does trade credit boost firm performance abstractsome firms have achieved good performance in developing countries where the financial sector is far from established one explanation in the literature is that these firms benefit from trade credit a form of informal financing using a survey of firms in china conducted by the world bank in early 2003 this article examines whether trade credit indeed boosts firm performance our ordinary least squares results show that trade credit is significantly and positively correlated with firm performance however using the instrumental variable approach to address endogeneity we find that the statistical significance disappears the results are robust to a series of robustness checks casting doubt on the claim that trade credit boosts firm performance

the effect of unions on the structure of wages a longitudinal analysis this paper studies the effects of unions on the structure of wages using an estimation technique that explicitly accounts for misclassification errors in reported union status and potential correlations between union status and unobserved productivity the econometric model is estimated separately for five skill groups using a large panel data set formed from the u s current population survey the results suggest that unions raise wages more for workers with lower levels of observed skills in addition the patterns of selection bias differ by skill group among workers with lower levels of observed skill unionized workers are positively selected whereas union workers are negatively selected from among those with higher levels of observed skill despite a large and sophisticated literature there is still substantial disagreement over the extent to which differences in the structure of wages between union and nonunion workers represent an effect of trade unions rather than a consequence of the nonrandom selection of unionized workers over the past decade several alternative approaches have been developed to control for unobserved heterogeneity between union and nonunion workers 2 one method that has been successfully applied in other areas of applied microeconometrics is the use of longitudinal data to measure the wage gains or losses of workers who change union status unfortunately longitudinal estimators are highly sensitive to measurement error even a small fraction of misclassified union status changes can lead to significant biases if the true rate of mobility between union and nonunion jobs is low this sensitivity led lewis 1986 to essentially dismiss the longitudinal evidence in his landmark survey of union wage effects in this paper i present some new evidence on the union wage effect based on a longitudinal estimator that explicitly accounts for misclassification errors in reported union status the estimator uses external information on union status misclassification rates along with the reduced form coefficients from a multi variate regression of wages on the observed sequence of union status indicators to isolate the causal effect of unions from any selection biases introduced by a correlation between union status and the permanent component of unobserved wage heterogeneity recognizing that unions may raise wages more or less for

accounts receivable management policy theory and evidence this paper develops and tests hypotheses that explain the choice of accounts receivable management policies the tests focus on both cross sectional explanations of policy choice determinants as well as incentives to establish captives we find size concentration and credit standing of the firm s traded debt and commercial paper are each important in explaining the use of factoring accounts receivable secured debt captive finance subsidiaries and general corporate credit we also offer evidence that captive formation allows more flexible financial contracting however we find no evidence that captive formation expropriates bondholder wealth firms typically sell merchandise on credit rather than requiring immediate cash payment such credit sales generate accounts receivable although credit terms and credit collection procedures have been studied see smith 1980 there has been little systematic analysis of the organizational and financial structures employed to manage the firm s accounts receivable these decisions merit more careful attention for two reasons first receivables are a substantial fraction of corporate assets for example 1986 compustat data indicate that accounts receivable are 21 0 of u s manufacturing corporations total assets second we observe substantial diversity in firms use of specialized contracts and intermediaries in their accounts receivable management policies firms can 1 establish a captive finance subsidiary 2 issue accounts receivable secured debt 3 factor 4 employ a credit reporting firm 5 retain a credit collection agency or 6 purchase a credit insurance policy 1 in this paper we demonstrate that accounts receivable management policy offers opportunities for both the development of a robust theory as well as empirical testing of the theory s implications although the data necessary to

