anticipating regret why fewer options may be better we study preferences over menus which can be represented as if the agent selects an alternative from a menu and experiences regret if her choice is ex post inferior since regret arises from comparisons between the alternative selected and the other available alternatives our axioms reflect the agent s desire to limit her options we prove that our representation is essentially unique we also introduce two measures of comparative regret attitudes and relate them to our representation finally we explore the formal connection between the present work and the literature on temptation

competition under consumer loss aversion we address the effect of expectation based consumer loss aversion on firm strategy in imperfect competition consumers are fully informed about match value and price at the moment of purchase however some consumers are initially uninformed about their tastes and form a reference point consisting of an expected match value and price distribution whereas others are perfectly informed all the time we show that if firms have symmetric costs a larger share of informed consumers leads to a more competitive outcome the reverse holds if cost asymmetry in duopoly is sufficiently large

estimating treatment effects from spatial policy experiments an application to ugandan microfinance abstract this paper demonstrates a method for estimating treatment effects in spatial tests utilizing a second control group to measure unexplained spatial phenomena the technique is implemented on two innovations in ugandan microfinance and we measure the ways in which concurrent shocks such as an ebola outbreak and a contentious presidential election altered outcomes differentially across regions by correcting for this spatial heterogeneity we measure the impact of the policies a program that increased borrowers control over the terms of their loans improved outcomes while the results of a program that bundled health insurance into the lending contract were more mixed

reference dependent preferences and labor supply the case of new york city taxi drivers i develop a model of daily labor supply where preferences are dependent on a reference daily income level and i apply this model to data on the labor supply of new york city taxi drivers i find that there may be a reference level of income on a given day that affects labor supply however there is substantial day to day variation in a given driver s reference level and most shifts end before reaching the reference income level this pattern is inconsistent with an important role for reference dependent preferences

measuring the default risk of small business loans a survival analysis approach in this paper we report that although medium maturity loans originated under the sba 7 a loan guarantee program are targeted to small firms that fail to obtain credit through conventional channels the default experience is comparable to that of a large percentage of loans held by larger commercial banks we establish that the default behavior of these loans is time sensitive as a loan seasons the likelihood of default increases initially peaks in the second year and declines thereafter using a discrete time hazard framework we show that the likelihood of default is conditional on borrower lender and loan characteristics and changes in economic conditions

price competition under limited comparability this paper studies market competition when firms can influence consumers ability to compare market alternatives through their choice of price formats we introduce random graphs as a tool for modelling limited comparability of formats our main results concern the interaction between firms equilibrium price and format decisions and its implications for industry profits and consumer switching rates we show that narrow regulatory interventions that aim to facilitate comparisons may have adverse consequences for consumer welfare finally we argue that our limited comparability approach provides a new perspective into the phenomenon of product differentiation

loan contract structure and adverse selection survey evidence from uganda abstract while adverse selection is an important theoretical explanation for credit rationing it is difficult to quantify empirically many studies measure the elasticity of credit demand of existing or previous borrowers as opposed to the population at large other studies use cross sectional approaches that may confound borrower risk with other factors we circumvent both issues by surveying a representative sample of microenterprises in urban uganda and by measuring their responses to multiple hypothetical contract offers varying in interest rates and collateral requirements the two seminal theories on selection provide contradicting predictions following a change in the contractual terms under adverse selection a lower interest rate or a lower collateral obligation should increase take up among less risky borrowers by contrast advantageous selection implies that take up should increase among the riskier borrowers we test these two predictions by examining if firm owners respond to changes in the interest rate or the collateral requirement and whether higher take up varies by firms risk type we find support for the presence of adverse selection as contracts with lower interest rates or lower collateral obligations increase hypothetical demand especially for less risky firms our results imply that changes to the standard loan product available to microenterprises may have substantial effects on credit demand

bric by bric the role of the family household in sustaining a venture in impoverished indian slums we advance understanding of the embedded role of the family household in governing firm performance in an impoverished setting drawing on bricolage theory which articulates how individuals make do with resources at hand we suggest that family household diversity facilitates creativity while family household shared business experience facilitates routinization while initially performance enhancing unfettered creativity and overroutinization have detrimental effects and thus expect the highest levels of performance to occur at moderate levels of family household diversity and shared business experience we find general support for our hypotheses using a large sample of firms and families in impoverished indian households

does the classic microfinance model discourage entrepreneurship among the poor experimental evidence from india do the repayment requirements of the classic microfinance contract inhibit investment in high return but illiquid business opportunities among the poor using a field experiment we compare the classic contract which requires that repayment begin immediately after loan disbursement to a contract that includes a two month grace period the provision of a grace period increased short run business investment and long run profits but also default rates the results thus indicate that debt contracts that require early repayment discourage illiquid risky investment and thereby limit the potential impact of microfinance on microenterprise growth and household poverty jel a21 g32 i32 l25 l26 o15 o16

