intertemporal pricing and price discrimination a semiparametric hedonic analysis of the personal computer market we apply a smooth coefficient semiparametric model to a unique high frequency data set to examine the intertemporal pricing of personal computers furthermore we test whether firms charge differential component prices for their top performance personal computers and whether premium firms charge both a premium for all their computers and a premium for their top performance ones we find nonlinear effects in the pricing of personal computer components we also find that firms in general do not charge differential prices for the components of their top performance computers in addition high quality firms charge higher premia only for their most advanced products copyright 2006 john wiley sons ltd

human capital and the risk of divorce an asset in search of a property right the new home economics 2 5 6 7 analyzes investments in human capital or children in terms of a model of household decision making traditionally a harmony of interests between the spouses is assumed to prevail and this is formalized by postulating a household utility function 9 or by assuming the maximization of the joint income of the husband and wife 6 recently the approach has been modified to admit the potential for marital disharmony 3 4 the present paper follows this lead and considers how family investments in each partner s human capital is conditioned by the risk of divorce the focus on human capital rather than say tangible capital is of particular interest because of this asset s illiquidity and the fact that the courts have generally not recognized the property rights of one spouse in the human capital acquired by the other during the marriage it demonstrates that the absence of property rights generally produces a sub optimal pattern of human capital investment specifically the risk of divorce leads to overinvestment in human capital with this outcome being more likely the greater the fragility of the marital relationship

the finance growth nexus evidence from bank branch deregulation this paper provides evidence that financial markets can directly affect economic growth by studying the relaxation of bank branch restrictions in the united states we find that the rates of real per capita growth in income and output increase significantly following intrastate branch reform we also argue that the observed changes in growth are the result of changes in the banking system improvements in the quality of bank lending not increased volume of bank lending appear to be responsible for faster growth

a comparative study of modelling the demand for food in the united states and the netherlands this paper provides time series and cross sectional budget survey analyses of the demand for food in the united states and the netherlands according to the tasks set by jan magnus and mary morgan mm various econometric methods including weighted least squares wls cointegration error correction the almost ideal demand system aids and time varying parameter tvp techniques are used and the estimated demand elasticities compared across country and over time 1997 john wiley sons ltd

did unilateral divorce laws raise divorce rates a reconciliation and new results application of the coase theorem to marital bargaining suggests that shifting from a consent divorce regime to no fault unilateral divorce laws should not affect divorce rates each iteration of the empirical literature examining the evolution of divorce rates across us states has yielded different conclusions about the effects of divorce law liberalization i show that these results reflect a failure to jointly consider both the political endogeneity of these divorce laws and the dynamic response of divorce rates to a shock to the political regime taking explicit account of the dynamic response of divorce rates to the policy shock i find that liberalized divorce laws caused a discernible rise in divorce rates for about a decade but that this increase was substantially reversed over the next decade that said this increase explains very little of the rise in the divorce rate over the past half century both administrative data on the flow of new divorces and measures of the stock of divorcees from the census support this conclusion these results are suggestive of spouses bargaining within marriage with an eye to their partner s divorce threat

crime rates and local labor market opportunities in the united states 1979 1997 the labor market prospects of young unskilled men fell dramatically in the 1980s and improved in the 1990s crime rates show a reverse pattern increasing during the 1980s and falling in the 1990s because young unskilled men commit most crime this paper seeks to establish a causal relationship between the two trends previous work on the relationship between labor markets and crime focused mainly on the relationship between the unemployment rate and crime and found inconclusive results in contrast this paper examines the impact of both wages and unemployment on crime and uses instrumental variables to establish causality we conclude that both wages and unemployment are significantly related to crime but that wages played a larger role in the crime trends over the last few decades these results are robust to the inclusion of deterrence variables controls for simultaneity and controlling for individual and family characteristics

inequality and violent crime abstract we investigate the robustness and causality of the link between income inequality and violent crime across countries first we study the correlation between the gini index and homicide and robbery rates within and between countries second we examine the partial correlation by considering other crime determinants third we control for the endogeneity of inequality by isolating its exogenous impact on these crime rates fourth we control for measurement error in crime rates by modeling it as both unobserved country effects and random noise finally we examine the robustness of this partial correlation to alternative measures of inequality the panel data consist of nonoverlapping 5 year averages for 39 countries during 1965 95 for homicides and 37 countries during 1970 94 for robberies crime rates and inequality are positively correlated within countries and particularly between countries and this correlation reflects causation from inequality to crime rates even after controlling for ot

foreclosures house prices and the real economy from 2007 to 2009 states without a judicial requirement for foreclosures were twice as likely to foreclose on delinquent homeowners analysis of borders of states with differing foreclosure laws reveals a discrete jump in foreclosure propensity as one enters nonjudicial states using state judicial requirement as an instrument for foreclosures we show that foreclosures led to a large decline in house prices residential investment and consumer demand from 2007 to 2009 as foreclosures subsided from 2011 to 2013 the foreclosure rates in nonjudicial and judicial requirement states converged and we find some evidence of a stronger recovery in nonjudicial states

changing the price of marriage evidence from blood test requirements abstract we use state repeals of blood test requirements btrs for a marriage license that occurred between 1980 and 2008 to examine the impact of changes in the price of marriage on the marriage decision using a within group estimator that holds constant state and year effects and exploits variation in the repeal dates of btrs across states we find that btrs are associated with a 6 1 percent decrease in marriage licenses issued by a state this main finding is supported with results from individual level marriage license and current population survey data the largest effects are found for lower socioeconomic groups

