the forecasting ability of correlations implied in foreign exchange options abstract this paper evaluates the forecasting accuracy of correlations derived from implied volatilities in dollar mark dollar yen and mark yen options from january 1989 to may 1995 as a forecast of realized correlation between the dollar mark and dollar yen implied correlation is compared against three alternative forecasts based on time series data historical correlation riskmetrics exponentially weighted moving average correlation and correlation estimated using a bivariate garch 1 1 model at the 1 month and 3 month forecast horizons we find that implied correlation outperforms often significantly these alternative forecasts in combinations implied correlation always incrementally improves the performance of other forecasts but not the converse in certain cases historically based forecasts contribute no incremental information to implied forecasts the superiority of the implied correlation forecast holds even when forecast errors are weighted by realized variances reflecting correlation s contribution to the dollar variance of a multicurrency portfolio

labor earnings discrimination and the racial composition of jobs this paper examines the effect of the racial composition of labor markets on wage rates and the racial wage gap the wage rates of white as well as black workers are significantly lower in industry occupationregional groups with high densities of black workers while the racial wage gap does not vary systematically with respect to racial density interpretation of racial gap estimates can be sensitive to inclusion of a racial density variable particularly in sparse specifications an explanation for the wage density relationship cannot be established but results are most consistent with a quality sorting explanation and to a lesser extent the crowding hypothesis

estimating the correlation structure of international share prices recently the case for international portfolio diversification has been convincingly argued in the framework of mean variance portfolio analysis by a number of researchers however virtually no empirical documentation exists concerning the best method for estimating the correlation structure of international share prices in this paper 12 models for estimating the international correlation matrix are presented and empirically tested relative to full historical extrapolation the major evaluation criteria are the mean squared error and stochastic dominance based on the frequency distribution of the squared forecast errors the results indicate that the national mean model strictly dominates all the others in terms of forecasting accuracy in the last fifteen years or so a number of researchers have convincingly argued the case for international portfolio diversification as opposed to purely domestic diversification in the framework of mean variance portfolio analysis see e g grubel 4 levy and sarnat 8 solnik 12 mcdonald 10 lessard 6 and subrahmanyam 15 1 in spite of the emerging consensus in the academic and investment communities that investors can benefit from international diversification in terms of a more efficient risk return tradeoff virtually no empirical documentation exists concerning the best method for estimating the correlation structure of international share prices since estimating this correlation structure is a necessary precondition for being able to apply modern portfolio theory to international investments empirical examination is of major importance moreover only through empirical examination of the correlation structure will the effort to devise a simple algorithm that can be used to solve for the optimal international portfolio be facilitated in order to trace out the set of ex ante efficient international porffolios using the tenets of modern portfolio theory the investor must obtain accurate estimates of the expected return and the variance of return for each domestic and foreign security and he must also obtain accurate estimates of the correlation coefficients of the returns between each pair of securities stated in terms of his numeraire

volatility linkages across three major equity markets a financial arbitrage approach abstract this paper investigates the high frequency behavior of us british and german stock market exuberance using an index provided by standard portfolio arbitrage relationships symmetric and asymmetric multivariate garch models are implemented to quantify international volatility linkages between january 1992 and april 2000 a shift in volatility transmission is detected from may 1997 onwards empirical analysis suggests that equity markets volatility modeling with exuberance indexes is more accurate than modeling with stock returns exuberance volatility comovements across countries are compared with the corresponding return comovements an interpretation of their discrepancy is provided in terms of bond and stock returns international covariation

search bargaining and employer discrimination this article analyzes becker s 1957 1971 theory of employer discrimination within a search and wage bargaining setting discriminatory firms pay workers who are discriminated against less and apply stricter hiring criteria to these workers the highest profits are realized by firms with a positive discrimination coefficient moreover once ownership and management are separated both highest profits and highest utility can be realized by firms with a positive discrimination coefficient thus market forces like entry or takeovers do not ensure that wage differentials due to employer discrimination disappear