observing unobservables identifying information asymmetries with a consumer credit field experiment information asymmetries are important in theory but difficult to identify in practice we estimate the presence and importance of hidden information and hidden action problems in a consumer credit market using a new field experiment methodology we randomized 58 000 direct mail offers to former clients of a major south african lender along three dimensions i an initial offer interest rate featured on a direct mail solicitation ii a contract interest rate that was revealed only after a borrower agreed to the initial offer rate and ii a dynamic repayment incentive that was also a surprise and extended preferential pricing on future loans to borrowers who remained in good standing these three randomizations combined with complete knowledge of the lender s information set permit identification of specific types of private information problems our setup distinguishes hidden information effects from selection on the offer rate via unobservable risk and anticipated effort from hidden action effects via moral hazard in effort induced by actual contract terms we find strong evidence of moral hazard and weaker evidence of hidden information problems a rough estimate suggests that perhaps 13 to 21 of default is due to moral hazard asymmetric information thus may help explain the prevalence of credit constraints even in a market that specializes in financing high risk borrowers

the new deal and modern memory summary economists and other social scientists may never be able to explain fully why the greatdepression happened when it did or why it initially was so severe numerous hypotheses havebeen advanced as we have seen and each of them contributes important insights into thecauses of the macroeconomic calamity in which most of the world was mired in 1929 1933 if however one is forced to adopt a monocausal theory it must center on the actions of america scentral bank which presided over an extraordinary expansion in bank credit in the mid to late1920s and then took the punch bowl off the table for the purposes of this article though the key question is why did the great depressionlast longer in the united states than it did in any other nation the answer as laid out in thenext section is presidential politics 23 there will come seven years of great plenty throughout all the land of egypt but after them will arise seven years offamine and all the plenty will be forgotten in the land of egypt the famine will consume the land genesis 41 29 30 nkjv

shrouded attributes consumer myopia and information suppression in competitive markets bayesian consumers infer that hidden add on prices e g the cost of ink for a printer are likely to be high prices if consumers are bayesian firms will not shroud information in equilibrium however shrouding may occur in an economy with some myopic or unaware consumers such shrouding creates an inefficiency which firms may have an incentive to eliminate by educating their competitors customers however if add ons have close substitutes a curse of debiasing arises and firms will not be able to profitably debias consumers by unshrouding add ons in equilibrium two kinds of exploitation coexist optimizing firms exploit myopic consumers through marketing schemes that shroud high priced add ons in turn sophisticated consumers exploit these marketing schemes it is not possible to profitably drive away the business of sophisticates it is also not possible to profitably lure either myopes or sophisticates to nonexploitative firms we show that informational shrouding flourishes even in highly competitive markets even in markets with costless advertising and even when the shrouding generates allocational inefficiencies

testing for regret and disappointment in choice under uncertainty much of the experimental evidence concerning violations of von neumann morgenstern expected utility theory has been collected fr om experiments designed with conventional theory in mind and does not provide direct tests of alternative models such as regret theory and disappointment theory this paper reports and discusses recent evidence produced by an exp erimentspe cifically designed to test for the impacts of regret and disappointment and to indicate their relative importance copyright 1987 by royal economic society

the challenge of rural financial inclusion evidence from microfinance financial inclusion is said to foster development and growth however progress in financial inclusion has been slow in rural areas where poverty is most pronounced this is often attributed to hig

sell low and buy high arbitrage and local price effects in kenyan markets large and regular seasonal price fluctuations in local grain markets appear to offer african farmers substantial intertemporal arbitrage opportunities but these opportunities remain largely unexploited small scale farmers are commonly observed to sell low and buy high rather than the reverse in a field experiment in kenya we show that credit market imperfections limit farmers abilities to move grain intertemporally providing timely access to credit allows farmers to buy at lower prices and sell at higher prices increasing farm revenues and generating a return on investment of 29 to understand general equilibrium ge effects of these changes in behavior we vary the density of loan offers across locations we document significant effects of the credit intervention on seasonal price fluctuations in local grain markets and show that these ge effects shape individual level profitability estimates in contrast to existing experimental work the results indicate a setting in which microcredit can improve firm profitability and suggest that ge effects can substantially shape microcredit s effectiveness in particular failure to consider these ge effects could lead to underestimates of the social welfare benefits of microcredit interventions

did leaving the gold standard tame the business cycle evidence from nber reference dates and real gnp most probable break point ushering in an era of longer u s expansions both absolutely and relative to subsequent recessions their analysis is based on cycle durations as defined by national bureau of economic research nber reference dates however much of macroeconomic analysis is based on i growth cycles i e periods when the economy s production is above or below trend rather than absolute increases or decreases in economic activity and ii aggregate time series volatility as the prime indicator of macroeconomic stability in light of this we reevaluate the march 1933 break point first using hp filtered quarterly gross national product gnp our analysis of growth cycle durations still implies a break point near 1933 second we test for structural breaks in the volatility of gnp growth rates and deviations from trends these tests suggest a structural break considerably later than

consistency and heterogeneity of individual behavior under uncertainty by using graphical representations of simple portfolio choice problems we generate a very rich dataset to study behavior under uncertainty at the level of the individual subject we test the data for consistency with the maximization hypothesis and we estimate preferences using a two parameter utility function based on faruk gul 1991 this specification provides a good interpretation of the data at the individual level and can account for the highly heterogeneous behaviors observed in the laboratory the parameter estimates jointly describe attitudes toward risk and allow us to characterize the distribution of risk preferences in the population

