modeling charitable giving using a box cox standard tobit model there is a large literature investigating the determinants of charitable giving in particular price and income elasticities we find that many of the most often reported results from this literature rely on a model specification that is inappropriate when applied to recent federal tax file data we develop a standard tobit model with a box cox transformation parameter that nests a number of other specifications the box cox model yields estimates of price elasticities and expected charitable contributions that differ from those obtained using the typical specification additionally we find that the use of sample weights provides potentially important policy insights copyright 1991 by mit press

women s schooling home teaching and economic growth the hypothesis that increases in the schooling of women enhance the human capital of the next generation and thus make a unique contribution to economic growth is assessed on the basis of data describing green revolution india estimates are obtained that indicate that a component of the significant and positive relationship between maternal literacy and child schooling in the indian setting reflects the productivity effect of home teaching and that the existence of this effect combined with the increase in returns to schooling for men importantly underlies the expansion of female literary following the onset of the green revolution

women s work and economic development using a cross country dataset and microdata from india and thailand we examine how women s work status changes with economic development several clear patterns emerge women s labor force participation first declines and then rises with development women move from work in family enterprises to work as paid employees fertility declines and gender gaps in education narrow women s education levels and those of their spouses appear to be important determinants of women s labor market activities broad welfare indicators such as mortality rates and education levels indicate that women s well being improves on average with development both in absolute terms and relative to men

capital accumulation games of infinite duration abstract consider a market in which firms accumulate capital according to the nerlove arrow capital accumulation equation each player chooses a path of investment and thus an induced path of capital to maximize his total discounted profits which depend on his own capital and the capital stocks of his rivals existence is proved for such a nonzero sum infinite horizon differential game and conditions under which the game converges to a particular stationary point regardless of the initial conditions are shown thus the game possesses the property of conditional global asymptotic stability

glass slippers and glass ceilings an analysis of marital anticipation and female education abstract this paper studies how marital anticipation affects female schooling in the presence of gender wage inequality and private benefits of education gender wage inequality induces a marital division of labour that creates i a marginal disincentive to girls schooling and ii a tradeoff between consumption and education facing females in marriage markets we show that in the presence of the last effect an increase in the market wage can have negative consequences for the education of females who specialise in housework

strategic investment under uncertainty a synthesis abstract investment is a central theme in economics finance and operational research traditionally the focus of analysis has been either on assessing the value of flexibility investment under uncertainty or on describing commitment effects in competitive settings industrial organization research contributions addressing the intersection of investment under uncertainty and industrial organization have become numerous in recent years in this paper we provide an overview aimed at categorizing and relating these research streams we highlight managerial insights concerning the nature of competitive advantage first versus second mover advantage the manner in which information is revealed firm heterogeneity capital increment size and the number of competing firms

an equilibrium selection theory of monopolization we develop a duopoly model in which firms compete for the market e g investing in process innovation or product development as well as in the market e g setting quantities or prices competition for the market generates multiple equilibria that differ in the firms investment levels relative size and profitability we show that monopolization that affects competition in the market can act as an equilibrium selection device in competition for the market in particular it eliminates equilibria that are undesirable for the monopolizing firm while not generating new equilibria this result complicates the task of determining whether a firm s dominance in a given market is the result of fair competition or unlawful monopolization we discuss a number of implications for antitrust policy and litigation and illustrate these by means of two well known antitrust cases

strategic investment and conjectural variations abstract this paper analyzes investment decisions under the alternative assumptions of competitive collusive open loop non cooperative and feedback non cooperative behavior steady state capital stocks prices and outputs are obtained and compared the paper shows that one of the linear feedback equilibrium decision rule coefficients is a dynamic version of a contemporaneous conjectural variation the same decision rule coefficients are shown to imply a particular value for the contemporaneous conjecture the implied conjecture embodies subgame perfection and approaches the competitive value as the number of firms in the industry increases

cultivating disaster donors using data analytics nonprofit organizations use direct mail marketing to cultivate one time donors and convert them into recurring contributors cultivated donors generate much more revenue than new donors but also lapse with time making it important to steadily draw in new cultivations the direct mail budget is limited but better designed mailings can improve success rates without increasing costs we propose an empirical model to analyze the effectiveness of several design approaches used in practice based on a massive data set covering 8 6 million direct mail communications with donors to the american red cross during 2009 2011 we find evidence that mailed appeals are more effective when they emphasize disaster preparedness and training efforts over post disaster cleanup including small cards that affirm donors identity as red cross supporters is an effective strategy whereas including gift items such as address labels is not finally very recent acquisitions are more likely to respond to appeals that ask them t