when does a central bank s balance sheet require fiscal support abstract using a simple general equilibrium model we argue that it would be appropriate for a central bank with a large balance sheet composed of long duration nominal assets to have access to and be willing to ask for support for its balance sheet by the fiscal authority otherwise its ability to control inflation may be at risk this need for balance sheet support a within government transaction is distinct from the need for fiscal backing of inflation policy that arises even in models where the central bank s balance sheet is merged with that of the rest of the government

a decomposition method on employment and wage discrimination and its application in urban china 2002 2013 abstract labor market discrimination is an important issue in developing countries where path dependent institutions have been dominant while effective institutional arrangements and policies have been hidden by local customs and culture however the existing applications of classical blinder oaxaca decomposition face criticism for their imprecise understanding of the factors affecting institutional discrimination in labor markets as well as for their lack of power in formulating well targeted anti discrimination policies following oaxaca 1973 we propose a new method to decompose the total discrimination index tdi to analyze employment and wage discrimination in the labor markets of developing countries the tdi is decomposed into the employment discrimination index edi and the wage discrimination index wdi then into the underpayment index to majorities upi and the overpayment index to minorities opi we apply this method to the institutional discrimination against rural migrants in china s urban areas using national representative data from 2002 to 2013 we have found that 1 the tdi increased quickly after china entered the wto then dropped after anti discrimination policies were implemented 2 the tdi is mainly determined by the upi while the tdi s fluctuation is mainly determined by the wdi our method provides insights into the changing composition of employment and wage discrimination and their respective labor market outcomes in developing countries as a result appropriate policy measures may be developed accordingly

the brother in law effect ordinarily labor market equilibrium implies that the marginal worker is indifferent to employment and that the employer is indifferent between equally productive employees when the marginal worker is indifferent to employment employer preferences do not matter if however the marginal worker strictly prefers to be employed the employer can give favors and may wish to do so even at some cost to efficient production not only may inefficient workers be employed but the employer may also choose to employ too many workers we refer to this as the brother in law effect when the brother in law effect is due to unionization employment of brothers in law leads to increased employment under some circumstances leading even to over employment relative to the workforce that would be employed without unionization if the employment effect is strong because brothers in law are relatively good workers nepotism improves efficiency if the employment effect is weak including in principal agent models where there are informational rents nepotism is inefficient

nepotism discrimination and the persistence of utility maximizing owner operated firms comment a recent thoughtful paper by singell and thornton thereafter st in the southern economic journal deviates in definitions modeling and a result from the traditional literature on tastes for discrimination and nepotism that originates with becker and arrow this comment provides a critique of these three aspects of the st analysis in particular it shows that st s astonishing result that discrimination will persist in a competitive labor market is unjustified st s unconventional definitions of owners with unbiased and biased preferences are wrong and st s unique modeling of discrimination and nepotism is unsupported

strategic gains from discrimination abstract according to a classical argument an employer handicaps herself if basing hiring decisions on factors unrelated to productivity therefore discrimination is undermined by competition this paper in contrast argues that being discriminatory can be a commitment device that helps an employer and its rivals to partially segment the labor market which leads to lower wages and higher profits discrimination can thus be an endogenous response to competition indeed the relationship between discrimination and competition can be non monotone moreover the logic suggests that a ban on wage discrimination may instead lead to discrimination in hiring

prejudice and wages an empirical assessment of becker s the economics of discrimination we test the predictions from becker s 1957 seminal work on employer prejudice and find that relative black wages a vary negatively with the prejudice of the marginal white in a state b vary negatively with the prejudice in the lower tail of the prejudice distribution but are unaffected by the prejudice of the most prejudiced persons in a state and c vary negatively with the fraction of a state that is black our estimates suggest that one quarter of the racial wage gap is due to prejudice with nontrivial consequences for black lifetime earnings