empirical implications of alternative models of firm dynamics abstract this paper considers two models of firm behavior that allow for heterogeneity among firms idiosyncratic or firm specific sources of uncertainty and discrete outcomes exit and or entry both the characteristics of firm level panel data sets and the nature of the questions we characteristically ask of them imply that models with these features are likely to underlie most detailed empirical work on microdata sets the models we consider are a bayesian learning model due to jovanovic 20 and a model of research and exploration due to ericson and pakes 11 the paper provides a simple set of empirical procedures to help determine which if either of these two models might be appropriate for alternative data sets we conclude by checking for the implications of the two models on an eight year panel of wisconsin firms the results indicate that one model is consistent with the data on manufacturing firms while the other is consistent with the data on retail trade journal of economic literature classification numbers c52 l60 l80

the family as the health producer when spouses are nash bargainers the grossman model is extended to a situation in which the family is regarded as the producer of individual health and spouses are nash bargainers the model has implications for the interaction between family structure income and the stocks of health capital and the bargaining strength of different family members the main insight is that the possibility of divorce affects the distribution of health capital between family members we analyse inter alia the impact on the distribution of health particularly regarding child health of changes in family policies related to the dissolution of the family

how do sales efforts pay off dynamic panel data analysis in the nerlove arrow framework this paper evaluates the short and long term value of sales representatives detailing visits to different types of physicians by understanding the dynamic effect of sales calls across heterogene

bank mergers and crime the real and social effects of credit market competition using a unique sample of commercial loans and mergers between large banks we provide micro level within county evidence linking credit conditions to economic development and find a spillover effect on crime neighborhoods that experience more bank mergers are subject to higher interest rates diminished local construction lower prices an influx of poorer households and higher property crime in subsequent years the elasticity of property crime with respect to merger induced banking concentration is 0 18 we show that these results are not likely due to reverse causation and confirm the central findings using state branching deregulation to instrument for bank competition we examine the real and social impact of local credit competition by documenting a link between the competitiveness of the local banking market credit conditions urban development and crime several recent studies peek and rosengren 2000 cetorelli and gambera 2001 klein peek and rosengren 2002 and burgess and pande 2003 tie credit market imperfections to diminished real economic activity and growth other studies connect the economic environment to property crime freeman 1999 levitt 2001 raphael and winter ebmer 2001 and nilsson 2004 it is reasonable to hypothesize therefore that reductions in bank competition may lead to economic decline and subsequently increases in property crime we empirically investigate the effects of bank consolidation and increased market power on credit availability and real activity using a unique sample of commercial loans and mergers between large banks in the 1990s we provide micro level evidence that garmaise is from the ucla anderson school and moskowitz is from the graduate school of business university of chicago and nber we have benefited from the suggestions and comments of tony bernardo marianne bertrand phillip bond doug diamond mark duggan eugene fama

house prices home equity based borrowing and the u s household leverage crisis us household leverage sharply increased in the years preceding the 2007 eco nomic recession the top panel of figure 1 shows the steady rise in household debt since 1975 which accelerated beginning in 2002 in just five years the household sector doubled its debt balance in comparison the contemporaneous increase in corporate debt was modest the middle panel shows that the increase in household debt from 2002 to 2007 translated into a striking rise in household leverage as mea sured by the debt to income ratio during the same time period corporate leverage declined the dramatic absolute and relative rise in us household leverage from 2002 to 2007 is unprecedented compared to the last 25 years one reason for the rapid expansion in household leverage during this period is that mortgage credit became more easily available to new home buyers mian and sufi 2009 strong house price appreciation from 2002 to 2006 however which may have been fueled by the availability of mortgage credit to a riskier set of new home buyers could also have had an important feedback effect on household lever age through existing homeowners given that 65 percent of us households already owned their primary residence before the acceleration in house prices the feedback from house prices to borrowing may be an important source of the rapid rise in household leverage that preceded the economic downturn our central goals in this study are to estimate how homeowner borrowing responded to the increase in house prices and to identify which homeowners responded most aggressively we examine this home equity based borrowing channel using a dataset consisting of anonymous individual credit files of a national consumer credit bureau agency we follow a random sample of over 74 000 us homeowners who owned their homes as of 1997 at an annual frequency from the end of 1997 until the end of 2008 the bottom panel of figure 1 plots the growth in debt of 1997 homeowners over time and shows that existing homeowners borrow significantly more debt as their house prices appreciate from 2002 to 2006 while the aggregate trend is suggestive

the price concentration relationship in banking the commonly observed positive correlation between market concentration and profitability may be explained by noncompetitive pricing behavior as argued by the structure performance hypothesis or by the greater efficiency of firms with dominant market shares as argued by the efficient structure hypothesis by examining the price concentration relationship instead of the profit concentration relationship this paper tests the structure performance hypothesis in a manner that excludes the efficient structure hypothesis as an alternative explanation of the results the results strongly support the structure performance hypothesis and are robust with respect to model specification measurement of concentration and econometric technique copyright 1989 by mit press

