rates of return to human capital a test using el salvador data most of the empirical work on human capital has been confined to conditions in developed countries this is probably due to difficulties in obtaining data for other countries it would be interesting to see how robust the theory and its associated models are in conditions regarded as typical for developing countries this will be considered here using a large data set describing the el salvador labor market two questions will be examined namely a how well does the earnings function of the human capital theory explain earnings distribution in el salvador and b does the return to training called experience here approximate the return to school as is often assumed in human capital research the latter issue is of course related to the notion of overtaking the point in the experience profile when the flat earnings stream is intersected from below by the earnings stream affected by postschool investments

post secondary education in canada can ability bias explain the earnings gap between college and university graduates using the canadian general social survey we compute returns to post secondary education relative to high school unlike previous research using canadian data our data set allows us to control for ability selection into higher education we find strong evidence of positive ability selection into all levels of post secondary education for men and weaker positive selection for women since theability selection is stronger for higher levels of education particularly for university the difference in returns between university and college or trades education decreases slightly after accounting for ability bias however a puzzling large gap persists with university educated men still earning l education post secondaire au canada est ce que le differentiel d habilete peut expli quer les ecarts de gains entre les diplomes des colleges et des universites en utilisant les resultats de l enquete sociale generale au canada on calcule les rendements sur l education post secondaire par rapport a ceux sur l education secondaire contrairement aux travaux anterieurs sur les donnees canadiennes les donnees utilisees ici permettent de tenir compte des differentiels d habilete les resultats revelent un fort differentiel positif d habilete pour les hommes a tous les niveaux de l education post secondaire et un moin dre differentiel pour les femmes puisque ce differentiel est plus fort pour les plus hauts niveaux d education particulierement pour l universite la difference de rendements entre universites et colleges ou ecoles de metiers decroit quand on tient compte du differentiel d habilete cependant un large ecart residuel demeure et laisse perplexe les hommes avec une education universitaire gagnent encore plus de 20 de plus que ceux qui ont frequente les colleges et les ecoles de metiers apres normalisation pour le niveau d habilete

the private and total returns to education in canada 1985 the purpose of this paper is to present private and public rates of return to schooling in canada by level and for bachelor s degrees by field of study the paper is divided into three parts in the first part the analytical framework used is discussed and results of previous studies are reviewed in the second part the data and methodology are described in the third part results are presented and analyzed the results show the importance of completing a minimum level of schooling high school a decrease in rates of return to schooling with an increase in the level of schooling differences between men and women and differences among fields of study

the role of market forces in assuring contractual performance the conditions under which transactors can use the market repeat purchase mechanism of contract enforcement are examined increased price is shown to be a means of assuring contractual performance a necessary and sufficient condition for performance is the existence of price sufficiently above salvageable production costs so that the nonperforming firm loses a discounted steam of rents on future sales which is greater than the wealth increase from nonperformance this will generally imply a market price greater than the perfectly competitive price and rationalize investments in firm specific assets advertising investments thereby become a positive indicator of likely performance

borrowing high versus borrowing higher price dispersion and shopping behavior in the u s credit card market we document substantial cross individual dispersion in u s credit card borrowing costs even after controlling for borrower risk and card characteristics that remaining dispersion arises because cross lender pricing heterogeneity generates dispersion in annual percentage rate apr offers to borrowers and borrowers vary in shopping intensity our empirics match administrative data to self reported card shopping intensity and use instruments suggested by fair lending law to account for the endogeneity between aprs and search the results show that shoppers versus nonshoppers pay aprs as different as those paid by borrowers in the best versus worst credit score deciles we discuss implications for policy and practice

unsecured credit markets are not insurance markets abstract we study the extent to which unsecured credit markets have altered the transmission of increased income risk to consumption variability over the past several decades we find that unsecured credit markets pass through increased income risk to consumption irrespective of bankruptcy policy and the information possessed by lenders if risk sharing has indeed improved over this period the reasons do not therefore lie in the unsecured credit market

price advertising and the deterioration of product quality arguments in favour of self enforced bans on advertising by professionals often rely on the stylized fact that advertising can communicate information about price but not about quality this being the case it is argued that allowing professionals to advertise runs the risk that firms will compete vigorously over price at the expense of the quality of their product this paper shows that even if price can communicate no information directly about quality it can do so indirectly because price will be a signal of quality because of this allowing advertising is shown to improve consumer welfare