gender and say a model of household behaviour with endogenously determined balance of power the evidence that the same total income can lead a household to choose different consumption vectors depending on who brings in how much of the income has led to an effort to replace the standard unitary model of the household with the collective model which recognizes that the husband and the wife may have different preferences and depending on the balance of power between them the household may choose differently one weakness of this new literature is that it fails to recognize that the household s choice could in turn influence the balance of power once this two way relation between choice and power is recognized we are forced to confront some new questions concerning how to model the household this paper tries to answer these by defining a household equilibrium examining its game theoretic properties and drawing out its testable implications it is shown for instance that once we allow for dynamic interaction a household can exhibit inefficient behavior and that for a certain class of parameters children will be less likely to work in a household where power is evenly balanced than one in which all power is concentrated in the hands of either the father or the mother the paper also draws out the implications for female labor supply

charitable contributions and intergenerational transfers abstract this paper investigates the effects of bequest taxes and the income of children on the lifetime charitable contributions of parents using matched income tax records for parents and children the results show a positive elasticity of 0 6 for contributions with respect to the tax price of bequests the paper also finds that the income of children affects the amount that parents contribute to charity the results show a positive elasticity of up to 0 14 for contributions by parents with respect to the income of children implying that when children are better off parents are likely to increase charitable giving

education gender gaps in pakistan is the labor market to blame abstract differential labor market returns to male and female education are one potential explanation for large gender gaps in education in pakistan we empirically test this explanation by estimating private returns to education separately for male and female wage earners this article contributes to the literature by using a variety of methodologies ordinary least squares heckman correction two stage least squares and household fixed effects in order to estimate economic returns to education the latest nationally representative data the pakistan integrated household survey 2002 are used earnings function estimates consistently reveal a sizable gender asymmetry in economic returns to education with returns to women s education being substantially and statistically significantly higher than men s the return to an additional year of schooling ranges between 7 and 11 for men and between 13 and 18 for women there are also large direct returns to women s education at low levels of schooling

looking for boy girl discrimination in household expenditure data the ability to test for discrimination in the allocation of goods between boys and girls is hampered by a lack of data on intrahousehold distribution the analysis presented here allows inferences about intrahousehold allocation to be made from householdlevel expenditure data for a given level of income families with children will spend less on adult goods in order to purchase children s goods if household purchasing favors boys over girls smaller expenditures on adult goods would be made by families with boys as compared with those with girls a method for determining adult goods is described and the procedure for detecting gender bias is applied to data from c6te d lvoire and thailand the data show no evidence of discriminatio n between boys and girls in c6te d lvoire and a small and statistically insignificant bias in favor of boys in thailand how commodities are allocated among the members of a household has recently occasioned a good deal of interest assessments of poverty and income distribution based on household incomes or expenditures will be misleading if allocation within the household is unequal the position of women and girls has been of particular concern and there is a considerable amount of empirical evidence much of it from the indian subcontinent that documents discrimination against females see in particular bhagwati 1973 sen 1984 sen and sengupta 1983 miller 1981 bardhan 1982 and kynch and sen 1983 as well as survey papers by behrman 1987 and harriss 1987 much of the evidence is concerned with measurements of nutritional outcomes mortality and health status rather than with the direct allocation of goods by gender the difficulty in trying to determine the intrahousehold allocation of goods is that household budget surveys the obvious source of data record consumption not of individuals but of households and while attempts can be made to the author is a professor of public affairs and of economics and international affairs at princeton university and is a consultant to the population and human resources department of the world bank the author thanks dwayne benjamin who provided for excellent research assistance he is grateful to him and to members of the economic growth center at yale university for helpful comments this is a revised and shortened version of living standards measurement study working paper 39 the allocation of goods within the household adults children and gender june 1987 the results from thailand were not included in the working paper 1989 the international bank for reconstruction and development the world bank

sustaining cooperation in a differential game of advertising goodwill accumulation abstract the paper suggests a differential game of advertising competition among three symmetric firms played over an infinite horizon the objective of the research is to see if a cooperative agreement among the firms can be sustained over time for this purpose the paper determines the characteristic functions value functions of individual players and all possible coalitions we identify an imputation that belongs to the core using this imputation guarantees that in any subgame starting out on the cooperative state trajectory no coalition has an incentive to deviate from what was prescribed by the solution of the grand coalition s optimization problem

the dynamics of performance volatility and firm valuation we construct a model to illustrate the dynamics of cash flow volatility cfv and firm valuation as a firm progressively invests in its growth opportunities its book value increases and catches up with its market value reducing the valuation multiple q cfv decreases because of the diversification effect of investing in more market segments we document a positive cfv q association which varies with firm size investment opportunities and the correlation across market segments empirical findings strongly support the model s predictions and are robust to alternative explanations offered by extant studies on firm growth volatility and valuation