the paradox of the pill heterogeneous effects of oral contraceptive access the twentieth century saw dramatic increases in nonmarital births concentrated heavily among poor and working class women in this paper we investigate whether the oral contraceptive pill played a causal role in the rise of nonmarital births exploiting exogenous variation in laws governing access to the pill we find that changes in marital access to the pill increased the nonmarital birthrate by between 15 and 18 accounting for about one third of the overall increase in nonmarital births these effects are concentrated almost entirely among women whose fathers did not graduate high school and among minority women we also document that the pill increased spacing between first and second births and lowered the probability that a woman obtained a high school diploma consistent with increases in nonmarital births we find no evidence that postsecondary education levels were influenced by pill access and no evidence that nonmarital births move with male employment patterns our findings add to a growing literature which documents the power of the pill to shape women s lives in broadly heterogenous ways with minority and less well educated women bearing the brunt of the losses a phenomenon we call the paradox of the pill jel j12 j13 i24

how to carve a medical degree human capital assets in divorce settlements this paper examines effects of the legal rules for property division at divorce on investment in human capital during marriage the authors show that current rules generally lead to suboptimal levels of investment and spousal support or to inequitable distribution of the returns from such investment or both they propose a new rule that performs better than the existing rules on both efficiency and equity criteria and that requires no more information than the existing rules copyright 1989 by american economic association

transfers among divorced couples evidence and interpretation we analyze divorce settlements made by a cohort of whites who graduated from high school in 1972 the effects of spouses incomes on the divorce transfer are estimated and used to simulate the welfare effects of divorce on husbands wives and children under alternative assumptions about marriage contracts and the ability of a couple to continue coordinating resources in the aftermath of divorce we find a positive negative relationship between divorce transfers and the growth of husband s wife s earnings during marriage the estimated expenditure on children in the divorce state is only half the accustomed level during marriage

a natural experiment of the effect of advertising on sales the sasol case the effect of advertising in a major product category petrol on the market share of a brand petrol produced by sasol of south africa was estimated using variants of a koyck distributed lag model our use of a single equation model was supported by granger causality tests showing that advertising caused sales but that sales did not simultaneously cause advertising the situation is a unique natural experiment in that non promotional variables in the marketing mix price location of sale and product characteristics are largely invariant between sasol s petrol and competing brands allowing isolation of the effect of advertising on market share dummy variables were used to allow for the varying effect of different advertising campaigns and thus allow for the quality of advertising copy the results supported the hypotheses that sales are determined by past as well as current advertising expenditures but that the cumulative effects of advertising lasts for months rather than years the major finding

nonparametric estimation of the effects of advertising the case of lydia pinkham this article reexamines some of the issues raised subsequent to the classical research by palda 1964 we use a nonparametric estimation method that allows us to incorporate both seasonal and smoothness constraints to estimate the parameters of a demand function using monthly data on lydia pinkham s vegetable compound the analysis indicates that the parameters of the estimated demand equation are not constant throughout the long period of the data which covers the whole life cycle of the product

seasonality in dynamic regression models this paper examines the implications of treating seasonality as an unobserved component which changes slowly over time this approach simplifies the specification of dynamic relationships by separating non seasonal from seasonal factors we illustrate this approach using the consumption model of davidson et al 1978 and estimate a stable error correction model between consumption income and prices over the period 1958 92 more generally we argue that autoregressive models are unlikely to successfully model slowly changing seasonality and may confound seasonal effects with the dynamic responses of prime interest our approach can be used in a wide range of cases and we show that there is little loss in efficiency even if seasonality is deterministic

impact of changes in marriage law implications for fertility and school enrollment does the postponement of marriage affect fertility and investment in human capital i study this question in the context of a 1957 amendment to the mississippi marriage law that was aimed at delaying the age of marriage changes included raising the minimum age for men and women parental consent requirements compulsory blood tests and proof of age using a difference indifferences design at the county level i find that overall marriages per 1 000 in the population in mississippi and its neighboring counties decreased by nearly 75 percent the crude birth rate decreased between 2 and 6 percent and school enrollment increased by 3 percent after the law was enacted by 1960 an unintended consequence of the law change was that illegitimate births among young black mothers increased by 7 percent i show that changes in labor market conditions during this period cannot explain the changes in marriages births and enrollment i conclude that stricter marriage related regulations that lead to a delay in marriage can postpone fertility and increase school enrollment

the impact of divorce laws on marriage specific capital this article considers how divorce law alters the incentives for couples to invest in their marriage focusing on the impact of unilateral divorce laws on investments in new marriages differences across states between 1970 and 1980 provide useful quasi experimental variation with which to consider incentives to invest in several types of marriagespecific capital spouse s education children household specialization and home ownership i find that adoption of unilateral divorce regardless of the prevailing property division laws reduces investment in all types of marriage specific capital considered except home ownership in contrast results for home ownership depend on the underlying property division laws

altruism and beyond an economic analysis of transfers and exchanges within families and groups 1 introduction 2 altruism transfers and wellbeing 3 the timing of intergenerational transfers an implication 4 an exchange implication of transfers the demonstration effect 5 transfers by migrants a strategic motive for remittances 6 exchange with recognition costs an explanation of migrants performance 7 intrafamilial transfers and exchanges forming and sustaining altruism

inequality and crime this paper considers the relationship between inequality and crime using data from urban counties the behavior of property and violent crime are quite different inequality has no effect on property crime but a strong and robust impact on violent crime with an elasticity above 0 5 by contrast poverty and police activity have significant effects on property crime but little on violent crime property crime is well explained by the economic theory of crime while violent crime is better explained by strain and social disorganization theories