group versus individual liability short and long term evidence from philippine microcredit lending groups abstract group liability in microcredit purports to improve repayment rates through peer screening monitoring and enforcement however it may create excessive pressure and discourage reliable clients from borrowing two randomized trials tested the overall effect as well as specific mechanisms the first removed group liability from pre existing groups and the second randomly assigned villages to either group or individual liability loans in both groups still held weekly meetings we find no increase in short run or long run default and larger groups after three years in pre existing areas and no change in default but fewer groups created after two years in the expansion areas

choice proliferation simplicity seeking and asset allocation abstract in settings such as investing for retirement or choosing a drug plan individuals typically face a large number of options in this paper we analyze how the size of the choice set influences which alternative is selected we present both laboratory experiments and field data that suggest larger choice sets induce a stronger preference for simple easy to understand options the first experiment demonstrates that in seeming violation of the weak axiom of revealed preference subjects are more likely to select a given sure bet over non degenerate gambles when choosing from a set of 11 options than when choosing from a subset of 3 the second experiment clarifies that large choice sets induce a preference for simpler rather than less risky options lastly using records of more than 500 000 employees from 638 institutions we demonstrate that the presence of more funds in an individual s 401 k plan is associated with a greater allocation to money market and bond funds at the expense of equity funds

have postwar economic fluctuations been stabilized previous investigations of whether the volatility of the u s economy diminished after world war ii have been inconclusive because of questionable prewar macroeconomic aggregates we examine more broadly the hypothesis of the stabilization of the postwar economy by focusing on the duration of business cycles rather than their amplitude in the process we avoid the debate about the quality of prewar aggregates using distribution free statistics we find clear evidence of postwar duration stabilization in terms of a shift toward longer expansions and shorter contractions moreover we find no shift in whole cycle durations which suggests a reallocation of the business cycle away from contraction and toward expansion

expectations as endowments evidence on reference dependent preferences from exchange and valuation experiments while evidence suggests that people evaluate outcomes with respect to reference points little is known about what determines them we conduct two experiments that show that reference points are determined at least in part by expectations in an exchange experiment we endow subjects with an item and randomize the probability they will be allowed to trade subjects that are less likely to be able to trade are more likely to choose to keep their item in a valuation experiment we randomly assign subjects a high or low probability of obtaining an item and elicit their willingness to accept for it the high probability treatment increases valuation of the item by 20 30 copyright 2011 oxford university press

covid 19 and the future of microfinance evidence and insights from pakistan the covid 19 pandemic threatens lives and livelihoods and with that has created immediate challenges for institutions that serve affected communities we focus on implications for local microfinance institutions in pakistan a country with a mature microfinance sector serving a large number of households the institutions serve populations poorly served by traditional commercial banks helping customers invest in microenterprises save and maintain liquidity we report results from rapid response phone surveys of about 1 000 microenterprise owners a survey of about 200 microfinance loan officers and interviews with regulators and senior representatives of microfinance institutions we ran these surveys starting about a week after the country went into lockdown to prevent the spread of the novel coronavirus we find that on average week on week sales and household income both fell by about 90 households primary immediate concern in early april became how to secure food as a result 70 of the sample of current microfinance borrowers reported that they could not repay their loans loan officers anticipated a repayment rate of just 34 in april 2020 we build from the results to argue that covid 19 represents a crisis for microfinance in low income communities it is also a chance to consider the future of microfinance and we suggest insights for policy reform

incentive design under loss aversion compensation schemes often reward success b ut do not penalize failure fixed salaries with stock options or bonuses have this feature yet the standard principal agent model implies that pay is normally monotonically increasing in performance this paper shows that under loss aversion there will be intervals over which pay is insensitive to performance with the use of carrots but not sticks is frequently optimal especially when risk aversion is low and reference income is e ndogenous a further benefit of capping losses for example through options is to discourage reckless behavior by executives seeking to resurrect their fortunes jel f3 f4

new york city cab drivers labor supply revisited reference dependent preferences with rational expectations targets for hours and income this paper reconsiders whether cabdrivers labor supply decisions reflect reference dependent preferences following botond koszegi and matthew rabin 2006 we construct a model with targets for hours as well as income both determined by rational expectations estimating using henry s farber s 2005 2008 data we show that the reference dependent model can reconcile his 2005 finding that drivers stopping probabilities are significantly related to hours but not income with the negative wage elasticity of hours found by colin camerer et al 1997 and farber 2005 2008 the model yields sensible estimates that avoid farber s 2008 criticism that drivers income targets are too unstable to allow a useful reference dependent model of labor supply

price competition with satisficing consumers abstract the satisficing heuristic by simon 1955 has recently attracted attention both theoretically and experimentally in this paper i study a price competition model in which the consumer is satisficing and firms can influence his aspiration price via marketing unlike existing models whether a price comparison is made depends on both pricing and marketing strategies i fully characterize the unique symmetric equilibrium by investigating the implications of satisficing on various aspects of market competition the proposed model can help explain well documented economic phenomena such as the positive correlation between marketing and prices observed in some markets