nepotism discrimination and the persistence of utility maximizing owner operated firms reply much debate in the discrimination literature surrounds whether employers with biased preferences can persist in the market 7 10 this issue is a natural extension of the broader literature on owner operated firms which focuses on the consistency of utility and profit maximization 12 13 14 18 26 27 theories of owner operated firms which have a long history in economics model the entrepreneur as both a producer and consumer of goods that determines the level of production and consumption jointly through utility maximization 2 9 16 22 31 this approach is applied in this paper to examine employer discrimination and nepotism our analysis provides necessary conditions for utility maximizing firms to persist in the market and shows how biased preferences can yield seemingly uneconomic input and output choices that are in fact rationally inefficient empirical results using data on family farms support the prediction that utility maximizing entrepreneurs trade profit for nonmarket goods and do not hire inputs to maximize profits competitive neoclassical theories of the labor market do not provide a clear theoretical resolution to the issue of persistence of employer nepotism and discrimination the employer discrimination model proposed by becker 4 5 and extended by arrow 1 postulates that entrepreneurs maximize utility that increases with profit but decreases with a nonmarket attribute of some workers e g race ethnicity or gender these models predict that white male workers may initially have better market opportunities than comparable minority or female workers however entrepreneurs who hire based on nonproductive attributes are also predicted to earn less than a normal rate of return and because they derive disutility from an aspect of owning and operating a firm can improve their welfare by leaving the industry and converting firm assets to those that do not require employment decisions e g stocks and bonds this result has the important policy implication that market intervention may not be necessary to improve the relative pay and employment of disadvantaged groups when employers are the source of the discrimination alternatively goldberg 15 uses the arrow 1 framework but postulates that employers

the effects of competition and equal treatment laws on gender wage differentials discrimination if it is inefficient can be eliminated by competition in most countries it is also forbidden by law this paper evaluates the influence of economic and legal factors on the portion of male female wage differentials that is not explained by other worker characteristics and may be due to discrimination we use a new international data set of suitable gender wage gap measures constructed from the results of existing studies meta analysis of the data shows that increased competition and adoption of international conventions concerning equal treatment laws both reduce gender wage gaps while legislation that prevents women from performing strenuous or dangerous jobs tends to increase it doris weichselbaumer and rudolf winter ebmer

a non standard monetary policy shock the ecb s 3 year ltros and the shift in credit supply abstract we study the macroeconomic effects of the 3 year long term refinancing operations ltros introduced by the ecb in december 2011 with the aim of reducing the obstacles to credit supply through the mitigation of liquidity and funding risks in the euro area banking system therefore we interpret the measure as a credit supply shock which is identified both recursively and with sign restriction methods using the euro area bank lending survey bls the size of the shock due to the ltros is computed using both the april 2012 bls and the special ad hoc questions on the ltros conducted in february 2012 the counterfactual exercises suggest that the 3 year ltros lifted prospects for real gdp and loan provision to non financial corporations and increased goods prices over the next two to three years thereby avoiding a major credit crunch

gender differences in bargaining outcomes a field experiment on discrimination abstract relying on a commonly used fixed offer bargaining script we examine gender differences in bargaining outcomes in a highly competitive and frequently used market the taxi market in lima peru our bargaining script secures that only the seller can change prices and terminate negotiations thus we are able to examine differences in the seller s entire path of negotiation and in the reservation price at which they are willing to trade we find that male and female passengers who use the same bargaining script are not treated equally men face higher initial prices final prices and rejection rates these differences are consistent with male drivers being more reluctant to give in to demanding negotiations by male passengers and with male passengers being perceived as having high valuations to identify whether taste based or statistical discrimination drives the inferior treatment of men we conduct an experiment where passengers send a signal on valuation before negotiating the signal eliminates gender differences and the response is shown only to be consistent with statistical discrimination thus in the limiting case of a highly competitive market with experienced traders we do not find evidence of taste based discrimination the differential observed is however consistent with statistical discrimination

long term global market correlations the correlation structure of the world equity markets varied considerably over the past 150 years and was high during periods of economic integration we decompose diversification benefits into two parts one component due to variation in the average correlation across markets and a another component due to the variation in the investment opportunity set from this we infer that periods of globalization have both benefits and drawbacks for international investors globalization expands the opportunity set but as a result the benefits from diversification rely increasingly on investment in emerging markets