the contagion effect of foreclosed properties although previous research shows that prices of homes in neighborhoods with foreclosures are lower than those in neighborhoods without foreclosures it remains unclear whether the lower prices are the result of a general decline in neighborhood values or whether foreclosures reduce the prices of nearby non distressed sales through a contagion effect we provide robust evidence of a contagion discount by simultaneously estimating the local price trend and the incremental price impact of nearby foreclosures at its peak the discount is roughly 1 per nearby foreclosed property the discount diminishes rapidly as the distance to the distressed property increases the contagion discount grows from the onset of distress through the foreclosure sale and then stabilizes this pattern is consistent with the contagion effect being the visual externality associated with deferred maintenance and neglect

does local financial development matter we study the effects of differences in local financial development within an integrated financial market we construct a new indicator of financial development by estimating a regional effect on the probability that ceteris paribus a household is shut off from the credit market by using this indicator we find that financial development enhances the probability an individual starts his own business favors entry of new firms increases competition and promotes growth as predicted by theory these effects are weaker for larger firms which can more easily raise funds outside of the local area these effects are present even when we instrument our indicator with the structure of the local banking markets in 1936 which because of regulatory reasons affected the supply of credit in the following 50 years overall the results suggest local financial development is an important determinant of the economic success of an area even in an environment where there are no frictions to capital movements

liquidation values and the credibility of financial contract renegotiation evidence from u s airlines how do liquidation values affect financial contract renegotiation while the incomplete contracting theory of financial contracting predicts that liquidation values determine the allocation of bargaining power between creditors and debtors there is little empirical evidence on financial contract renegotiations and the role asset values play in such bargaining this paper attempts to fill this gap we develop an incomplete contracting model of financial contract renegotiation and estimate it using data on the airline industry in the united states we find that airlines successfully renegotiate their lease obligations downward when their financial position is sufficiently poor and when the liquidation value of their fieet is low our results show that strategic renegotiation is common in the airline industry moreover the results emphasize the importance of the incomplete contracting perspective to real world financial contract renegotiation

securitization and loan performance ex ante and ex post relations in the mortgage market this study examines the relation between securitization and loan performance using a comprehensive dataset from a major national mortgage lender loans remaining on the bank s balance sheet ex post incurred higher delinquency rates than sold loans contrasting the negative relation between screening efforts and ex ante probability of loan sale explored by prior studies moreover the performance gap between sold and retained loans was wider among the subsample of loans that were perceived as easier to resell the investors seeming advantage over the originating bank can mostly be explained by information revealed during the time between loan origination and sale

crime and social interactions the high variance of crime rates across time and space is one of the oldest puzzles in the social sciences this variance appears too high to be explained by changes in the exogenous costs and benefits of crime we present a model where social interactions create enough covariance across individuals to explain the high cross city variance of crime rates this model provides an index of social interactions which suggests that the amount of social interactions is highest in petty crimes moderate in more serious crimes and almost negligible in murder and rape

securitization and distressed loan renegotiation evidence from the subprime mortgage crisis abstract we examine whether securitization impacts renegotiation decisions of loan servicers focusing on their decision to foreclose a delinquent loan conditional on a loan becoming seriously delinquent we find a significantly lower foreclosure rate associated with bank held loans when compared to similar securitized loans across various specifications and origination vintages the foreclosure rate of delinquent bank held loans is 3 to 7 lower in absolute terms 13 to 32 in relative terms there is a substantial heterogeneity in these effects with large effects among borrowers with better credit quality and small effects among lower quality borrowers a quasi experiment that exploits a plausibly exogenous variation in securitization status of a delinquent loan confirms these results

marital investments time consistency and emotions abstract a benchmark model of a married couple s educational investment yields an inefficient outcome due to the possibility of opportunistic divorce motivated by findings in social psychology i use psychological game theory to incorporate belief dependent guilt feelings multiple equilibria become possible some marriages have inefficient under investment some have efficient outcomes and preclude divorce if guilt is sufficiently important a life long efficient marriage is implied because a spouse may signal a trust so strong as to force the partner to hold beliefs that make divorce unattractive

advertising quality and sales this paper investigates claims that firm specific effects in advertising sales models can be attributed to a positive correlation between advertising and product quality using a standard koyck transformation on an unbalanced panel dataset of uk firms the implied long lasting effects of advertising disappear when firm specific effects are taken into account this conclusion is robust to various econometric approaches however when the firm specific effects are retrieved they are found to correlate strongly with mean advertising there is no discernible link between the firm specific effects and whether a firm perceives quality to be an important form of competition in its market the results give no support to the idea that advertising affects sales through associated product quality they are consistent with the persistence of advertising within firms over time

abortion legalization and child living circumstances who is the marginal child weexaminethe impact ofincreased abortion availabilityon the averageliving standards of children through a selection effect would the marginal child whowas not born have grown up in different circumstances than the average child we use variation in the timing of abortion legalization across states to answer this question cohorts born after legalized abortion experienced a signiecant reduction in a number of adverse outcomes we end that the marginal child would have been 40 60 percent more likely to live in a single parent family to live in poverty to receive welfare and to die as an infant access to abortion is one of the most contentious public policy issues facing the united states today the period since the legalization of abortion under the roe v wade decision of 1973 has been marked by incessant debate over the appropriate government enancing and legal status of abortions meanwhile pregnancy resolution through abortion is a very common outcome in the united states roughly 25 percent of all pregnancies are aborted ventura et al 1995 as a result major changes in abortion access could have substantial effects on the birthrate indeed levine staiger kane and zimmerman end that the legalization of abortion in the early 1970s led to an 8 percent reduction in the birthrate 1