site selection bias in program evaluation site selection bias can occur when the probability that a program is adopted or evaluated is correlated with its impacts i test for site selection bias in the context of the opower energy conservation programs using 111 randomized control trials involving 8 6 million households across the united states predictions based on rich microdata from the first 10 replications substantially overstate efficacy in the next 101 sites several mechanisms caused this positive selection for example utilities in more environmentalist areas are more likely to adopt the program and their customers are more responsive to the treatment also because utilities initially target treatment at higher usage consumer subpopulations efficacy drops as the program is later expanded the results illustrate how program evaluations can still give systematically biased out of sample predictions even after many replications jel codes c93 d12 l94 o12 q41

is tomorrow another day the labor supply of new york city cabdrivers the labor supply of taxi drivers is consistent with the existence of intertemporal substitution my analysis of the stopping behavior of new york city cabdrivers shows that daily income effects are small and that the decision to stop work at a particular point on a given day is primarily related to cumulative daily hours to that point this is in contrast to the analysis of camerer et al who find that the daily wage elasticity of labor supply of new york city cabdrivers is substantially negative implying large daily income effects this difference in findings is due to important differences in empirical methods and to problems with the conception and measurement of the daily wage rate used by camerer et al

a memory based model of bounded rationality in order to investigate the impact of limited memory on human behavior i develop a model of memory grounded in psychological and biological research i assume that people take their memories as accurate and use them to make inferences the resulting model predicts both over and underreaction but provides enough structure to predict when each effect dominates i then use this framework to study the consumption decision the results match empirical work on consumption predictability as well as differences in the marginal propensity to consume from different income streams most importantly because it ties the extent of bias to a measurable aspect of the stochastic process being forecasted the model makes testable empirical predictions

when more alternatives lead to less choice this paper shows that when the alternatives offered to consumers span the preference space as it would be chosen by a firm search or evaluation costs may lead consumers not to search and not to choose if too many or too few alternatives are offered if too many alternatives are offered then the consumer may have to engage in many searches or evaluations to find a satisfactory fit this may be too costly and result in the consumer avoiding making a choice altogether if too few alternatives are offered then the consumer may not search or choose fearing that an acceptable choice is unlikely these two forces result in the existence of a finite optimal number of alternatives that maximizes the probability of choice

the computational experiment an econometric tool an economic experiment consists of the act of placing people in an environment desired by the experimenter who then records the time paths of their economic behavior performing experiments that use actual people at the level of national economies is obviously not practical but constructing a model economy and computing the economic behavior of the model s people is such experiments are termed computational this essay specifies the steps in designing a computational experiment to address some well posed quantitative question the authors emphasize that the computational experiment is an econometric tool used in the task of deriving the quantitative implications of theory

reference dependent risk attitudes we use koszegi and rabin s 2006 model of reference dependent utility and an extension of it that applies to decisions with delayed consequences to study preferences over monetary risk because our theory equates the reference point with recent probabilistic beliefs about outcomes it predicts specific ways in which the environment influences attitudes toward modest scale risk it replicates classical prospect theory including the prediction of distaste for insuring losses when exposure to risk is a surprise but implies first order risk aversion when a risk and the possibility of insuring it are anticipated a prior expectation to take on risk decreases aversion to both the anticipated and additional risk for large scale risk the model allows for standard consumption utility to dominate reference dependent gain loss utility generating nearly identical risk aversion across situations

multi dimensional reference dependent preferences in sealed bid auctions how most laboratory experiments differ from the field abstract we study bidding behavior in first and second price sealed bid auctions with loss averse agents our model predicts overbidding in first price induced value auctions consistent with evidence from most laboratory experiments substantially different bidding behavior could result in commodity auctions where money and auction item are consumed along different dimensions of the consumption space differences also result in second price auctions our study thereby indicates that transferring qualitative behavioral findings from induced value laboratory experiments to the field may be problematic if subjects are loss averse

is tiger woods loss averse persistent bias in the face of experience competition and high stakes although experimental studies have documented systematic decision errors many leading scholars believe that experience competition and large stakes will reliably extinguish biases we test for the presence of a fundamental bias loss aversion in a high stakes context professional golfers performance on the pga tour golf provides a natural setting to test for loss aversion because golfers are rewarded for the total number of strokes they take during a tournament yet each individual hole has a salient reference point par we analyze over 2 5 million putts using precise laser measurements and find evidence that even the best golfers including tiger woods show evidence of loss aversion jel d03 d81 l83

competition and price variation when consumers are loss averse we modify the salop 1979 model of price competition with differentiated products by assuming that consumers are loss averse relative to a reference point given by their recent expectations about the purchase consumers sensitivity to losses in money increases the price responsiveness of demand and hence the intensity of competition at higher relative to lower market prices reducing or eliminating price variation both within and between products when firms face common stochastic costs in any symmetric equilibrium the markup is strictly decreasing in cost even when firms face different cost distributions we identify conditions under which a focal price equilibrium where firms always charge the same focal price exists and conditions under which any equilibrium is focal