a multinomial logit nondiscriminatory approach to estimating racial wage and occupational discrimination this paper combines a technique to measure nondiscriminatory wage structures with a multinomial logit model to estimate both occupational racial discrimination and within occupation racial wage underpayment and overpayment using a recent south african october household survey it is found that racial discrimination against blacks and in favour of whites still persists in the south african labour market implying the persistence of white employer nepotism and or white employee discrimination

market reactions to ecb policy innovations a cross country analysis abstract regulators have been paying increasing attention to governing and steering market fluctuations with their role in shaping the economic cycle being ever more crucial the combined effect of the financial and sovereign debt crises as well as the approach to the zero lower bound has made actions even more pressing forcing the european central bank to resort to unconventional instruments to revive the economies and counter deflationary pressures by using a combined event study and panel regression methodology we investigate whether european monetary union equity markets react heterogeneously to standard and non standard european central bank policy innovations our results show that conventional policies unevenly affect financial indices in the eurozone and hence are bound to generate asymmetries that reflect on real economies while unconventional measures albeit with different intensities exercise a homogeneous pressure on all markets our evidence highlights the beneficial impact of unconventional measures and suggests that they can play a useful role even in non crisis times

discrimination nepotism and long run wage differentials the wage discrimination model developed by becker has been criticized for predicting that competitive forces will lead to the disappearance of racial discrimination in the long run we have reformulated the model in terms of nepotism toward white workers rather than discrimination against black workers in this new framework both nepotistic and taste neutral firms are expected to survive the competitive struggle in the long run therefore the new framework is consistent with long run as well as short run racial wage differentials

the influence of non pecuniary factors on labor supply the case of navy enlisted personnel this paper expresses the elasticity of labor supply to an occupation in terms of the variances and covariances of the distributions of non pecuniary factors across the alternative occupations we then apply our results to an analysis of reenlistment rates among navy enlisted personnel we argue that those navy skills experiencing a higher incidence of sea duty will have lower pay elasticities this prediction is confirmed empirically using probit analysis

the european sovereign debt crisis the origin and propagation of the european sovereign debt crisis can be attributed to the flawed original design of the euro in particular there was an incomplete understanding of the fragility of a monetary union under crisis conditions especially in the absence of banking union and other european level buffer mechanisms moreover the inherent messiness involved in proposing and implementing incremental multicountry crisis management responses on the fly has been an important destabilizing factor throughout the crisis after diagnosing the situation we consider reforms that might improve the resilience of the euro area to future fiscal shocks

the unconventional monetary policy of the european central bank effectiveness and transmission analysis since the beginning of the financial crisis in summer 2007 the european central bank ecb has redirected traditional monetary policy based on interest rates to an unconventional monetary policy focused on the quantitative expansion of its balance sheet in this context the present paper aims to assess the effectiveness of unconventional monetary policy instruments with regard to inflation and economic growth to this end the methodology is based on the estimation of a structural vector autoregressive model for the period 2007 q1 2018 q4 using four variables eonia the total amount of assets on the ecb s balance sheet the eurozone inflation rate and the eurozone economic growth rate the results show a slight impact of the different balance sheet policies on inflation and economic activity behaviour especially during the last year of the financial crisis the robustness of these results is supported by the estimation of the same model replacing eonia rates with shadow rates therefore the results support the existence of monetary transmission for the period during which the unconventional monetary policy was developed as well as the effectiveness of the monetary policy adopted by the ecb in its commitment to price stability