earnings functions for the self employed comment abstract the standard human capital earnings model is applied to data from a 1975 socioeconomic survey conducted in tehran iran results show that the returns to schooling for the self employed not including street vendors canvassers and newsvendors are statistically equivalent to those of wage and salary workers thus in contradiction to conclusions drawn from a study by chiswick 1976 the high rates of return to schooling found in many studies of less developed countries do not appear to be the result of the systematic exclusion of the self employed from the estimating samples in other words when wage and salary workers are compared with the self employed in similar occupations their earnings profiles are similar

can high prices ensure product quality when buyers do not know the sellers cost timothy j perri i introduction when consumers are unaware of product quality before they buy producers can nonetheless be punished for providing low quality by losing repeat business klein and leffler 1981 demonstrate that under fairly general conditions a price with a positive profit margin is needed to induce producers to deliver the promised quality level if the profit margin were zero the profit would be greater from low quality than from high even if the customers were disappointed and none of them returned consequently if a firm s price equaled its cost repeat business would be a matter of indifference a higher price however increases long run profit more for firms that provide the promised quality because such firms benefit from the repeat business of satisfied customers at a sufficiently high price the profit from repeat business exceeds the profit from cheating on quality at that price firms will provide the promised quality level 1 two points are of interest in the klein leffler model first absent firm specific capital expenditures positive profit exists in a competitive market second because consumers know the price is an incentive for high quality only if it generates sufficiently high profit they must know the firm s production costs if a given price premium is to ensure high quality we address both points in this article first although it is sometimes thought that non price competition will dissipate profits in the klein leffler model the model does not by itself have that implication positive profit will indeed persist in equilibrium even with free entry unless some new feature is added second while the klein leffier model assumes producers have identical costs though they can choose different quality levels we will add the possibility firms differ in their marginal costs of high quality in ways buyers cannot observe thus we combine moral hazard and adverse selection in a product quality model we hope to accomplish two things to explain how positive profits can persist in the original klein leffler model and to show that adding adverse selection can result in profit dissipation let us explain further before setting out the model first profit dissipation by non price competition lies outside the klein leffler model in that model information is complete buyers know only one type of firm exists but do not know product quality when they purchase a good 2 thus moral hazard is possible firms may deliver quality that is less than what they promised a price p sup above average cost p sub c is necessary to induce firms to deliver the high level of quality they promise to consumers entry cannot eliminate the resulting profit since additional output will drive price below the quality assuring level of p sup this is a surprising result an industry known to earn positive profit without collusion or conventional barriers to entry and yet without expanded output or entry 3 klein and leffler suggest that non price competition will dissipate this profit they realize that non price competition cannot reduce the operating margin by driving average cost per period up closer to price but they suggest that some kind of fixed cost might absorb the profit competition to dissipate the economic profits earned by existing firms must therefore occur in nonprice dimensions the competition involves firm specific capital expenditures klein and leffler 1981 626 such thinking comes naturally to economists we hold the maxim that markets abhor a profit as dearly as physics does nature abhors a vacuum non price competition would occur if each firm could increase profit via such behavior even though the net effect of many firms doing it would dissipate profit such is the case with a cartel where each cartel member can do better if it cheats on the collusive agreement using secret price cuts or non price competition that tends to drive profit to zero

returns to education a further international update and implications this paper updates evidence on the returns to investment in education by adding estimates for new countries and refining existing estimates to bring the total number of country cases to over 60 the new cross country evidence confirms and reinforces earlier patterns namely that returns are highest for primary education the general curricula the education of women and countries with the lowest per capita income the findings have important implications for directing future investment in education which for efficiency and equity purposes should concentrate on these priority areas

financial frictions and policy cooperation a case with monopolistic banking and staggered loan contracts abstract do financial frictions call for cross border policy cooperation this paper investigates the implications of financial frictions in the form of staggered loan contracts supplied by monopolistic banks for monetary policy using the linear quadratic lq framework we show that policy cooperation yields long run gains in addition to gains from stabilizing inefficient fluctuations over the business cycle as usually found in models with price rigidities the ramsey optimal steady states differ between cooperation and noncooperation such gains from cooperation arise irrespective of capital account liberalization

