financial development will converge to the growth rate of the world technology frontier and that all other countries will have a strictly lower long run growth rate we present evidence supporting these and other implications in the form of a cross country growth regression with a significant and sizable negative coefficient on initial per capita gdp relative to the united states interacted with financial intermediation in addition we find that other variables representing schooling geography health policy politics and institutions do not affect the significance of the interaction between financial intermediation and initial per capita gdp and do not show any independent effect on convergence in the regressions our findings are robust to removal of outliers and to alternative conditioning sets estimation procedures and measures of financial development

financial development and economic growth views and agenda this critique argues that the preponderance of theoretical reasoning and empirical evidence suggests a positive first order relationship between financial development and economic growth the body of work would push even most skeptics toward the belief that the development of financial markets and institutions is a critical and inextricable part of the growth process and away from the view that the financial system is an inconsequential sideshow responding passively to economic growth many gaps remain however and the paper highlights areas in acute need of additional research

rising occupational and industry mobility in the united states 1968 97 we document and analyze the high level and the substantial increase in worker mobility in the united states over the 1968 97 period at various levels of occupational and industry aggregation this is important in light of the recent findings that human capital of workers is largely occupation or industry specific to control for measurement error in occupation and industry coding we develop a method that utilizes the psid retrospective occupation industry supplemental data files we emphasize the importance of our findings for understanding a number of issues such as the changes in wage inequality aggregate productivity job stability and life cycle earnings profiles

a review of the recent empirical literature on displaced workers this article reviews the empirical literature on job displacement job displacement is widespread and strongly countercyclical tending to peak during economic downturns but concentrated in indus

wage losses for displaced workers many studies have shown that displaced workers experience substantial wage reductions that are strongly related to their predisplacement job tenure and experience this paper is an assessment of whether firm closures or downturns in more broadly defined labor markets drive the extreme wage losses of high tenure high experience displaced workers i show that the relatively high wage losses of high experience displaced workers are primarily due to their heightened sensitivity to downturns in their state industry and occupation however the large wage losses of high tenure displaced workers are not explained by their sensitivity to these local downturns one interpretation of these facts is that firm specialization is linked primarily to firm specific experience but not to general labor market experience

when credit bites back using data on 14 advanced countries between 1870 and 2008 we document two key facts of the modern business cycle relative to typical recessions financial crisis recessions are costlier and more credit intensive expansions tend to be followed by deeper recessions in financial crises or otherwise and slower recoveries we use local projection methods to condition on a broad set of macro economic controls to study how past credit accumulation impacts key macro economic variables such as output investment lending interest rates and inflation the facts that we uncover lend support to the idea that financial factors play an important role in the modern business cycle

job displacement relative wage changes and duration of unemployment using special cps data on displaced workers this article investigates the wage consequences of job displacement in a framework that emphasizes the effects of past job duration s and unemployment duration s on postdisplacement wages our model also attempts to take account of the simultaneity between unemployment duration and the postdisplacement wage it is found that duration strongly reduces subsequent earnings and that considerable overstatement of the loss in firm specific training investments is implied by conventional routes to measuring wage losses

finance firm size and growth the authors examine whether financial development boosts the growth of small firms more than large firms and hence provides information on the mechanisms through which financial development fosters aggregate economic growth they define an industry s technological firm size as the firm size implied by industrial specific production technologies including capital intensities and scale economies using cross industry cross country data the results indicate that financial development exerts a disproportionately large effect on the growth of industries that are technologically more dependent on small firms this suggests that financial development accelerates economic growth by removing growth constraints on small firms and also implies that financial development has sectoral as well as aggregate growth ramifications

optimal security design how should new securities be designed traditional theories have little to say on this the literature on capital structure and general equilibrium theories with incomplete markets take the securities firms issue as exogenous this paper explicitly incorporates the transaction costs of issuing securities and develops a model where the instruments that are traded are chosen optimally and the economy s market structure is endogenous among other things it is shown that the firm s income stream should be split so that in every state all payoffs are allocated to the security held by the group that values them most this abstract was borrowed from another version of this item