indecisiveness undesirability and overload revealed through rational choice deferral three reasons why decision makers may defer choice are indecisiveness between various feasible options unattractiveness of these options and choice overload this paper provides a choice theoretic explanation for each of these phenomena by means of three deferral permitting models of decision making that are driven by preference incompleteness undesirability and complexity constraints respectively these models feature rational choice deferral in the sense that whenever the individual does not defer he chooses a most preferred feasible option as a result choices are always consistent with the weak axiom of revealed preference the three models suggest novel ways in which observable data can be used to recover preferences as well as their indecisiveness desirability and complexity components or thresholds several examples illustrate the relevance of these models in empirical and theoretical applications

household entrepreneurship and social networks panel data evidence from vietnam en utilisant un panel de microentreprises familiales au vietnam cet article met en relation le reseau social des entrepreneurs et de leur menage avec la performance de la microentreprise familiale nous abordons deux questions connexes la premiere examine la possibilite d effets differencies de l emploi des membres de la famille par rapport a des travailleurs recrutes sur le marche du travail sur la performance de la microentreprise une deuxieme question aborde les effets respectifs des differentes dimensions des reseaux sociaux sur l efficience technique de la microentreprise l hypothese testee est que au dela du canal de la productivite du travail les entrepreneurs qui sont confrontes a un environnement social defavorable pourraient produire moins efficacement et realiser une valeur ajoutee plus faible que ce qui pourrait etre possible avec la meme quantite de ressources nous montrons qu il existe en effet un differentiel de productivite entre le travail familial et le travail recrute sur le marche et nos resultats attestent de la presence d effets defavorables du reseau social pour certains menages gerant une microentreprise nous soulignons aussi l importance des reseaux professionnels pour la reussite de l entreprenariat familial

saving more in groups field experimental evidence from chile abstract we test the impact of a peer group program on savings in a sample of microcredit clients we conduct two randomized trials among these 2687 microcredit clients the first finds that a savings group treatment which combines public goal setting monitoring in the group and non financial rewards increases savings in a new savings account significantly the number of deposits grows 3 7 fold and the average balance almost doubles in contrast a more classical measure a substantially increased interest rate has no effect for most participants and raises the savings balance only for the very top of the distribution a second experiment conducted a year later tests an alternative delivery mechanism and shows that effects of similar size can be achieved through feedback text messages without meetings rewards or peer pressure given that participants are borrowing at 90 apr we discuss how and when saving more could be harmful or beneficial

macroinsurance for microenterprises a randomized experiment in post revolution egypt firms in many developing countries cite macroeconomic instability and political uncertainty as major constraints to their growth economic theory suggests uncertainty can cause firms to delay investments until uncertainty is resolved a randomized experiment was conducted in post revolution egypt to measure the impact of insuring microenterprises against macroeconomic and political uncertainty demand for macroeconomic shock insurance was high 36 7 percent of microentrepreneurs in the treatment group purchased insurance however purchasing insurance does not change the likelihood that a business takes a new loan the size of the loan or how the loan is invested this lack of effect is attributed to microenterprises largely investing in inventories and raw materials rather than irreversible investments like equipment these results suggest that contrary to what some firms profess macroeconomic and political risk is not inhibiting the investment behavior of microenterprises however insurance may still be of value to help firms cope with shocks when they do occur but the paper is unable to examine this dimension because the insurance product did not pay out over the course of the pilot

international evidence on the historical properties of business cycles we contrast properties of real quantities with those of price levels and stocks of money for ten countries over the last century although the magnitude of output fluctuations has varied across countries and periods relations among real quantities have been remarkably uniform properties of price levels however exhibit striking differences between periods inflation rates are more persistent after world war ii than before and price level fluctuations are typically procyclical before world war ii and countercyclical afterward fluctuations in money are less highly correlated with output in the postwar period but are no more persistent than in earlier periods jel e32 e31

increasing financial inclusion in the muslim world evidence from an islamic finance marketing experiment low utilization of household credit in developing countries may be partially due to religious considerations in a randomized marketing experiment in jordan this paper estimates the effect of sharia compliant loan features on demand for credit to comply with islamic law the sharia compliant product uses a bank fee rather than an interest payment structure while keeping the rest of the product features very similar sharia compliance increased the application rate for loans from 18 percent to 22 percent an increase in demand that is equivalent to a 10 percent decrease in interest rates this study also randomly varied the price of the sharia compliant loan and finds that less religious individuals are twice as elastic with respect to price as the more religious by comparing reasons for refusal across treatment groups this paper estimates that survey measures that try to assess the importance of religious objections to conventional credit overestimate the importance of this type of objection by a third

empirical generalizations from reference price research considerable theoretical justification for consumers use of psychological reference points exists from the research literature from a managerial perspective one of the most important applications of this concept is reference price an internal standard against which observed prices are compared in this paper we propose three empirical generalizations that are well supported in the marketing literature first there is ample evidence that consumers use reference prices in making brand choices second the empirical results on reference pricing also support the generalization that consumers rely on past prices as part of the reference price formation process third consistent with other research on loss aversion consumers have been found to be more sensitive to losses i e observed prices higher than reference prices than gains we also propose topics for further research on reference prices