evidence on the determinants of credit terms used in interfirm trade trade credit is created whenever a supplier offers terms that allow the buyer to delay payment in this paper we document the rich variation in interfirm credit terms and credit policies across industries we examine empirically the firm s basic credit policy choices whether to extend credit or to require cash payment and if credit is extended whether to adopt simple net terms or terms with discounts for prompt payment we also examine determinants of variations in two part terms results are supportive primarily of theories that explain credit terms as contractual solutions to information problems concerning product quality and buyer creditworthiness trade credit has important economic significance from both micro and macroeconomic perspectives during the 1990s vendor financing has accounted for an average 1 5 trillion of the book value of all assets of u s corporations and has represented approximately 2 5 times the combined value of all new public debt and primary equity issues during a given year as a component of the money supply trade credit in the form of accounts payable exceeds the primary money supply mi by a factor of 1 5 on average 1 clearly efforts to control economic growth through monetary policy can be confounded by aggregate decisions of businesses to increase or decrease reliance on trade credit financing several recent empirical studies examine determinants of firm reliance on trade credit 2 these studies model supply and demand for trade credit using financial statement data accounts receivable and payable 3 however many aspects of trade credit practice are unexplored most notably little is known about the types of credit terms e g net 30 2 10 net 30 and credit policies that are observed across firms and industries the only comprehensive doc

interfirm relationships and informal credit in vietnam trading relations in vietnam s emerging private sector are shaped by two market frictions the difficulty of locating trading partners and the absence of legal enforcement of contracts examining relational contracting we find that a firm trusts its customer enough to offer credit when the customer finds it hard to locate an alternative supplier a longer duration of trading relationship is associated with larger credit as is prior information gathering customers identified through business networks receive more credit these network effects are enduring suggesting that networks are used to sanction defaulting customers

two decades of income inequality in britain the role of wages household earnings and redistribution we study earnings and income inequality in britain over the past two decades including the period of relatively inclusive growth from 1997 to 2004 and the great recession we focus on the middle 90 where trends have contrasted strongly with the new inequality at the very top household earnings inequality has risen driven by male earnings although a catch up of female earnings did hold down individual earnings inequality and reduce within household inequality nevertheless net household income inequality fell due to deliberate increases in redistribution the tax and transfer system s insurance role during the great recession falling household worklessness and rising pensioner incomes

weak instruments diagnosis and cures in empirical econometrics what is the weak instruments wi problem and what causes it universal agreement does not exist on these questions we define weak instruments by two features i two stage least squares 2sls analysis is badly biased toward the ordinary least squares ols estimate and alternative unbiased estimators such as limited information maximum likelihood liml may not solve the problem and ii the standard first order asymptotic distribution does not give an accurate framework for inference thus a researcher may estimate bad results and not be aware of the outcome the cause of wi is often stated to be a low r or f statistic of the reduced form equation in the most commonly occurring situation of one right handside endogenous variable we find the situation is more complex with an additional factor the correlation between the stochastic disturbances of the structural equation and the reduced form that needs to be taken into account we discuss in this paper a specification test hahn and hausman 2002a for wi a caution against using no moments estimators such as liml in the wi situation and suggestions for different estimators an approach to inference of frank kleibergen 2002 for wi we end with a caution of how small biases can become large biases in the wi situation we begin with the limited information structural model under the assumptions of hausman 1983

trade credit and informational asymmetry commonly used trade credit terms implicitly define a high interest rate that operates as an efficient screening device where information about buyer default risk is asymmetrically held by offering trade credit a seller can identify prospective defaults more quickly than if financial institutions were the sole providers of short term financing the information is valuable in cases where the seller has made nonsalvageable investments in buyers since it enables the seller to take actions to protect such investments traditional explanations for the widespread use of trade credit fall into two categories the financing motive holds that capital market imperfections enable sellers to finance buyer purchases at lower cost than financial institutions ferris 4 argues that trade credit provides payment flexibility and thus reduces the overall need for buyers and sellers to maintain precautionary balances emery 3 contends that noncompetitive rents of financial institutions can be circumvented by sellers and buyers through provision of trade credit however the financing motive is not sufficient to explain why small suppliers offer trade credit the wide cross sectional variation in terms or why large buyers often take the prompt payment discount late a second set of explanations is best described as pricing motivations for trade credit provision nadiri 10 argues that availability of alternative payment terms can increase product demand but does not indicate why the offered terms could not be duplicated by financial institutions schwartz and whitcomb 14 argue that trade credit is used to circumvent robinson patman and similar prohibitions on price discrimination the correctness of this position depends on the charge to users of trade credit exceeding the cost of provision by the seller although the explanation is possible in principle an empirical question remains as to why variations in actual credit terms appear to be based on product market rather than buyer characteristics the literature also contains analyses of the impact of changing macroeconomic conditions on trade credit terms and aggregate credit flows schwartz 13 for example employs a financing motive for trade credit to conclude that restrictive monetary policy can be partly mitigated by liberalization of trade credit terms by firms with relatively easy access to capital markets however a microeconomic