neglected risks financial innovation and financial fragility abstract we present a standard model of financial innovation in which intermediaries engineer securities with cash flows that investors seek but modify two assumptions first investors and possibly intermediaries neglect certain unlikely risks second investors demand securities with safe cash flows financial intermediaries cater to these preferences and beliefs by engineering securities perceived to be safe but exposed to neglected risks because the risks are neglected security issuance is excessive as investors eventually recognize these risks they fly back to the safety of traditional securities and markets become fragile even without leverage precisely because the volume of new claims is excessive

the performance of internet based business models evidence from the banking industry the initial internet bank startups tended to underperform branching bank startups this suggested that internet only business models were not economically viable for banks however firms that pioneer new business models may benefit substantially from experience as they grow older and firms that use automated production technologies may benefit from scale effects as they grow larger econometric analysis of internet only bank startups finds strong evidence of the latter but not the former effect the results suggest that internet only banking success depends on attaining sufficient scale and strong management practices

earnings losses of displaced workers revisited recent literature reviews conclude that job displacement results in sustained earnings losses bruce c fallick 1996 lori g kletzer 1998 and that estimates of the size of those reductions vary with the type of data used in the analysis the industry within which displacement occurs and business cycle conditions the largest estimated losses were obtained using administrative data from pennsylvania during the 1970s and 1980s louis s jacobson robert j lalonde and daniel g sullivan 1993a the data covered a period of high unemployment in a heavily indus trialized state characterized by disproportionate job losses in manufacturing thus the ability to generalize those results to more favorable economic times and states with a greater reliance on service sector employment has been questioned to address these issues administrative data are used to similarly examine the impact of job displacement on earnings losses of workers in connecticut from 1993 to 2004 the work of jacobson lalonde and sullivan jls also provided important methodologi cal advancement by adapting analytical techniques developed for program evaluation james j heckman and v joseph hotz 1989 to the context of job displacement the same techniques fixed effects and time trend estimators as those used in the original jls publication are initially employed here then the methods are extended to include matching estimators developed since their publication both nearest neighbor estimators of average treatment on the treated att and differenced average treatment on the treated datt are adapted to the context of this study heckman hidehiko ichimura and petra todd 1997 heckman et al 1998 and rajeev h dehejia and sadek wahba 1999 2002 the results presented here for connecticut differ in some ways from those found in the work of jls using data from pennsylvania in the period immediately following job loss regardless of the technique employed earnings reductions for workers displaced through mass layoff range from 32 percent to 33 percent jls reported immediate losses of more than 40 percent six years later using the same estimators as jls earnings reductions in connecticut range from 13 percent to 15 percent they report sustained losses in pennsylvania of 25 percent the smaller long term impacts in connecticut demonstrate that under more ordinary economic times esti mated losses from administrative data lie within the range observed using other data sources this finding resolves a long standing conflict among the results of high quality studies that have used differing data sources to study earnings reductions following job loss 1 using two different matching estimators earnings losses six years after mass layoff are 12 percent the matching estimators compare those who experienced mass layoff to compari sons with the same ex ante probability of the event these smaller losses are consistent with the

welfare effects of financial innovation in incomplete markets economies with several consumption goods abstract we show that in almost every incomplete markets economy with more than one consumption good and with sufficiently many uninsured states of nature at any general equilibrium of this economy it is possible to arbitrarily perturb the equilibrium utilities merely by introducing the appropriate asset making for example all agents worse off this result demonstrates that the examples given by hart on the optimality of equilibrium when the market structure is incomplete j econ theory11 1975 418 443 and others are actually general phenomena and is in sharp contrast to the intuition that innovation since it expands financial opportunities should benefit all agents journal of economic literature classification numbers d52 d60 g10

can skill decay increase search effort abstract we consider the search behaviour of a worker whose expected matching gains are assumed to be decreasing over the spell of unemployment the search effort is linked positively to future earnings and negatively to the reservation wage this may give rise to non monotonous hazard rates

differences in skill loss during unemployment across industries and occupations starting with ljungqvist and sargent 1998 and pissarides 1992 the search and matching literature has found that skill loss occurring during unemployment has important effects on macroeconomic models of unemployment this paper presents some evidence that the rate of skill loss varies across occupations and industries occupations and industries that require more skills experience higher rates of human capital decay these findings have important implications for models of equilibrium unemployment in particular for mismatch unemployment and the optimal reallocation of workers across sectors