consumer search behavior in the changing credit card market this article investigates whether search costs inhibit consumers from searching for lower credit card interest rates the results provide evidence that the credit card search environment has changed since the mid 1990s using the 2001 survey of consumer finances we model consumers propensity to search and their probability of being denied credit simultaneously and find that larger credit card balances induce cardholders to search more even though they face a higher probability of rejection this result may be related to the high volume of direct solicitation combined with disclosure requirements which has lowered the cost of search to find lower interest rates

regulate one service tame the entire market credit cards in turkey abstract in credit card markets banks provide both payment and credit services two regulations were recently enacted in the turkish credit card market one on payment services in 2005 and the other on credit services in 2006 by employing the well known panzar and rosse 1982 panzar and rosse 1987 method and a unique quarterly data set for 21 turkish banks between 2002 and 2008 we investigate the extent of banks market power in the turkish credit card market before and after the regulations unlike most of the existing literature which considers competition and regulation for either credit or payment services and ignores the externalities between them we consider the entire market by taking both services into account fixed effects estimations reveal that banks enjoyed collusive oligopoly power before the regulations although the first regulation did not have much impact the second led to rises in both banks total revenues and competition in the entire market

does information sharing reduce the role of collateral as a screening device this is the authors accepted refereed and final manuscript to the article publisher s version available at http dx doi org 10 1016 j jbankfin 2014 02 010

wage functions and occupational selection in a rural less developed country setting economists are just beginning to develop empirical knowledge about the basic relationships that determine the distribution of incomes and allocation of resources in the poor rural regions of the world understanding interactions between agriculture and the rest of the economy is particularly important in this context this paper empirically investigates the allocation of human resources between farm work and other jobs and the compensation received by individuals for their work in agriculture and elsewhere specifically two related tasks are undertaken in this paper 1 the estimation of wage functions and 2 the estimation of functions determining the allocation of time among occupations there have been a series of papers which estimate the earnings function using data from poor countries for examples see blaug 1974 chiswick 1977 and valdes 1971 however this study focuses not on total earnings but on the wage rates a person may earn in labor market work because the wage rate is the relevant price of time for many allocative decisions for example in dividing the work year between self employed farming and work as an employee off the farm a key price is the potential wage rate the person can earn in the labor market for discussion and evidence on this issue see sumner 1978 recently a few studies have appeared which illustrate the importance of understanding potential wage variations across individuals in less developed countries rosenzweig 1978 uses wage estimates from aggregate indian data in a model determining the impact of land reform bardhan 1979 develops wage functions from a sample survey in rural india as a step in estimating labor supply for rural households kusnic and davanzo 1980 use wage functions to impute potential incomes and to measure the full income distribution these previous studies illustrate the importance of understanding the determinants of market wages the present paper develops wage functions in more detail focusing especially on industrial differentials in many rural areas employment opportunities may be usefully categorized into 1 self employment mainly on small farms 2 work for wages on large farms and 3 work for wages in non farm industries the combination of selfemployment and work as an employee is also important in many rural areas in both rich and poor countries this paper examines the impact of personal characteristics on the choice to participate in work for wages and on the choice of industry these estimates also form a basis for studying industrial wage differentials tentative estimates of the dependence of participation on expected wages are also presented below the empirical analysis in this paper is based on a 1974 sample of five villages in central guatemala see corona 1978 and stein 1978 one village petapa is larger richer and more urban than the others it lies south of guatemala city within commuting distance of the capital the other villages are outside the capital city region the population sampled is almost exclusively ladino spanish culture as opposed to indian data are available on the earnings hours of work industry age schooling literacy and village of 1 005 male heads of households approximately one third of the sample work as both self employed farmers and hired workers and most of these men work on fincas large plantations another quarter of the sample work as self employed farmers and do no work for wages the suburban village has mostly nonagricultural workers whereas the four other villages have predominantly farmers and farm employees in received for publication june 21 1979 revision accepted for publication december 31 1980 north carolina state university research on this paper began while i was a rockefeller foundation supported post doctoral fellow in the labor and population group of the economics department of the rand corporation and continued at north carolina state university supported by the agricultural research service at rand robert newman served as my research assistant and at n c state james cochell provided able assistance i have benefited from the comments of colleagues at both institutions and from members of the labor economics workshop at the university of north carolina at chapel hill i also thank two anonymous referees for useful suggestions this is paper number 6558 of the journal series of the north carolina agricultural research service raleigh n c