wage inequality in the labour years this paper studies changes in labour market inequality in the uk with particular reference to what happened to wage inequality during the years of labour government the analysis uses micro data through time to document what happened to overall wage inequality as well as upper and lower tail wage inequality relative to what went before simple supply and demand models of changing wage differentials by education group are used so as to consider the drivers of relative demand shifts in favour of the more educated that underpin rising wage inequality the changing role of labour market institutions is also discussed and in particular the decline of unionization and the importance of the introduction of the national minimum wage in 1999 for the evolution of lower tail wage inequality

costly bidding in online markets for it services internet enabled markets are becoming viable venues for procurement of professional services we investigate bidding behavior within the most active area of these early knowledge markets the market for software development these markets are important both because they provide an early view of the effectiveness of online service markets and because they have a potentially large impact on how software development services are procured and provided using auction theory we develop a theoretical model that relates market characteristics to bidding and transaction behavior taking into account costly bidding we then test our model using data from an active online market for software development services which yields contracts for 30 40 of posted projects in its current format however the studied market may induce excessive bidding by vendors consistent with our theoretical predictions and those of carr 2003 higher value projects attract significantly more bids with lower average quality greater numbers of bids raise the cost to all participants due to costly bidding and bid evaluation perhaps as a consequence higher value projects are also much less likely to be awarded

financial development bank discrimination and trade credit non state owned firms in china grow tremendously with limited support from banks this provides a unique setting to test how firms in a country with poorly developed financial institutions fund their prosperous growth opportunities this paper compares the use of an important non formal financial channel trade credit between state and non state owned firms in china we find that compared to state owned firms non state owned firms use more trade credit we further show that this higher usage is primarily for financing rather than transactional purposes the results suggest that in a country with a poorly developed formal financial sector firms can support their growth through non formal financial channels that largely rely on implicit contractual relation

trade credit and credit rationing asymmetric information between banks and firms can preclude financing of valuable projects trade credit alleviates this problem by incorporating in the lending relation the private information held by suppliers about their customers incentive compatibility conditions prevent collusion between two of the agents e g the buyer and the seller against the third e g the bank consistent with the empirical findings of petersen and rajan 1995 firms without relationships with banks resort more to trade credit and sellers with greater ability to generate cash lows provide more trade credit finally small firms react to monetary contractions by using trade credit consistent with the empirical results of nilsen 1994 article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

trade credit and productive efficiency in developing countries abstract in developing countries credit shortages are often so severe as to impact a firm s day to day production decisions using firm level data from five african countries i show supplier credit is positively correlated with capacity utilization the result continues to hold when credit access is instrumented using supplier characteristics i claim that this is because firms lacking credit likely face inventory shortages leading to lower rates of capacity utilization this explanation yields several further predictions that are supported by the data there is a positive relationship between supplier credit and inventory holdings moreover raw materials stockouts are positively correlated with capacity utilization particularly in inventory intensive industries

law finance and firm growth we investigate how differences in legal and financial systems affect firms use of external financing to fund growth we show that in countries whose legal systems score high on an efficiency index a greater proportion of firms use long term external financing an active though not necessarily large stock market and a large banking sector are also associated with externally financed firm growth the increased reliance on external financing occurs in part because established firms in countries with well functioning institutions have lower profit rates government subsidies to industry do not increase the proportion of firms relying on external financing the corporate finance literature suggests that market imperfections caused by conflicts of interest and informational asymmetries between corporate insiders and investors constrain firms in their ability to fund investment projects the magnitude of these imperfections depends in part on the effectiveness of the legal and financial systems because these systems differ across countries the literature implies that there should exist systematic cross country differences in firms ability to obtain external capital to finance investment in this paper we examine whether the underdevelopment of legal and financial systems does prevent firms in some countries from investing in potentially profitable growth opportunities in particular we focus on the use of long term debt or external equity to fund growth see our earlier work demirgut kunt and maksimovic 1996a which compares firms financial structures in developed and developing countries and finds the greatest difference to be in the provision of long term credit we estimate a financial planning model to obtain the maximum growth rate that each firm in our thirty country sample could attain without access to long term financing we then compare these predicted growth rates to growth rates realized by firms in countries with differing degrees of development in their legal and financial systems our approach enables us to identify specific characteristics of the legal and financial systems that are associated with long term financing of firm growth thus we provide a micro level test of the hypoth