customer discrimination and affirmative action i introduction beginning with the work of becker 1957 economists have been concerned with the relationship between competitive market forces and the persistence of labor market discrimination 1 a major insight of becker and the literature that followed is that competition could tend to eliminate discriminatory pay differentials if competitive forces do eliminate discrimination then empirical findings of persistent discrimination are either a result of faulty testing or market imperfections economic analysis of the link between competition and discrimination depends on the origins of prejudice becker identified at least three possible sources employers co workers and consumers 2 in each of these instances the group against which prejudice is directed e g women or minorities which will be termed minorities in this paper may be able to escape discrimination first minorities can work for nondiscriminatory employers if there are any moreover stiglitz 1973 shows that with constant returns to scale such employers will take over markets from the discriminators eliminating any pay gap based on prejudice 3 second if there is co worker prejudice then minorities can work in segregated firms which under constant returns to scale may have a cost advantage over integrated or all majority firms again discrimination will be driven away 4 third minorities can theoretically escape customer discrimination by specializing in the production of goods for which there is no contact between producers and consumers a case discussed by cain 1986 while competitive forces may in some cases erode discriminatory wage differentials the rate of decline of race and sex wage differentials has evidently not been rapid enough in the eyes of policymakers u s anti discrimination policy has been guided by two major vehicles title vii of the 1964 civil rights act and the office of federal contract compliance programs ofccp 5 the equal employment opportunity commission eeoc was created to enforce title vii and is empowered to aid plaintiffs or bring suit itself against employers the commission monitors the employment practices of federal contractors not only are contractors barred from discrimination against protected groups these firms are also required to take affirmative action not to discriminate the purpose of this paper is twofold first it demonstrates that in a general equilibrium framework the case of customer discrimination is theoretically distinct from employer or co worker prejudice in particular while constant returns to scale and the existence of nondiscriminatory firms can eliminate the latter two forms of discrimination customer discrimination may persist even under such conditions the persistence of discriminatory wage differentials is shown to depend on consumer demand technology and the relative size of the minority labor force 6 second the general equilibrium framework is then used to evaluate the impact of government anti discrimination policy where customers are the source of discrimination it is shown that if the government requires equal pay and proportional representation for minorities then the resulting allocation of resources will under particular assumptions be the same as if customers did not discriminate i then contrast these theoretical results with the predicted general equilibrium impact of affirmative action when there is employer or co worker prejudice among previous general equilibrium models of affirmative action welch 1976 assumed no discrimination while freeman 1978 did not specify the source of discrimination it is shown here that the source of prejudice markedly affects one s conclusions about affirmative action further even in some cases where segregation has eliminated discriminatory wage differentials the introduction of affirmative action has allocative effects finally evidence from studies evaluating the impact of affirmative action is used to distinguish among the various equilibrium models

correlated arch corrarch modelling the time varying conditional correlation between financial asset returns abstract although the time variation of the conditional correlations of asset returns is a well established stylized fact and of crucial importance for efficient financial decisions there is no explicit general model available for its estimation and forecasting in this paper we propose a bivariate garch covariance structure in which conditional variances can follow any garch type process while conditional correlation is generated by an explicit discrete time stochastic process the corrarch process a high order corrarch can parsimoniously be represented by a corgarch process the model successfully generates the reported stylized facts establishes an autocorrelation structure for correlations and thus provides an explicit framework for out of sample forecasting we provide empirical evidence from the g7 stock market indexes

wage discrimination and population composition in the long run we derive the conditions that sign the effects of changing population composition on wage levels and ratios when labor supply and discrimination preferences vary the overall effect depends on an aggregate market a relative market and a preference distribution effect

the euro crisis the crisis in greece and other mainly southern eurozone countries has been discussed primarily as a fiscal issue current account deficits of the same countries have received less attention in spite of the relatedness of current account and fiscal deficits we argue that the failure of many countries within the eurozone to develop adequate internal adjustment mechanisms is also an important factor behind the crisis after reviewing the major perspectives that have been offered on the crisis we present data that support our argument by demonstrating the lack of price and cost convergence in the eurozone since 1999 ironically it seems that the surplus countries have carried out more of the adjustment pointed to by the endogenous optimum currency area oca theory than the deficit countries we recommend that the responsibility of a european debt surveillance authority should include surveillance of intra euro payment flows imbalances and adjustment in labour and goods markets and setting benchmarks for the eurozone guarantees of sovereign debt based on ability to adjust internally thereby a potential moral hazard problem of an implicit eurozone guarantee of countries sovereign debt could be avoided