credit supply and the price of housing we show that since 1994 branching deregulations in the u s have signi cantly af fected the supply of mortgage credit and ultimately house prices with deregulation the number and volume of originated mortgage loans increase while denial rates fall but the deregulation has no eect on a placebo sample formed of mortgage compa nies that should not be aected by the regulatory change this sharpens the causal interpretation of our results deregulation acts to relax access to mortgage credit and pushes the demand for house ownership outwards interestingly the fraction of securi tized mortgage loans remains unchanged through the process we nd evidence house prices rise with branching deregulation and particularly in metropolitan areas where construction is inelastic for topographic reasons we document these results in a large sample of counties across the u s we also focus on a reduced cross section formed by counties on each side of a state border where a regression discontinuity approach is possible our conclusions are strengthened jel classi cation numbers g21 g10 g12

do substantial horizontal mergers generate significant price effects evidence from the banking industry this study examines the price effects of recent us bank mergers that substantially increased local market concentration using the deposit interest rates that banks offer their customers as our price measure we find that over the 1991 94 time period deposit rates offered by participants in substantial horizontal mergers and their local market rivals declined by a greater percentage than did deposit rates offered by banks not operating in markets in which such mergers took place we interpret our results as evidence that these mergers led to increased market power

troubled banks impaired foreign direct investment the role of relative access to credit during the 1980 s theories were developed to explain the striking correlation between real exchange rates and foreign direct investment fdi however this relationship broke down for japanese fdi in the 1990 s as the real exchange rate appreciated while fdi plummeted we propose the relative access to credit hypothesis and show that unequal access to credit by japanese firms contributes to the explanation of declining japanese fdi using bank level and firm level data sets we find that financial difficulties at banks were economically and statistically important in reducing the number of fdi projects by japanese firms into the united states jel g21 f36

the determinants of attitudes towards strategic default on mortgages we use survey data to measure households propensity to default on mortgages even if they can afford to pay them strategic default when the value of the mortgage exceeds the value of the house the willingness to default increases in both the absolute and the relative size of the home equity shortfall our evidence suggests that this willingness is affected by both pecuniary and non pecuniary factors such as views about fairness and morality we also find that exposure to other people who strategically defaulted increases the propensity to default strategically because it conveys information about the probability of being sued

cointegration analysis of the advertising sales relationship the examination of stochastic properties of the annual advertising and sales data from the lydia pinkham company reveals that the series are cointegrated and therefore possess a long run equilibrium condition according to the estimates of the error correction model of the series in the short run advertising is found to be more responsive than sales in adjustments to eliminate departures from the long run equilibrium condition the author s analysis in general implies that the observed business firms decision rules fixing advertising spending as a percentage of sales revenue may hold as a long run equilibrium condition copyright 1991 by blackwell publishing ltd

semiparametric analysis to estimate the deal effect curve abstract the marketing literature suggests several phenomena that may contribute to the nature of the relationship between sales and price discounts these phenomena can produce complex nonlinearities and interactions in the deal effect curve that are best captured with a flexible approach because a fully nonparametric regression model suffers from the curse of dimensionality the authors propose a semiparametric regression model store level sales over time are modeled as a nonparametric function of own and cross item price discounts and a parametric function of other predictors the authors compare the predictive validity of the semiparametric model with that of two parametric benchmark models and obtain superior performance the results for three product categories indicate threshold and saturation effects for both ownand cross item temporary price cuts the authors also find that the nature of the own item curve depends on other items price discounts comparisons with restricted model specification

did unilateral divorce raise divorce rates evidence from panel data since early 1996 at least eight states have begun to consider rolling back unilateral and no fault divorce a major reversal of the liberalizing trend in divorce laws which began around 1970 the proponents of tightening the divorce regime often argue that making divorce more difficult will strengthen families however both theoretical and empirical evidence is decidedly mixed over whether the no fault revolution actually contributed to the sharp increase in divorce rates in the united states observed over the last 30 years in this paper i address the dispute by using a panel of state level divorce rates including state specific trends allows unobserved state divorce propensities to trend linearly and even quadratically over time and reveals that unilateral divorce raised divorce rates significantly and strongly excerpt

how the other half lived marriage and emancipation in the age of the pill abstract the contraceptive pill was fda approved in 1960 however it would be another decade before young unmarried women had full access in the meantime marriage constituted a way to the pill the later 1960s early 1970s also saw a convergence on 18 as the minimum age of marriage many states lowering it from 21 exploiting these law changes we find that a lowered minimum age precipitated marriage delayed marital fertility and improved women s educational and occupational outcomes marriage easing credit constraints combined with the contraceptive properties of the pill form the hypothesized pathway

innovation and the evolution of market structure this paper examines the association between innovation and the evolution of market structure a dynamic model of market concentration is applied to seventy three u k industries 1970 79 and the results are found to be consistent with the hypothesis that innovation is deconcentrating the results reported here and those contained in earlier work combine to suggest that innovation and changes in market concentration interact in a relatively rapid mutually reinforcing but rather weak spiral of increased innovation and decreasing concentration copyright 1990 by blackwell publishing ltd