strategic financial innovation in segmented markets rohit rahi obtained his ph d in economics from stanford university in 1993 he is a reader in finance and economics and a member of the financial markets group at the london school of economics his research interests are in the theory of financial markets in particular arbitrage in segmented markets security design and asset pricing with asymmetric information and in general equilibrium theory with incomplete markets he has published articles in the review of economic studies journal of economic theory and journal of business he served a nine year term on the editorial board of the review of economic studies jean pierre zigrand is a lecturer at the london school of economics his research interests are asset pricing financial intermediation theory and general equilibrium theory any opinions expressed here are those of the authors and not necessarily those of the fmg the research findings reported in this paper are the result of the independent research of the authors and do not necessarily reflect the views of the lse

business cycles unemployment insurance and the calibration of matching models this paper theoretically and empirically documents a puzzle that arises when an rbc economy with a job matching function is used to model unemployment the standard model can generate sufficiently large cyclical fluctuations in unemployment or a sufficiently small response of unemployment to labor market policies but it cannot do both variable search and separation finite ui benefit duration efficiency wages and capital all fail to resolve this puzzle however either sticky wages or match specific productivity shocks can improve the model s performance by making the firm s flow of surplus more procyclical which makes hiring more procyclical too

occupational specificity of human capital we find that returns to occupational tenure are substantial everything else being constant 5 years of occupational tenure are associated with an increase in wages of 12 20 moreover when occupational experience is taken into account tenure with an industry or employer has relatively little importance in accounting for the wage one receives this finding is consistent with human capital being occupation specific

arbitrage short sales and financial innovation the authors describe a model of general equilibrium with incomplete markets in which firms can innovate by issuing arbitrary costly securities when short sales are prohibited firms behave competitively and equilibrium is efficient when short sales are allowed these classical properties may fail if unlimited short sales are allowed imperfect competition may persist even when the number of potential innovators is large if limited short sales are allowed perfect competition may obtain in the limit but equilibrium can be inefficient because of the presence of an externality the private benefits of innovation for firms differ from the social benefits copyright 1991 by the econometric society

green gold burley tobacco smallholder agriculture and poverty alleviation in malawi abstract the abolition in 1990 of the estate monopoly on cultivation of burley tobacco is expected to play an important role in reducing poverty among smallholders in malawi a nationwide survey in 1993 shows that smallholder households cultivating burley also grow more hybrid maize use more fertilizer and are more food secure but resource poor households particularly those headed by women face land and labor constraints on burley adoption burley and hybrid maize increase the demand for hired labor but not enough to absorb the growth in the rural labor force broad based poverty alleviation requires technology and programs targeted at the majority of smallholders with holdings of 0 5 hectares or less

changing consequences of job separation in the united states using the panel study of income dynamics the author examines the consequences of job loss between the periods 1976 81 and 1986 91 he finds stability in the overall incidence of job separation but a statistically significant increase in the incidence of involuntary job loss relative to quits for older workers he also finds that the consequences of involuntary job loss worsened the reemployment rate of workers who experienced involuntary job loss dropped from 67 in 1976 81 to 62 in 1986 91 and among those who found new jobs the odds of receiving a large wage cut rose from 9 in 1976 81 to 17 in 1986 91

are workers permanently scarred by job displacements this paper investigates whether workers suffer lasting scars following job displacements using david t ellwood s 1982 terminology scars represent persistent effects whereas blemishes are transitory adjustments which dissipate over time more precisely dislocated individuals are defined as scarred if they continue to earn less or to be unemployed more than their nondisplaced counterparts even after the conclusion of a several year adjustment period

accuracy of response in labor market surveys evidence and implications this paper examines the extent of response errors in labor market survey data and explores the implications of such errors for economic analysis explicitly examined are responses to questions on industry occupation union status hours worked and wages analyses are based on two sources 1 a special supplement to the january 1977 current population survey that obtained data from workers and their employers and 2 an exact match of workers and their employers interviewed in the employment opportunity pilot project survey the dual nature of these surveys provides a basis for analyzing the effect of response error on a variety of economic analyses including the trade off between wages and risk the wage impact of unionism and the sensitivity of wage determination models to alternative responses to earnings questions