the eurozone crisis how banks and sovereigns came to be joined at the hip the eurozone sovereign and banking crisis evolved in three phases following the onset of the subprime tremors in july 2007 the risk premia spreads on bonds issued by eurozone sovereigns rose from historically low levels but they rose largely in tandem across the eurozone membership along with global banking stresses the rescue of the us investment bank bear stearns in march 2008 oddly enough marked the start of a distinctively european banking crisis accompanied by increased differentiation of countries within the eurozone with the greater expectation of public support for distressed banks the spreads that a sovereign paid tended to rise following evidence of stress in its domestic financial sector this was especially so in countries with lower growth prospects and higher debt burdens but there was as yet no feedback from banks to sovereigns finally as the limits of fiscal support for domestic banks became clearer and coinciding with the nationalization of anglo irish in january 2009 but gathering steam with evidence of the greek sovereign s distress in may 2010 sovereign weaknesses also came to be quickly transmitted to a more pessimistic assessment of the financial sector s prospects creating the potential of mutual destabilization ashoka mody and damiano sandri

factor models and the correlation structure of interest rates some evidence for usd gbp dem and jpy abstract the aim of this paper is to develop models for producing accurate forecasts for the correlation of spot and forward interest rates correlation forecasts generated from factor models where the correlations are expressed as a function of few underlying factors are compared to forecasts produced by less sophisticated models like the full historical and constant correlation model contrary to previous studies where the selection of factors is rather arbitrary we test two factor identification methodologies the first is based on factor analysis and the second is based on minimising the residual cross correlations we show that a three factor model with factors identified by minimising the residual cross correlation criterion is sufficient to describe the correlation structure of interest rates furthermore we show that it might be preferable to assume that all forward rate correlations are equal rather than using a misspecified factor model and that the spot factor model developed consistently outperformed long established models like the barbell model

the effectiveness of the ecb s unconventional monetary policy comparative evidence from crisis and non crisis euro area countries abstract during the european financial crisis the european central bank implemented a series of unconventional monetary policy measures we argue that these programs lowered the bond yield spreads of euro area countries this hypothesis is tested using pooled ols estimations and two different datasets monetary policy event dummies and the purchase volumes of the securities markets programme smp overall we find significantly negative effects on bond yield spreads for both datasets leading us to accept the hypothesis while the omt reduces the spreads of both crisis and non crisis countries ltros and the lowering of the deposit rate to 0 percent are mainly effective in non crisis countries the smp lowers the spreads of crisis countries but it has the opposite effect on non crisis countries this converse effect is explained by the risk that increasingly accumulates on the ecb s balance sheet through the smp and that way constitutes a fiscal risk for non crisis countries the results are confirmed by pooled ols estimations that measure the effect of unconventional monetary policy on central government debt

inside the family firm the role of families in succession decisions and performance this paper uses a unique dataset from denmark to investigate the impact of family characteristics in corporate decision making and the consequences of these decisions on firm performance we focus on the decision to appoint either a family or an external chief executive officer ceo the paper uses variation in ceo succession decisions that result from the gender of a departing ceo s first born child this is a plausible instrumental variable iv as male firstchild firms are more likely to pass on control to a family ceo relative to female first child firms but the gender of a first child is unlikely to affect firms outcomes we find that family successions have a large negative causal impact on firm performance operating profitability on assets falls by at least four percentage points around ceo transitions our iv estimates are significantly larger than those obtained using ordinary least squares furthermore we show that family ceo underperformance is particularly large for firms in high growth industries and for relatively large firms overall the empirical results demonstrate that professional non family ceos provide extremely valuable services to the organizations they head