the role of group size in group lending abstract this paper explores group size in joint liability lending primarily in the adverse selection framework with local borrower information a single standardized contract that imposes full joint liability subject to a limited liability cap is optimal further if gross returns to borrowing are moderately high this contract results in perfectly efficient lending if groups are large enough however raising group size accomplishes nothing if there is no local borrower information these results show that more is required for efficient lending than full within group insurance and highlight a complementarity between group size and social capital very similar results are shown in two different settings ex ante and ex post moral hazard though the type of social capital that complements group size varies across the settings taking a step toward modeling drawbacks of larger groups it is shown that if information deteriorates sufficiently with group size an intermediate group size does better than either extreme simulations suggest that most of the efficiency gains from larger groups are realized in group sizes below ten and that outreach and efficiency can increase dramatically when a moderate group size threshold is crossed

the role of accountants in indian self help groups a trade off between financial and non financial benefits summary self help groups shgs create a platform that allows women to meet on a weekly basis to save and to take loans if needed strict records of all saving and lending are important both to avoid conflicts in the group and to obtain access to bank loans accounting is either done by a group member internal accountant or by another villager external accountant using first hand data on shgs in northern india this paper studies whether economic and non financial returns differ depending on whether shgs meet as independent entities or with external involvement economic theory suggests that repeated interaction between individuals can help build social capital the presence of an external accountant hampers this process indeed repeated interaction is more likely to create non financial benefits in the form of mutual assistance and collective action when the accountant is a group member however these benefits come at a cost as shgs with internal accountants distribute financial benefits more unequally and the accountants themselves receive larger shares than the other members of the groups the analysis shows that the larger shares cannot be explained as a compensation for a better financial performance but that some form of elite capture occurs however other group members implicitly agree on the unequal distribution indeed members are not more likely to leave groups possibly because the loss in financial benefits is outweighed by the gain in non financial benefits

duopolistic competition with choice overloaded consumers a large body of experimental work has suggested the existence of a choice overload effect in consumer decision making faced with large menus of choice options decision makers often defer or avoid choice a suggested reason for the occurrence of this effect is that the agents attempt to avoid the cognitive effort that is associated with choosing from larger menus building on this explanation we propose and analyse a model of duopolistic competition where firms compete in menu design in the presence of a consumer population with heterogeneous preferences and overload menu size thresholds the firms strategic trade off is between offering a large menu in order to match the preferences of as many consumers as possible and offering a small menu in order to avoid losing choice overloaded consumers to their rival assuming uniformly distributed preferences we focus on symmetric pure strategy equilibria under various assumptions on the overload distribution and product markups we also propose and analyse a measure of consumer welfare that applies to this environment among other things we provide conditions for maximum and minimum variety equilibria to be possible whereby both firms either offer the entire set of available products or the same one product respectively

returns to capital in microenterprises evidence from a field experiment small and informal firms account for a large share of employment in developing countries the rapid expansion of microfinance services is based on the belief that these firms have productive investment opportunities and can enjoy high returns to capital if given the opportunity however measuring the return to capital is complicated by unobserved factors such as entrepreneurial ability and demand shocks which are likely to be correlated with capital stock the authors use a randomized experiment to overcome this problem and to measure the return to capital for the average microenterprise in their sample regardless of whether they apply for credit they accomplish this by providing cash and equipment grants to small firms in sri lanka and measuring the increase in profits arising from this exogenous positive shock to capital stock after controlling for possible spillover effects the authors find the average real return to capital to be 5 7 percent a month substantially higher than the market interest rate they then examine the heterogeneity of treatment effects to explore whether missing credit markets or missing insurance markets are the most likely cause of the high returns returns are found to vary with entrepreneurial ability and with measures of other sources of cash within the household but not to vary with risk aversion or uncertainty

repayment frequency and default in microfinance evidence from india in stark contrast to bank debt contracts most micro finance contracts require that repayments start nearly immediately after loan disbursement and occur weekly thereafter even though economic theory suggests that a more flexible repayment schedule would benefit clients and potentially improve their repayment capacity micro finance practitioners argue that the fiscal discipline imposed by frequent repayment is critical to preventing loan default in this paper we use data from a field experiment which randomized client assignment to a weekly or monthly repayment schedule and find no significant effect of type of repayment schedule on client delinquency or default our findings suggest that among micro finance clients who are willing to borrow at either weekly or monthly repayment schedules a more flexible schedule can significantly lower transaction costs without increasing client default jel 012 016 022

output growth and its volatility the gold standard through the great moderation this study examines the relationship between u s output growth and its volatility over the period 1876 i to 2012 ii we adjust the data for outliers and structural breaks we employ generalized autoregressive conditional heteroskedasticity garch and exponential garch egarch specifications normality and homoskedasticity appear only in the garch or egarch model that corrects for the outliers when including the break in the mean equation high volatility persistence remains after also accommodating the breaks in the variance equation the integrated garch effect proves spurious either for the symmetric or the asymmetric model finally our empirical results suggest that the finding of higher output growth volatility stimulating output growth and higher output growth reducing its volatility obtained from the symmetric garch in mean garch m model also proves spurious as a result of the emergence of an asymmetric effect our more appropriately specified asymmetric egarch m model suggests positive volatility in mean and level effects in the long period real gross national product series