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

identifying the effect of unemployment on crime abstract in this paper we analyze the relationship between unemployment and crime using u s state data we estimate the effect of unemployment on the rates of seven felony offenses we control extensively for state level demographic and economic factors and estimate specifications that include state specific time trends state effects and year effects in addition we use prime defense contracts and a state specific measure of exposure to oil shocks as instruments for unemployment rates we find significantly positive effects of unemployment on property crime rates that are stable across model specifications our estimates suggest that a substantial portion of the decline in property crime rates during the 1990s is attributable to the decline in the unemployment rate the evidence for violent crime is considerably weaker however a closer analysis of the violent crime of rape yields some evidence that the employment prospects of males are weakly related to state rape rates

the effect of prison population size on crime rates evidence from prison overcrowding litigation simultaneity between prisoner populations and crime rates makes it difficult to isolate the causal effect of changes in prison populations on crime to break that simultaneity this paper uses prison overcrowding litigation in a state as an instrument for changes in the prison population the resulting elasticities are two to three times greater than those of previous studies a one prisoner reduction is associated with an increase of fifteen index i crimes per year while calculations of the costs of crime are inherently uncertain it appears that the social benefits associated with crime reduction equal or exceed the social costs of incarceration for the marginal prisoner

promises and conventions an approach to pre play agreements abstract i analyze how informal agreements can be sustained by moral emotions with regard to a large class of two player games specifically i assume that people feel guilty if they breach an agreement and that the guilt increases according to the degree of the harm inflicted on the other a central insight is that it is easier to sustain efficient informal agreements if actions are strategic complements than if they are strategic substitutes i complement this general insight by studying two specific cases where negotiators face uncertainty about the breach of the agreement i show that while the optimal agreement in a game with strategic substitutes must compromise on surplus maximization and efficiency the optimal agreement in a game with sufficiently strong strategic complements tends to maximize both the surplus and the probability of compliance especially if the game is symmetric

intra household experiments a survey experiments with family groups are rare but since many decisions are taken at the household level or occur within the household it is an important area to investigate this paper provides a survey of the recent experimental work on intra household decision making i discuss some of the challenges involved in doing experiments with couples and families and consider major areas that remain yet to be explored while general themes from the research are still emerging four results repeatedly occur 1 the absence of efficiency in intra household decisions 2 joint decisions that are not a convex combination of individual decisions 3 individual behaviour is affected by opportunities for hiding actions from spouses and 4 deviations from standard models of microeconomics in line with those seen in the anomalies literature of individual decision making

an analysis of out of wedlock childbearing in the united states this paper relates the erosion of the custom of shotgun marriage to the legalization of abortion and the increased availability of contraception to unmarried women in the united states the decline in shotgun marriage accounts for a significant fraction of the increase in out of wedlock first births several models illustrate the analogy between women who do not adopt either birth control or abortion and the hand loom weavers both victims of changing technology mechanisms causing female immiseration are modeled and historically described this technology shock hypothesis is an alternative to welfare and job shortage theories of the feminization of poverty excerpt

productivity analysis of u s manufacturing using a stochastic coefficients production function in this article we show that the production aggregation and estimation theories that lead to a stochastic coefficients production function are more general than those leading to a fixed coefficients production function estimates of productivity changes implied by these two types of cobb douglas production functions are compared for several u s manufacturing sectors for the period 1955 1982 all of the estimates of the stochastic coefficients cobb douglas function have the right algebraic sign for all industries considered whereas some of the estimates of its fixed coefficients counterpart have the wrong sign

children and their parents a review of fertility and causality childbearing decisions are not made in isolation they are taken in concert with decisions regarding work marriage health investments and stocks as well as many other observable and non observable considerations drawing causal inferences regarding the effect of additional children on family outcomes is complicated by these endogenous factors this paper lays out the issues involved in estimating the effect of additional child births on family outcomes and the assumptions underlying the range of estimators and methodologies proposed in the economic literature the common pitfalls of these estimators are discussed as well as their potential to bias our interpretation of the effect additional births have on children and parents both in the existing literature and in future work in the face of changing patterns of childbearing and child rearing

forced sales and house prices the market for housing differs in several important ways from the textbook model of a liquid asset market with exogenous fundamentals this implies that the price at which a house is sold can be influenced not only by general supply and demand conditions but also by idiosyncratic factors including the urgency of the sale and the effects of the ownership transfer on the physical quality of the house first houses are productive only when people are living in them owning an empty house is equivalent to throwing away the dividend on a financial asset second houses are fragile assets that need maintenance and are vulnerable to van dalism unoccupied houses are particularly vulnerable and expensive to protect third short term rental contracts involve high transactions costs resulting from the moving costs of renters and the need of homeowners to protect their property against damage fourth houses are expensive indivisible and heterogeneous assets each house has certain unique characteristics which are likely to appeal to certain poten tial buyers and not to others so selling a house requires matching it with an appro priate buyer because of the high costs of intermediation in housing this task is normally undertaken by a real estate broker rather than a dealer fifth most home owners must finance their purchases using mortgages collateralized debt contracts that transfer home ownership to the mortgage lender through a foreclosure process if the homeowner defaults the expansion of mortgage credit in the early 2000s and the recent decline in house prices have led to an unprecedented increase in foreclosures since 2006 foreclosures transfer houses to financial institutions which must maintain and pro tect them until they can be sold foreclosed houses are likely to sell at low prices both because they may have been physically damaged during the foreclosure pro cess and because financial institutions have an incentive to sell them quickly in a liquid market an asset can be sold rapidly with a minimal impact on its price but