financial development and intersectoral allocation a new approach this paper uses a new methodology based on industry comovement to examine the role of financial market development in intersectoral allocation based on the assumption that there exist common global shocks to growth opportunities we hypothesize that country pairs should have correlated patterns of sectoral growth if they are able to respond to these shocks consistent with financial markets promoting responsiveness to shocks countries have more highly correlated growth rates across sectors when both countries have well developed financial markets this effect is stronger between country pairs at similar levels of economic development which are more likely to experience similar growth shocks copyright 2004 by the american finance association

financial market innovation and security design an introduction abstract the article describes in the context of theory and practice this special issue of the journal of economic theory on financial market innovation and security design the main focus is on security design in incomplete financial markets possibly with asymmetrically informed traders we first survey the general equilibrium literature which emphasizes the spanning role of securities we then provide a unified framework encompassing the literature that employs a cara guassian setting to study the impact of financial innovation on risk sharing and information aggregation journal of economic literature classification numbers g10 d52

empirical studies of financial innovation lots of talk little action this paper reviews the extant empirical studies of financial innovation adopting broad criteria we could find only somewhat more than two dozen studies and since some financial innovations are examined by more than one study they cover only seventeen phenomena especially striking is the fact that only two studies offer tests of the broad hypotheses concerning the environmental conditions spurring financial innovation e g regulation taxes unstable macroeconomic conditions and ripe technologies that have been advanced in descriptive articles we offer some tentative conjectures as to why empirical studies of financial innovation are comparatively rare among our suggested culprits is an absence of accessible data we urge financial regulators to undertake more surveys of financial innovation and to make the survey data more available to researchers

industry specific capital and the wage profile evidence from the national longitudinal survey of youth and the panel study of income dynamics using data from the national longitudinal survey of youth 1979 96 and the panel study of income dynamics 1981 91 i seek to determine whether there is any net positive return to tenure with the current employer once we control for industry specific capital including total experience in the industry as an additional explanatory variable i show that the return to seniority is markedly reduced using gls while it virtually disappears using iv gls at both the one digit and three digit levels therefore it seems that what matters most for the wage profile in terms of human capital is industry specificity not firm specificity

global growth opportunities and market integration we propose an exogenous measure of a country s growth opportunities by interacting the country s local industry mix with global price to earnings pe ratios we find that these exogenous growth opportunities predict future changes in real gdp and investment in a large panel of countries this relation is strongest in countries that have liberalized their capital accounts equity markets and banking systems we also find that financial development external finance dependence and investor protection measures are much less important in aligning growth opportunities with growth than is capital market openness finally we formulate new tests of market integration and segmentation by linking local and global pe ratios to relative economic growth in a perfectly integrated world economy capital should be invested where it

job matching and the wage distribution this paper brings together the microeconomic labor and the macroeconomic equilibrium views of matching in labor markets we nest a job matching model a la jovanovic 1984 into a mortensen and pissarides 1994 type equilibrium search environment the resulting framework preserves the implications of job matching theory for worker turnover and wage dynamics and it also allows for aggregation and general equilibrium analysis we obtain two new equilibrium implications of job matching and search frictions for wage inequality first learning about match quality and worker turnover map gaussian output noise into an ergodic wage distribution of empirically accurate shape unimodal skewed with a paretian right tail second high idiosyncratic productivity risk hinders learning and sorting and reduces wage inequality the equilibrium solutions for the wage distribution and for the aggregate worker flows quits to unemployment and to other jobs displacements hires provide the likelihood function of the model in closed form

learning your comparative advantages we introduce an equilibrium labor market model where workers gradually learn about their unobserved production abilities while engaged in a productive activity occupation workers observe their output and extract information that allows them to make inferences about their unobserved aptitudes because workers are learning about themselves their output informs them not only about their productivity in their current occupation but about their likely productivity in other occupations as well as workers acquire more information they self select into the occupations in which they expect to perform best and their wages increase returns to experience here capture improved job selection by workers as they sort through occupations and learn