executive compensation and the maturity structure of corporate debt executive compensation influences managerial risk preferences through executives portfolio sensitivities to changes in stock prices delta and stock return volatility vega large deltas discourage managerial risk taking while large vegas encourage risk taking theory suggests that short maturity debt mitigates agency costs of debt by constraining managerial risk preferences we posit and find evidence of a negative positive relation between ceo portfolio deltas vegas and short maturity debt we also find that short maturity debt mitigates the influence of vega and delta related incentives on bond yields overall our empirical evidence shows that short term debt mitigates agency costs of debt arising from compensation risk

paying for prominence we investigate three ways in which firms can become prominent and thereby influence the order in which consumers consider options first firms can affect an intermediary s sales efforts by means of commission payments when firms pay commission to a salesman the salesman promotes the product with the highest commission and steers ignorant consumers towards the more expensive product second sellers can advertise prices on a price comparison website so that consumers investigate the suitability of products in order of increasing price in such a market equilibrium prices are lower when search costs are higher since a firm s benefit from being investigated first increases with search costs finally consumers might first consider their existing supplier when they purchase a new product which suggests a relatively benign rationale for the prevalence of cross selling in markets such as retail banking

two sides of the same rupee comparing demand for microcredit and microsaving in a framed field experiment in rural pakistan standard models often predict that people should either demand to save or demand to borrow but not both we hypothesise instead that saving and borrowing among microfinance clients are substitutes satisfying the same underlying demand for a regular schedule of deposits and a lump sum withdrawal we test this using a framed field experiment among women participating in group lending arrangements in rural pakistan the experiment inspired by the rotating structure of a rosca involves randomly offering credit products and savings products to the same subject pool we find high demand both for credit products and for savings products with the same individuals often accepting both a credit product and a savings product over the three experiment waves this behavior can be rationalised by a model in which individuals prefer lump sum payments for example to finance a lumpy investment and in which individuals struggle to hold savings over time we complement our experimental estimates with a structural analysis in which different types of participants face different kinds of constraints our structural framework rationalises the behaviour of 75 of participants of these rationalised participants we estimate that two thirds have high demand for lump sum payments coupled with savings difficulties these results imply that the distinction between microlending and microsaving may be largely illusory participants value a mechanism for regular deposits and lump sum payments whether that is structured in the credit or the debt domain

contract structure risk sharing and investment choice few microfinance funded businesses grow beyond subsistence entrepreneurship this paper considers one possible explanation that the structure of existing microfinance contracts may discourage risky but high expected return investments to explore this possibility i develop a theory that unifies models of investment choice informal risk sharing and formal financial contracts i then test the predictions of this theory using a series of experiments with clients of a large microfinance institution in india the experiments confirm the theoretical predictions that joint liability creates two potential inefficiencies first borrowers free ride on their partners making risky investments without compensating partners for this risk second the addition of peer monitoring overcompensates leading to sharp reductions in risk taking and profitability equity like financing in which partners share both the benefits and risks of more profitable projects overcomes both of these inefficiencies and merits further testing in the field

inattentive consumers and product quality this paper studies a model in which some consumers shop on the basis of price alone without attention to potential differences in product quality a firm may offer a low quality product to exploit these inattentive consumers in the unique symmetric equilibrium of the model firms choose prices with mixed strategies similarly to varian 1980 in which some consumers purchase from a random seller without attention to market prices in our model though firms also choose quality stochastically and there is both price and quality dispersion two stylized policy interventions are considered competition policy which acts to increase the number of sellers and market transparency reforms which act to increase the fraction of attentive consumers with fewer inattentive consumers firms are less likely to cheat i e cut quality which therefore improves welfare but profit and consumer surplus can either increase or decrease when there is a large number of sellers approximately half the sellers cheat regardless of the fraction of inattentive consumers and introducing more sellers boosts consumers surplus and reduces profit while the impact on welfare is ambiguous

business cycle durations and postwar stabilization of the u s economy average postwar expansions are twice as long as prewar expansions and contractions are one half as long this paper investigates three possible explanations the first explanation is that shocks to the economy have been smaller in the postwar period the second explanation is that the composition of output has shifted from very cyclical sectors to less cyclical sectors the third explanation is that the apparent stabilization is largely spurious and is caused by differences in the way that prewar and postwar business cycle reference dates were chosen by the national bureau of economic research the evidence presented in this paper favors this third explanation copyright 1994 by american economic association