the determinants of employee crime in the uk we present evidence on employee theft in the uk using data on actual recorded crime in a model where employees are rational cheaters whose theft decisions may also be influenced by individual characteristics we produce hypotheses about the role of labour market deterrence and individual influences on employee theft we then examine the role of these influences using regional crime data supplemented by data from the uk labour force survey and the home office our results provide information on employee theft as a particular type of crime on policy that may help to combat it and on alternative views of the motivation for crime

temporal aggregation the data interval bias and empirical estimation of bimonthly relations from annual data in an important study reviewing the literature on econometric studies of the relationship between advertising and sales clarke clarke darral g 1976 econometric measurement of the duration of advertising effects on sales j marketing res 13 november 345 357 concluded that the implied duration interval of the effects of advertising on sales were too long when the studies used annual data a theoretical explanation is provided here for the observation of parameter estimates which vary with the data interval employed in the analysis parameter estimates are developed on the basis of data aggregated at various levels of temporal aggregation and compared with theoretical values it is demonstrated that it is possible to recover bimonthly parameters when only annual data are available

the durability of advertising revisited recent cross section studies find that advertising is relatively long lived providing support for treating advertising as capital this paper models the firm s advertising decision treating advertising and product quality as complements the model predicts that failing to control for differences in firm specific factors positively correlated with the return to advertising will understate advertising s direct effect on sales and overstate its durability the authors empirical study using several years of data for over four hundred firms confirms these predictions advertising s apparent life shrinks dramatically when firm specific factors are held constant they also find no support for the steady state assumptions critical to intangible assets models copyright 1994 by blackwell publishing ltd

why don t lenders renegotiate more home mortgages redefaults self cures and securitization we document the fact that servicers have been reluctant to renegotiate mortgages since the foreclosure crisis started in 2007 having performed payment reducing modifications on only about 3 percent of seriously delinquent loans we show that this reluctance does not result from securitization servicers renegotiate similarly small fractions of loans that they hold in their portfolios our results are robust to different definitions of renegotiation including the one most likely to be affected by securitization and to different definitions of delinquency our results are strongest in subsamples in which unobserved heterogeneity between portfolio and securitized loans is likely to be small and for subprime loans we use a theoretical model to show that redefault risk the possibility that a borrower will still default despite costly renegotiation and self cure risk the possibility that a seriously delinquent borrower will become current without renegotiation make renegotiation unattractive to investors

more power to the pill the impact of contraceptive freedom on women s life cycle labor supply the release of enovid in 1960 the first birth control pill afforded u s women unprecedented freedom to plan childbearing and their careers this paper uses plausibly exogenous variation in state consent laws to evaluate the causal impact of the pill on the timing of first births and extent and intensity of women s labor force participation the results suggest that legal access to the pill before age 21 significantly reduced the likelihood of a first birth before age 22 increased the number of women in the paid labor force and raised the number of annual hours worked

the family as the health producer when spouses act strategically the grossman model has been extended recently in order to take account of the fact that most people lead their lives in a family using frameworks in which family members respectively a have common preferences and b are nash bargainers these models however do not consider individual incentives for behaving strategically in the model presented in this paper spouses interact strategically both in the production of own health and in the production of health of other family members we analyse inter alia the impact on the distribution of health of changes in family policies such as child allowance and custody rules

incomplete information models of guilt aversion in the trust game in the theory of psychological games it is assumed that players preferences on material consequences depend on endogenous beliefs most of the applications of this theoretical framework assume that the psychological utility functions representing such preferences are common knowledge however this is often unrealistic in particular it cannot be true in experimental games where players are subjects drawn at random from a population therefore an incomplete information methodology is needed we take a first step in this direction focusing on guilt aversion in the trust game in our models agents have heterogeneous belief hierarchies we characterize equilibria where trust occurs with positive probability our analysis illustrates the incomplete information approach to psychological games and can help to organize experimental results in the trust game this paper was accepted by uri gneezy behavioral economics

public beliefs and corruption in a repeated psychological game abstract this paper investigates the role of guilt aversion for corruption in public administration corruption is modeled as the outcome of a game played between a bureaucrat a lobby and the public there is a moral cost of corruption for the bureaucrat who is averse to letting the public down we study how the behavior of the lobby and the bureaucrat depend on perceived public beliefs when these are constant and when they are allowed to vary over time with time varying beliefs corruption is more likely when the horizon of the game is relatively long and when public beliefs are initially low and are updated fast

labor supply and marital separation panel data are used to estimate the effect of marital separation on labor supply female labor supply increases substantially and male labor supply declines marginally lending support to the theory of specialization within the household the most interesting finding is that women began to increase their labor supply well before the actualsplit occurs suggesting either that shocks to labor supply change divorce probabilities or that women with a higher likelihood of divorcework more this argument is pursued by constructing and estimating a simultaneous model of labor supply and divorce risk copyright 1986 by american economic association