the legal environment banks and long run economic growth this paper examines the relationship between the legal system and banlding development and traces this connection through to long run rates of per capita gdp growth capital stock growth and productivity growth the data indicate that countries where the legal system 1 emphasizes creditor rights and 2 rigorously enforces contracts have better developed banks than countries where laws do not give a high priority to creditors and where enforcement is lax furtherrnore the exogenous component of banking development the component defined by the legal environment is positively and robustly associated with per capita growth physical capital accumulation and productivity growth this paper addresses two questions first do crosscountry differences in the legal rights of creditors the efficiency of contract enforcement and the origin of the legal system explain cross country differences in the level of banking development second do better developed banks cause faster economic development that is is the component of banking development defined by the legal environment positively associated with long run rates of economic growth capital accumulation and productivity growth examining the relationship between the legal system and banking development is valuable irrespective of issues associated with long run growth first banks may influence the level of income per capita and the magnitude of cyclical fluctuations bernanke and gertler 1989 1990 second many economists stress that understanding the evolution of legal and financial systems is essential for understanding economic development north 1981 engerman and sokoloff 1996 consequently quantitative information on the relationship between the legal environment and banks will improve our understanding of business cycles and the process of economic development furthermore examining the causal links between banks and economic growth has both conceptual and policy implications on the conceptual front a long literature debates the importance of banks in economic development starting as early as bagehot 1873 economists have argued that better banks banks that are better at identifying creditworthy firms mobilizing savings pooling risks and facilitating transactions

a transactions theory of trade credit use this paper derives a transactions theory of trade credit use from the motives of trading partners to economize on the joint costs of exchange in the formal analysis uncertain delivery time is used to generate a demand by firms to hold inventories of both goods and money trade credit is viewed as a mechanism that separates the exchange of money from the uncertainty present in the exchange of goods by forewarning both trading partners of the timing of money flows credit permits a reduction in precautionary money holdings and the more effective management of net money accumulations

an optimal financial response to variable demand this paper develops a positive theory of trade credit based on its use as a financial response to deterministic variations in demand the operating alternatives to trade credit which include the use of storage or additional capacity are modeled using results from the peak load pricing literature the paper shows that the extension of credit partitions the buyer s inventory cost and permits specialization at incurring the components of this cost this specialization is economical when the seller has an advantage at incurring the financial cost and does not have an advantage at incurring the operating cost of accommodating variable demand conditions that provide these necessary and sufficient cost relationships are described the paper also shows that a reduction in costs rather than an increase in revenues is the source of both the buyer s and seller s increase in wealth

the decline of labour market institutions and the rise in wage inequality in britain abstract at the same time as the role of labour market institutions declined very dramatically in britain there was a very sharp rise in wage inequality that since 1980 has increased at a faster pace than in most advanced countries britain in the 1980s and early 1990s therefore provides a very good testing ground for evaluating the importance of labour market institutions in explaining the evolution of the wage structure i look at this in terms of two institutions that have traditionally propped up wage levels at the bottom end of the wage distribution unions and minimum wages i find that their weakening has played an important part in the rise in wage inequality in britain

finance and the sources of growth the authors evaluate whether the level of development in the banking sector exerts a causal impact on economic growth and its sources total factor productivity growth physical capital accumulation and private saving they use 1 a pure cross country instrumental variable estimator to extract the exogenous component of banking development and 2 a new panel technique that controls for country specific effects and endogeneity they find that banks do exert a large causal impact on total factor productivity growth which feeds through to overall gdp gross domestic product growth the long run links between banking development and both capital growth and private savings are more tenuous