interpreting panel data on job tenure tenure responses in the panel study of income dynamics psid and the national longitudinal surveys are often inconsistent with calendar time these inconsistencies pose special problems in the psid because job changes cannot be identified directly so researchers must infer them from error ridden tenure data we use alternative rules for partitioning psid data into jobs and then estimate several wage and mobility models to assess the sensitivity of parameter estimates to the partitioning method we also assess the importance of replacing raw tenure data with imputed measures that are internally consistent

why did the average duration of unemployment become so much longer there has been a substantial increase in the average duration of unemployment relative to the unemployment rate in the u s over the last 30 years we evaluate the performance of a standard job search model in explaining this phenomenon in particular we examine whether the increase in within group wage inequality and the decline in the incidence of unemployment can account for the increase in unemployment duration the results indicate that these two changes can explain a significant part of the increase over the last 30 years although the model fails to match the behavior of unemployment duration during 1980s

heterogeneous job matches and the cyclical behavior of labor turnover abstract worker flows to and from unemployment simultaneously occur over the us business cycle and the size of the flows is positively linked to the unemployment rate unemployment flows and the unemployment rate are highly volatile persistent and countercyclical inflows lead the unemployment rate and the unemployment rate leads outflows over the business cycle the one sector stochastic growth model is augmented by matching frictions in the labor market and match specific productivity shocks that introduce ex post heterogeneous job matches matching frictions help generate the lead lag relationship between unemployment flows and the unemployment rate combined with heterogeneous job matches they generate endogenous unemployment flows and an unemployment rate whose dynamic characteristics match observed data

credit risk transfer and contagion some have argued that recent increases in credit risk transfer are desirable because they improve the diversification of risk others have suggested that they may be undesirable if they increase the risk of financial crises using a model with banking and insurance sectors we show that credit risk transfer can be beneficial when banks face uniform demand for liquidity however when they face idiosyncratic liquidity risk and hedge this risk in an interbank market credit risk transfer can be detrimental to welfare it can lead to contagion between the two sectors and increase the risk of crises

promoting sustainable intensification and productivity growth in sahel agriculture after macroeconomic policy reform abstract policy reforms and structural adjustment programs in sahelian countries have eliminated many public agricultural support programs creating a vacuum that has not yet been filled by the private sector sahelian farmers thus face more difficult access to inputs and higher input costs input use has stagnated or declined yet higher population and less land for expansion of cultivation make it vital to increase the productivity of already cultivated land through adoption of intensive agricultural production techniques while partial intensification is becoming common too little investment is occurring in inputs and land improvements that maintain soil fertility control erosion and improve water availability partial intensification therefore risks being an unsustainable strategy higher and more sustainable productivity growth requires significantly increased use of chemical and organic fertilizer improved seeds bunds and animal traction the dilemma is how to ensure that such investments are financially and economically profitable and affordable in terms of government budgets it is crucial to 1 improve input access and reduce the unit cost of inputs to farmers through infrastructure investment 2 increase the productivity of fertilizer and improved seed by encouraging complementary farm level investments 3 improve the coordination of input and output marketing systems and improve incentives for private sector involvement 4 improve farmers ability to buy inputs using credit and non farm income 5 reduce the financial risks of purchased input use through integrated input output markets and innovative credit schemes and 6 evaluate the net economic benefits of selected agricultural support programs including input subsidies

financial innovation and the role of derivative securities an empirical analysis of the treasury strips program the role that financial innovation plays in financial markets is very controversial to provide insight into this role we examine how market participants use the highly successful treasury strips program we find that investors use the option to create treasury derivative strips primarily to make markets more complete and take advantage of tax and accounting asymmetries although liquidity related factors help explain differences in the prices of treasury bonds and strips we find little evidence that the option to strip and reconstitute securities is used for speculative or arbitrage related purposes the role of financial innovation is a central issue for both policymakers and researchers in finance 1 critics argue that financial innovations often have no economic role beyond allowing some investors to take highly leveraged speculative or arbitrage related positions in contrast advocates argue that the introduction of new products makes financial markets more complete reduces frictions and transaction costs and leads to a more optimal allocation of risk in the economy to better understand the role played by financial innovation this paper examines how investors use the successful separate trading of registered interest and principal of securities strips program of the u s treasury this program allows investors to strip treasury notes and bonds to create separate discount bonds and to reconstitute previously stripped notes and