the impact of lead time on capital investments abstract we study equilibrium investment strategies of firms competing in stochastic dynamic market settings and facing two types of investment structures investment with significant lead time or time to build and investment without or minor lead time we investigate how investment behavior changes when investment is subject to time to build versus when it is not we characterize equilibrium investment strategies under several information structures and compare results to the social optimum we offer some new results the model predicts that controlling for demand and production and investment costs investments and outputs can be higher in progressive industries which often exhibit time to build than in fast paced industries where time to build is insignificant furthermore for both investment types investment with or without time to build we offer a novel equilibrium in which firms incrementally invest this behavior is driven by demand uncertainty and capacity constraints also expected outputs are lower than cournot outputs as firms face uncertainty moreover the amount of uncertainty has different effects over investment types

charitable donations by uk households evidence from the family expenditure survey this paper reports estimates based on both standard tobit and generalized tobit techniques of the determinants of charitable giving in the uk using 1984 family expenditure survey data this is the first such study using uk data separate estimates are presented of the determinants of participation and of the level of donations by giving households participation is seen to be sensitive to income the tax price of giving and a range of demographic variables while the level of donations varies primarily with income donations are found to be inelastic with respect to changes in disposable income

irreversible investment under uncertainty in oligopoly abstract an oligopoly is studied where firms facing a stochastic inverse demand curve use capacity as strategic variable capacity may be adjusted continuously over time with linear cost the analysis uses the technique of a fictitious social planner and the theory of irreversible investment under uncertainty examples indicate that qualitatively the price process will be similar in oligopoly and competitive equilibrium when firms are nonidentical e g in initial size and even if they are alike in other respects substantial time may pass until they are all the same size much of that time one firm may dominate the market

determinants of charitable donations in canada a comparison over time two issues are examined the statistical significance of a number of socio economic factors that affect the level of charitable giving are evaluated family wealth and age of the head of household tend to be significant determinants of charitable giving regardless of whether it is to all charities or to religious charities only such is not the case for the price of giving for instance the price of giving is an important determinant of all charitable contributions but almost non existent as a determinant for religious donations results such as this suggest that changes in marginal tax rates prompted by a switch to a tax credit as a substitute for a deduction and hence a change in the price of giving may have virtually no impact on contributions to religious organizations but may affect conntributions to other charitable organizations the extent to which some socio economic factors changed in relative importance as determinants of charitable giving from 1982 to 1986 is also reviewed

option exercise games an application to the equilibrium investment strategies of firms under the standard real options approach to investment under uncertainty agents formulate optimal exercise strategies in isolation and ignore competitive interactions however in many real world asset markets exercise strategies cannot be determined separately but must be formed as part of a strategic equilibrium this article provides a tractable approach for deriving equilibrium investment strategies in a continuous time cournot nash framework the impact of competition on exercise strategies is dramatic for example while standard real options models emphasize that a valuable option to wait leads firms to invest only at large positive net present values the impact of competition drastically erodes the value of the option to wait and leads to investment at very near the zero net present value threshold copyright 2002 oxford university press

investment in competitive equilibrium the optimality of myopic behavior there is an extensive literature on the optimal irreversible investment strategy of a solitary firm facing an exogenous price process this paper shows that the investment strategies that this literature derives may be optimal in competitive equilibrium even though the price process is now endogenous this provides a simple means for computing equilibrium investment strategies

investment in schooling and the marriage market we present a model in which investment in schooling generates two kinds of returns the labor market return resulting from higher wages and a marriagemarket return defined as the impact of schooling on the marital surplus share one can extract men and women may have different incentives to invest in schooling because of different market wages or household roles this asymmetry can yield a mixed equilibrium with some educated individuals marrying uneducated spouses when the labor market returns to schooling rises home production demands less time and the traditional spousal labor division norms weaken more women may invest in schooling than men