mortgage modification and strategic behavior evidence from a legal settlement with countrywide abstract we investigate whether homeowners respond strategically to news of mortgage modification programs we exploit plausibly exogenous variation in modification policy induced by settlement of us state government lawsuits against countrywide financial corporation which agreed to offer modifications to seriously delinquent borrowers using a difference in differences framework we find that countrywide s monthly delinquency rate increased more than 0 54 percentage points a 10 percent relative increase immediately after the settlement s announcement the estimated increase in default rates is largest among borrowers least likely to default otherwise these results suggest that strategic behavior should be an important consideration in designing mortgage modification programs jel d14 g21 k22 r31

securitization and mortgage renegotiation evidence from the great depression we use loan level data from the nyc metropolitan area to examine the extent to which lenders attempted to prevent foreclosures with concessionary modi cations during the great depression we nd no principal forgiveness in the sample and only a handful of concessionary mortgage modi cations of other types far more mortgages terminated through foreclosure than received any sort of concessionary modi cation the results indicate that there are signi cant impediments to renegotiation of residential mortgages beyond securitization as such less renegotiation seems unlikely to be a major cost of securitization of residential mortgages

do rural banks matter evidence from the indian social banking experiment lack of access to finance is often cited as a key reason why poor people remain poor this paper uses data on the indian rural branch expansion program to provide empirial evidence on this issue between 1977 and 1990 the indian central bank mandated that a commercial bank can open a branch in a location with one or more bank branches only if it opens four in locations with no bank branches we show that between 1977 and 1990 this rule caused banks to open relatively more rural branches in indian states with lower initial financial development the reverse is true outside this period we exploit this fact to identify the impact of opening a rural bank on poverty and output our estimates suggest that the indian rural branch expansion program significantly lowered rural poverty and increased non agricultural output

guilt in games a clear conscience is a good pillow why does this old proverb contain an insight the emotion of guilt holds a key psychologists report that the prototypical cause of guilt would be the infliction of harm loss or distress on a relationship partner roy baumeister arlene m stillwell and todd f heatherton 1994 245 june price tangney 1995 moreover guilt is unpleasant and may affect behavior to render the associated pangs counterfactual baumeister stillwell and heatherton state if people feel guilt for hurting their partners and for failing to live up to their expectations they will alter their behavior to avoid guilt in ways that seem likely to maintain and strengthen the relationship avoided guilt is the down of the sound sleeper s bolster how can guilt be modeled how are human interaction and economic outcomes influenced we offer a formal approach for providing answers start with an extensive game form which associates a monetary outcome with each end node say that player i lets player j down if as a result of i s choice of strategy j gets a lower monetary payoff than j expected to get before play started player i s guilt may depend on how much he lets j down player i s guilt may also depend on how much j believes i believes he lets j down we develop techniques to analyze equilibria when players are motivated in part by a desire to avoid guilt the intellectual home for our exercise is what has been called psychological game theory this framework originally developed by john geanakoplos david pearce and ennio stacchetti 1989 and recently extended by battigalli and dufwenberg 2005 henceforth b d allows players utilities to depend on beliefs about choices states of nature

forced asset sales and the concentration of outstanding debt evidence from the mortgage market we provide evidence that lenders differ in their ex post incentives to internalize price default externalities associated with the liquidation of collateralized debt using the mortgage market as a laboratory we conjecture that lenders with a large share of outstanding mortgages on their balance sheets internalize the negative spillovers associated with the liquidation of defaulting mortgages and thus are less inclined to foreclose we provide evidence consistent with our conjecture arguably as a consequence zip codes with a higher concentration of outstanding mortgages experience smaller house prices declines these results are not driven by unobservable zip code or lender characteristics

advertising in consumer goods industries durability economies of scale and heterogeneity hree prominent explanations can be offered for the large and persistent recorded profit rates of firms in heavily advertised consumer goods industries these explanations are based on durability scale economies and heterogeneity for advertising respectively the first explanation posits a prolonged durability for advertising as a consequence recorded profit rates are overstated because accounting convention expenses advertising rather than properly treating it as an investment in durable assets 2 when the durability of advertising is sufficiently prolonged normal returns on the unreported advertising assets fully account for apparent windfall profits a second explanation rests on the presumed collusion

what triggers mortgage default this paper assesses the relative importance of two key drivers of mortgage default negative equity and illiquidity to do so the authors combine loan level mortgage data with detailed credit bureau information about the borrower s broader balance sheet this gives them a direct way to measure illiquid borrowers those with high credit card utilization rates the authors find that both negative equity and illiquidity are significantly associated with mortgage default with comparably sized marginal effects moreover these two factors interact with each other the effect of illiquidity on default generally increases with high combined loan to value ratios cltv though it is significant even for low cltv county level unemployment shocks are also associated with higher default risk though less so than high utilization and strongly interact with cltv in addition having a second mortgage implies significantly higher default risk particularly for borrowers who have a first mortgage ltv approaching 100 percent this abstract was borrowed from another version of this item

the impact of legalized abortion on crime we offer evidence that legalized abortion has contributed significantly to recent crime reductions crime began to fall roughly eighteen years after abortion legalization the five states that allowed abortion in 1970 experienced declines earlier than the rest of the nation which legalized in 1973 with roe v wade states with high abortion rates in the 1970s and 1980s experienced greater crime reductions in the 1990s in high abortion states only arrests of those born after abortion legalization fall relative to low abortion states legalized abortion appears to account for as much as 50 percent of the recent drop in crime