Breastfeeding is negatively correlated with future fertility because nursing temporarily reduces fecundity and because mothers usually wean on becoming pregnant again. We model breastfeeding under son-biased fertility preferences and show that breastfeeding duration increases with birth order, especially near target family size; is lowest for daughters and children without older brothers because their parents try again for a son; and exhibits the largest gender gap near target family size, when gender is most predictive of subsequent fertility. Data from India confirm each prediction. Moreover, child survival exhibits similar patterns, especially in settings where the alternatives to breastmilk are unsanitary.

In view of the non-identification of the first-price auction model with risk-averse bidders, this paper proposes some parametric identifying restrictions and a semiparametric estimator for the risk aversion parameter(s) and the latent distribution of private values. Specifically, we exploit heterogeneity across auctioned objects to establish semiparametric identification under a conditional quantile restriction of the bidders' private value distribution and a parameterization of the bidders' utility function. We develop a multistep semiparametric method and we show that our semiparametric estimator of the utility function parameter(s) converges at the optimal rate, which is slower than the parametric one but independent of the dimension of the exogenous variables thereby avoiding the curse of dimensionality. We then consider various extensions including a binding reserve price, affiliation among private values, and asymmetric bidders. The method is illustrated on U.S. Forest Service timber sales, and bidders' risk neutrality is rejected.

Why in many economies households and firms borrow and make deposits in foreign currency? Expanding on the existing literature, our framework addresses this question allowing for interest rate differentials and access to foreign funds to play a role in explaining this process of asset substitution or financial dollarization. Using a newly compiled data set on transition economies and employing a standard panel as well as a panel-VAR methodology we find that increasing access to foreign funds leads to higher credit dollarization, while it decreases deposit dollarization. Interest rate differentials matter for the dollarization of both loans and deposits.

Motivated by evidence from the empirical accounting and finance literatures suggesting that short sellers target firms with suspect financial reporting, we investigate whether short interest provides a signal of the degree of audit risk. We find a positive association between audit fees and short interest (total shares sold short scaled by total shares outstanding) after controlling for other determinants of audit fees. This finding suggests that short interest is an indicator of audit risk that reflects information not captured by traditional client risk measures. We also find an increase in the magnitude of the association between audit fees and short interest after events in the early 2000s (corporate scandals, the collapse of Arthur Andersen, and the implementation of new auditing standards) which increased auditors’ responsibilities to deter fraud and made the implications of fraud particularly salient to external auditors. Our findings are important because they suggest that auditors’ sensitivity to client risk information increased post-2002, indicating that efforts by regulators and standard setters (e.g., the PCAOB and the AICPA) to increase auditors’ attention to risk have been successful.

We study a model in which future financing constraints lead firms to have a preference for investments with shorter payback periods, investments with less risk, and investments that utilize more pledgeable assets. The model also shows how investment distortions towards more liquid, safer assets vary with the marginal cost of external financing and with firm internal cash flows. Our theory helps reconcile and interpret a number of patterns reported in the empirical literature, in areas such as risk-taking behavior, capital structure choices, hedging strategies, and cash management policies. For example, contrary to Jensen and Meckling [Jensen, M., Meckling, W., 1976. Theory of the Firm: managerial behavior, agency costs, and ownership structure. Journal of Financial Economics 305–360], we show that firms may reduce rather than increase risk when leverage increases exogenously. Furthermore, firms in economies with less developed financial markets will not only take different quantities of investment, but will also take different kinds of investment (safer, short-term projects that are potentially less profitable). We also point out to several predictions that have not been empirically examined. For example, our model predicts that investment safety and liquidity are complementary: constrained firms are specially likely to decrease the risk of their most liquid investments.

We study simultaneous security-bid second-price auctions with competition among sellers for potential bidders. The sellers compete by designing ordered sets of securities that the bidders can offer as payment for the assets. Upon observing auction designs, potential bidders decide which auctions to enter. We characterize all symmetric equilibria and show that there always exist equilibria in which auctions are in standard securities or their combinations. In large markets the unique equilibrium is auctions in pure cash. We extend the model for competition in reserve prices and show that binding reserve prices never constitute equilibrium as long as equilibrium security designs are not call options.

Nous nous intéressons à l'estimation non paramétrique d'une fonction de régression instrumentale ϕ .Cette fonction est définie à l'aide de conditions de moment provenant d'un modèle économétrique structurel de la forme ( )des variables endogènes et les W des instruments.La fonction ϕ est alors la solution d'un problème inverse mal posé, et nous proposons une procédure d'estimation utilisant la régularisation de Tikhonov.Le papier analyse l'identification et la suridentification du modèle et donne les propriétés asymptotiques de l'estimateur de la régression instrumentale non paramétrique.

We develop a model that analyzes competition between a non-intermediated market (such as an electronic communications network) and an intermediated market (such as via the market specialist’s structure within the NYSE) when both markets are allowed to trade the same securities. Specialists are viewed as providers of a “volatility dampening” service, a mechanism for reducing round-trip trading costs, as well as an “order execution risk management” service. The economic value of these three specialist services is determined by five key factors (the difference in spreads between the two financial market types, investors’ holding periods, the specialist’s quoted spread in relation to the asset’s price, the relative probability of executing an order in the intermediated market, and the short-term risk-free rate).

This article assesses the role of conditionality in cash transfer programs using a unique experiment targeted at adolescent girls in Malawi. The program featured two distinct interventions: unconditional transfers (UCT arm) and transfers conditional on school attendance (CCT arm). Although there was a modest decline in the dropout rate in the UCT arm in comparison with the control group, it was only 43% as large as the impact in the CCT arm at the end of the 2-year program. The CCT arm also outperformed the UCT arm in tests of English reading comprehension. However, teenage pregnancy and marriage rates were substantially lower in the UCT than the CCT arm, entirely due to the impact of UCTs on these outcomes among girls who dropped out of school.

A nation's economic geography can have an enormous impact on its development. In Thailand, we show that a high concentration of enterprise in an area predicts high subsequent growth in and around that area. We also find spatially contiguous convergence of enterprise with stagnant areas left behind. Exogenous physiographic conditions are correlated with enterprise location and growth. We fit a structural, micro-founded model of occupation transitions with fine-tuned geographic capabilities to village data and replicate these salient facts. Key elements of the model include costs, credit constraints on occupation choice, and spatially varying expansion of financial service providers.