media coverage and charitable giving after the 2004 tsunami author affiliation philip h brown department of economics colby college 5246 mayflower hill waterville me 04901 usa e mail phbrown colby edu corresponding author jessica h minty analysis group inc 111 huntington avenue 10th floor boston ma 02199 usa e mail jminty analysisgroup com acknowledgment we are grateful to claudio agostini michael donihue martin farnham rebecca graninger daniel hamermesh melanie siben tom tietenberg andreas waldkirch seminar participants at colby college and two anonymous referees for numerous helpful comments and suggestions we would also like to acknowledge reuters alertnet and chuck lakin for their assistance in identifying data sources and care usa catholic relief services mercy corps surfaid international and four other relief agencies for providing data for the purpose of this research finally philip h brown would like to thank the international food policy research institute for sabbatical support during the preparation of this manuscript 1 introductionrelief workers have long believed in the causal relationship between media coverage of humanitarian crises and charitable giving to relief agencies for example private donations to relief agencies during the early stages of the 1994 rwandan genocide were sufficient to support approximately one million displaced rwandans but after the tribulations of o j simpson and tanya harding eclipsed rwanda in the media funding for relief activities began to decline the perception among many aid workers in the camps for rwandan refugees including one of the authors was that the media had turned its back on the crisis with potentially dire consequences 1while anecdotal evidence abounds few studies have systematically assessed the relationship between media coverage and the behavior of private donors and those that do suffer from important analytical shortcomings for example an analysis undertaken by the institute for philanthropy finds that 14 of 15 surveyed british philanthropists believe that the media has the power to encourage private giving with 11 of the 15 being inspired to make charitable donations themselves breeze 2005 similarly olsen carstenson and hoyen 2003 find a high correlation between the total number of relevant articles in western newspapers and the total amount of humanitarian assistance allocated to victims of the flooding in mozambique in 2000 and the cyclone in eastern india in 1999 unfortunately neither sample is large enough to make generalizations nor is there any attempt to quantify the magnitude of the causal relationship in part the difficulty in quantifying the relationship stems from disentangling the effect of new developments in stories covered in the media from the pure effect of media coverage returning to the rwanda case the former is tantamount to asking what is the combined effect of 10 000 additional deaths and a five minute news story on donations to u s charities while the latter is equivalent to asking given that 10 000 people were killed what is the effect of increasing the news story from five minutes to six in this paper we use the december 26 2004 tsunami as a case study to quantify the causal effect of media coverage on donations to charity specifically we consider the effects of reporting on three nightly network news broadcasts and articles in two prominent newspapers on private donations to seven u s relief agencies to eliminate the time lag between when news reports are seen or read and when donations are received by relief agencies we focus exclusively on donations made via the internet we also control for donor fatigue tax incentives and weekends to better isolate the effect of media coverage finally to alleviate simultaneity concerns and omitted variable bias including new developments in the tsunami story itself we use announcements of casualties among u

equilibrium and options on real assets in aggregate options on real and financial assets can have very different properties typically the good or service produced by a real asset has a finite elasticity of demand and developers have finite capacities also the supply of options can be limited and developers can be less than perfectly competitive in a subgame perfect nash equilibrium with these properties the optimal exercise policy and resulting values of developed and undeveloped assets are calculated explicitly the novel comparative statics are discussed in detail article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies

n firm oligopolies with production adjustment costs best responses and equilibrium abstract n firm single product oligopolies will be examined without product differentiation and with production adjustment costs the best response functions of the firms will be first determined in terms of the outputs of the rest of the industry and the firm s own outputs of the previous time period this function is always decreasing not necessarily continuous and might have two different values then the best response will be determined when the output of the rest of the industry is replaced by the output of the entire industry we will show that this function might have infinitely many values leading to infinitely many equilibria a complete description of the equilibrium set will also be given the theoretical findings will be illustrated with the case of linear price and linear cost functions

does the labour market explain lower female schooling in india labour market discrimination against women and parental discrimination against daughters are two of the most commonly cited explanations of the gender gap in education in developing countries this study empirically tests the labour market explanation for india using recent household survey data the results reveal substantial omitted family background bias in the estimates of rates of return to education the findings suggest that as well as overall labour market discrimination girls face poorer economic incentives to invest in schooling than boys because they reap lower labour market returns to education than boys

open loop equilibria and perfect competition in option exercise games the investment boundaries defined by grenadier 2002 for an oligopoly investment game determine equilibria in open loop strategies as closed loop strategies they are not equilibria because any firm by investing sooner can preempt the investments of other firms and expropriate the growth options the perfectly competitive outcome is produced by closed loop strategies that are mutually best responses in this equilibrium the option to delay investment has zero value and the simple npv rule is followed by all firms the author 2009 published by oxford university press on behalf of the society for financial studies all rights reserved for permissions please e mail journals permissions oxfordjournals org oxford university press

collusion and dynamic under investment in quality in a dynamic game of investment in product quality i investigate whether collusive underinvestment equilibria can be supported by the threat of escalation in investment outlays when there are no spillovers underinvestment equilibria exist even though by deviating a firm can gain a persistent strategic advantage when there are strong spillovers underinvestment equilibria fail to exist a weakening of patent protection can thus lead to more investment in equilibrium a nonfragmentation result is shown to hold in all free entry equilibria industry concentration is bounded away from zero no matter how large the market and despite the existence of underinvestment equilibria