stability and forecasting of the comovement measures of international stock market returns abstract the potential benefits to international diversification may be less if the comovement structure of international equity returns is non stationary than if it is this paper examines the intertemporal stability of the correlation and the covariance structure of the returns of ten major stock markets whilst empirical evidence supports the hypothesis that the correlation structure is stable over time the empirical support for the stability of the covariance matrix is much weaker alternative forecasting models of the comovement structure are examined

endophilia or exophobia beyond discrimination the discrimination literature treats outcomes as relative but does a differential arise because agents discriminate against others exophobia or because they favour their own kind endophilia using a field experiment that assigned graders randomly to students examinations that did did not contain names we find favouritism but no discrimination by nationality nor by gender we are able to identify these preferences under a wide range of behavioural scenarios regarding the graders that endophilia dominates exophobia alters how we should measure discriminatory wage differentials and should inform the formulation of anti discrimination policy

announcements of ecb unconventional programs implications for the sovereign spreads of stressed euro area countries abstract this paper studies the effects of ecb communications about unconventional monetary policy operations on the sovereign spreads of greece ireland italy portugal and spain relative to germany between 2008 and 2012 more than fifty events concerning non standard operations are identified and classified with respect to the specific ecb program the empirical results suggest that the ecb announcements about unconventional monetary policies substantially reduced long term government bond yield spreads relative to german counterparts in all countries except greece particularly among the different types of measures news about the securities markets programme strongly affected the perceived sovereign risk of the five stressed euro area countries while the announcements of the outright monetary transactions seem to have a significant impact only in italy and spain

quantitative easing and unconventional monetary policy an introduction this article assesses the impact of quantitative easing and other unconventional monetary policies followed by central banks in the wake of the financial crisis that began in 2007 we consider the implications of theoretical models for the effectiveness of asset purchases and look at the evidence from a range of empirical studies we also provide an overview of the contributions of the other articles in this feature

competition small business financing and discrimination evidence from a new survey we analyze credit applications loan denials and interest rates paid by small businesses across owner gender race and ethnicity in addition we examine data from owners who said they did not apply for credit because they believed that their applications would have been turned down after controlling for a rich set of explanatory variables including personal and business credit histories substantial differences in denial rates between firms owned by african americans and white males remain moreover consistent with becker s classic theories 1957 we find evidence that increases in competition in the firm s local banking market reduces these differences

choosing agents and monitoring consumption a note on wealth as a corruption controlling device there are a large number of cases where corruption has been discovered when investigating levels of consumption that appear to be hard to justify the informativeness of an agent s level of consumption depends on his legal income and initial level of wealth as conspicuous consumption by wealthy agents leads to little updating of the principal s belief about their honesty this introduces a tendency to prefer poor agents as they are easier to monitor more generally we describe the basic problem of choosing agents and monitoring consumption with the aim of reducing corruption and discuss features of the practical applications castrated slaves called eunuchs were employed by sultans to guard their harems this solution to a particularly distressing principal agent problem is one instance of a general strategy that can be called choosing agents in this strategy the principal selects an agent to whom he is about to delegate a task based on an observable characteristic in the standard agency model it is clear that the agent s degree of risk aversion can be costly to the principal perhaps because of the difficulty in observing risk aversion few economists have emphasised the potential benefits of using particular types of agents an exception is schelling 1960 who discusses the use of agents with a low personal cost of conflict and mentions the strategic advantages of delegating authority to a military commander of known motivation a subsequent paper by vickers 1985 emphasises the potential value of hiring a manager who is committed to maximise the company s sales instead of profits similarly rogoff 1985 analyses the benefits of delegating the conduct of monetary policy to a conservative central banker in a setting where there is time inconsistency while rotemberg and saloner 2000

an equilibrium search model with coworker discrimination this article analyzes the effect of coworker discrimination on wage and unemployment differentials between males and females using a search model an increase in female participation drives up the wage offer to female workers and raises female employment moreover an increase in the degree of discrimination by males results in gains to them in terms of higher wages and lower unemployment but results in losses to females in terms of lower wages and higher unemployment the benefit to males provides an explanation for the persistence of discrimination