an empirical analysis of personal bankruptcy and delinquency this article uses a new dataset of credit card accounts to analyze credit card delinquency personal bankruptcy and the stability of credit risk models we estimate duration models for default and assess the relative importance of different variables in predicting default we investigate how the propensity to default has changed over time disentangling the two leading explanations for the recent increase in default rates a deterioration in the risk composition of borrowers versus an increase in borrowers willingness to default due to declines in default costs even after controlling for risk composition and economic fundamentals the propensity to default significantly increased between 1995 and 1997 standard default models missed an important time varying default factor consistent with a decline in default costs debt issued by consumers is an understudied asset class there has been particularly little academic study of recent trends in default on this debt between 1994 and 1997 the number of personal bankruptcy filings in the united states rose by about 75 the 1 35 million filings in 1997 represented well over 1 of u s households delinquency rates on credit cards rose almost as sharply federal reserve bank of cleveland 1998 the resulting losses to lenders amounted to a sizable fraction of the interest payments they collect potentially raising the average cost of credit these trends in default both in bankruptcy and delinquency are especially surprising in light of the strong economy over the period they provide an unusually rich source of variation to test the stability of models that forecast personal default and of credit risk models more generally there are two leading explanations for these trends first the risk composition of borrowers might have worsened under the risk effect less

the role of soft information in a dynamic contract setting evidence from the home equity credit market credit underwriting is a dynamic process involving multiple interactions between borrower and lender during this process lenders have the opportunity to obtain hard and soft information from the borrower we analyze more than 108 000 home equity loans and lines of credit applications to study the role of soft and hard information during underwriting our data set allows us to distinguish lender actions that are based strictly on hard information from decisions that involve the collection of soft information our analysis confirms the importance of soft information and suggests that its use can be effective in reducing overall portfolio credit losses ex post

effective tax and subsidy rates on human capital in canada abstract effective tax and subsidy rates etrs and esrs on human capital investment via post secondary education are estimated for canada in the years 2000 and 2006 the flattening of the federal personal income tax structure in 2001 substantially reduced the tax disincentive for investment in human capital effective subsidy rates also declined as public spending did not keep pace with rising tuition fees the change on the tax side was strong enough to dominate the subsidy reduction according to our main results but disaggregation shows that this result did not hold in all cases results are shown for college master s and phd programs in addition to bachelor s degrees they are also broken down by gender and are shown for the 25th and 75th percentiles as well as the median provincial detail and 1997 results are provided in the case of bachelor s graduates

a simple model of product quality with elastic demand abstract in various models starting with klein and leffler 1981 sellers produce high quality for the sake of future profits these models have assumed that a consumer demands one or zero units but a simple model with elastic demand and entry costs can illustrate the same point with fewer problems of existence or determinacy of equilibrium

the failure of competition in the credit card market the bank credit card market containing 4 000 firms and lacking regulatory barriers casually appears to be a hospitable environment for the model of perfect competition nevertheless this article reports that credit card interest rates have been exceptionally sticky relative to the cost of funds moreover major credit card issuers have persistently earned from three to five times the ordinary rate of return in banking during the periods 1983 88 the failure of the competitive model appears to be partly attributable to consumers making credit card choices without taking account of the very high probability that they will pay interest on their outstanding balances copyright 1991 by american economic association

switching costs and adverse selection in the market for credit cards new evidence abstract to explain persistence of credit card interest rates at relatively high levels calem and mester aer 1995 argued that informational barriers create switching costs for high balance customers as evidence using data from the 1989 survey of consumer finances they showed that these households were more likely to be rejected when applying for new credit in this paper we revisit the question using the 1998 and 2001 scf further we use new information on card interest rates to test for pricing effects consistent with information based switching costs we find that informational barriers to competition persist although their role may have declined

wage inequality and the distribution of education abstract this paper analyzes the relationship between education and wage inequality in metropolitan brazil the study is based on data from ten brazilian annual household surveys pnads which are available for the period 1976 1986 the universe of analysis is limited to occupied prime age males the inequality measure used was theil s second measure which is analytically convenient for a study of the determinants of inequality it is shown that there exist sharp differences in wage inequality across metropolitan areas to identify whether these large regional differences in inequality are directly associated with differences in educational levels or with differences in the steepness of the wage education profiles some simulations are conducted the results indicate that regional differences in the distribution of education are not able to explain much of the regional differences in wage inequality as a matter of fact the differences in wage inequality were shown to be intrinsically associated with differences in the steepness of the wage education profiles