capacity investment preemption and commitment in an infinite horizon model the commitment value of capacity is analyzed in an infinite horizon duopoly model the paper focuses on the role of alternative behavioral assumptions about the ability of firms to commit to investment paths each firm s investment strategy in a feedback nash equilibrium is shown to be a decreasing function of its rival s current capacity this creates an incentive for a firm to expand its capacity to preempt subsequent rival investment in a precommitment equilibrium there are no incentives to invest preemptively as a consequence steady state capacity levels are greater in a feedback nash equilibrium than in a precommitment equilibrium copyright 1987 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the investment behaviour of firms in an oligopolistic setting industrial organization theory has identified strategic investment in capacity as an important element in competition in oligopolistic markets in the paper we specify a model of oligopolistic investment behaviour and test it with panel data for 114 firms in 15 narrowly defined uk manufacturing industries in the 1970s and 1980s the industries are distinguished according to their market characteristics as fragmented dominant firm and dominant group sectors the results indicate behaviour which is noncooperative in fragmented sectors cooperative in dominant group sectors and competitive in dominant firm sectors

charitable motives and bidding in charity auctions research on bidding in auctions has generally relied on the assumption of self interested bidders this work relaxes that assumption in the context of charity auctions because understanding charitable motives has important implications for auction design and charities fundraising strategies this study investigates bidders specific types of charitable motives and the strength of these motives we carry out three controlled field experiments consisting of real life auctions conducted on a local internet auction site we use a novel design in which we simultaneously run charity and noncharity auctions for identical products and vary the percentage donated to charity results show that auctions with proceeds donated to charity lead to significantly higher selling prices a result due to a higher bidding by bidders with charitable motives rather than to increased bidder entry we also find that increased prices only occur when the charitable donation is a percentage of the auction revenue and that a fixed charitable donation associated with each auction has no effect on prices furthermore we find that prices are increasing in the percentage donated to charity we find considerable support for a model of voluntary shill like bidding where charitable bidders try to increase proceeds in charity auctions we also find that auctions with 25 of revenue donated to charity had higher net revenue than noncharity auctions hence companies may be able to use charity auctions as part of a corporate social responsibility strategy and at the same time increase profitability even though they donate part of the proceeds to charity

preemption games under levy uncertainty abstract we study a stochastic version of fudenberg tirole s preemption game two firms contemplate entering a new market with stochastic demand firms differ in sunk costs of entry if the demand process has no upward jumps the low cost firm enters first and the high cost firm follows if leader s optimization problem has an interior solution the leader enters at the optimal threshold of a monopolist otherwise the leader enters earlier than the monopolist if the demand admits positive jumps then the optimal entry threshold of the leader can be lower than the monopolist s threshold even if the solution is interior simultaneous entry can happen either as an equilibrium or a coordination failure the high cost firm can become the leader we characterize subgame perfect equilibrium strategies in terms of stopping times and value functions analytical expressions for the value functions and thresholds that define stopping times are derived

dynamic oligopoly with capacity adjustment costs abstract the literature on strategic investment emphasized the case of completely irreversible investment this paper considers an oligopoly model in which investment is reversible and capacity is subject to adjustment costs an n player linear quadratic differential game is analyzed existence and characterization results for perfect equilibrium feedback strategies are provided feedback strategies provide incentives for each player to invest strategically so as to preempt subsequent expansion by rivals a larger set of perfect equilibria is constructed by using memory dependent trigger strategies equilibria of this type are shown to support joint value maximization for some initial states and asymmetric steady states

market opportunities genetic endowments and intrafamily resource distribution child survival in rural india the authors examine how intrafamily resource allocations respond to changes in economic conditions and to genetic differences in children by estimating the determinants of variations in the sex specific survival differentials of rural indian children based on standard census and household survey data they explore in particular the hypothesis that such differences are related to the relative returns to survival with households selectively allocating resources to children in response to variation in sex differences in their expected earnings opportunities as adults data are from the 1961 census and a 1971 household survey excerpt

oligopoly extraction of a common property natural resource the importance of the period of commitment in dynamic games the theory of noncooperative dynamic games has provided an extremely powerful framework for studying many of the classic questions in industrial organization for example questions about resource extraction advertising research and development investment in new capacity and barriers to entry where interactions over time among few firms are involved however an important methodological issue arises when economic competition over time is modeled as a dynamic game the issue is the appropriate formulation of the players strategy spaces