the impact of targeting technology on advertising markets and media competition an important component of advertising effectiveness is the quality of the match between advertisers and the intended recipients of ads traditionally media have been able to tighten such matches by providing content tailored for specific groups of consumers for example local media outlets attract audiences from their localities ensuring that when local advertis ers place ads they are mostly viewed by their potential customer base recently online adver tising has afforded new technologies that tar get consumers directly rather than indirectly through tailored content a leading example of such targeting is based on geographic loca tion as inferred from ip addresses so while the boston globe may have had an advantage in selling ads to boston advertisers now the new york times can offer boston based ads to consumers located in boston industry specula tion is that such technologies may spur higher demand for online advertising but that these technologies will benefit general outlets more than local newspapers 1 it may be problematic for the future of the local news industry if gen eral outlets gain at their expense to date there has been little analysis on how the market for advertising might be impacted by targeting 2 intuition suggests that an outlet

how does contract design affect the uptake of microcredit among the ultra poor experimental evidence from the river islands of northern bangladesh abstractthis study examines the demand of microcredit among ultra poor households in northern bangladesh we implemented a field experiment to identify what type of credit is best suited to their demand we found that the uptake rate by the ultra poor is the lowest for regular small cash credit followed by in kind credit we also found that the ultra poor are significantly more likely to join a microcredit programme than the moderately poor if a grace period with longer maturity is attached to a large amount of credit irrespective of whether the credit is provided in cash or in kind

labor supply of new york city cabdrivers one day at a time life cycle models of labor supply predict a positive relationship between hours supplied and transitory changes in wages because such changes have virtually no effect on life cycle wealth previous attempts to test this hypothesis empirically with time series data have not been supportive estimated elasticities are typically negative or nonsignificant such analyses however are vulnerable to measurement error and other estimation problems we use data on daily observations of wages and hours for new york city cab drivers to estimate the supply response to transitory fluctuations in wages cab drivers decide daily how many hours to supply and face wages that are positively correlated within days but largely uncorrelated between days using these data our central finding is that wage elasticities are persistently negative from 5 to 1 in three different samples even after correcting for measurement error using instrumental variables these negative wage elasticities challenge the notion that cab drivers trade off labor and leisure at different points in time and question the empirical adequacy of life cycle formulations of labor supply

the maturity structure of corporate debt we provide an empirical examination of the determinants of corporate debt maturity our evidence offers strong support for the contracting cost hypothesis firms that have few growth options are large or are regulated have more long term debt in their capital structure we find little evidence that firms use the maturity structure of their debt to signal information to the market the evidence is consistent however with the hypothesis that firms with larger information asymmetries issue more short term debt we find no evidence that taxes affect debt maturity

reference dependent consumption plans we develop a rational dynamic model in which people are loss averse over changes in beliefs about present and future consumption because changes in wealth are news about future consumption preferences over money are reference dependent if news resonates more when about imminent consump tion than when about future consumption a decision maker might to generate pleasant surprises overconsume early relative to the optimal committed plan increase immediate consumption following surprise wealth increases and delay decreasing consumption following surprise losses since higher wealth mitigates the effect of bad news people exhibit an unambiguous first order precautionary savings motive

the estimation of prewar gross national product methodology and new evidence the paper develops new methodology for the estimation of prewar gnp taps previously unused data sources and develops new estimates for the periods 1869 1908 and 1869 1928 primary among the new data sources are direct measures of output in the transportation communications and construction sectors and estimates of the consumer price index new measures of real gnp nominal gnp and the gnp deflator are developed the new estimates of real gnp are as volatile on average over the business cycle as the traditional kuznets kendrick series but dampen the amplitude of some cycles while raising the amplitude of others the new estimates of the gnp deflator are distinctly less volatile than the traditional series and in fact no more volatile than those in the postwar period

contracting with diversely naive agents in standard contract theoretic models the underlying assumption is that agent types differ in their preference or cost parameters and the principal s objective is to design contracts in order to screen this type we study a contract theoretic model in which the heterogeneity among agent types is of a cognitive nature in our model the agent has dynamically inconsistent preferences agent types differ only in their degree of sophistication that is their ability to forecast the change in their future tastes we fully characterize the menu of contracts which the principal offers in order to screen the agent s sophistication the menu does not exclude any type it provides a perfect commitment device for relatively sophisticated types and exploitative contracts which involve speculation with relatively naive types more naive types are more heavily exploited and generate a greater profit for the principal our results allow us to interpret real life contractual arrangements in a variety of industries

the american business cycle continuity and change in recent decades the american economy has experienced the worst peace time inflation in its history and the highest unemployment rate since the great depression these circumstances have prompted renewed interest in the concept of business cycles which joseph schumpeter suggested are like the beat of the heart of the essence of the organism that displays them in the american business cycle some of the most prominent macroeconomics in the united states focuses on the questions to what extent are business cycles propelled by external shocks how have post 1946 cycles differed from earlier cycles and what are the major factors that contribute to business cycles they extend their investigation in some areas as far back as 1875 to afford a deeper understanding of both economic history and the most recent economic fluctuations seven papers address specific aspects of economic activity consumption investment inventory change fiscal policy monetary behavior open economy and the labor market five papers focus on aggregate economic activity in a number of cases the papers present findings that challenge widely accepted models and assumptions in addition to its substantive findings the american business cycle includes an appendix containing both the first published history of the nber business cycle dating chronology and many previously unpublished historical data series

what do we know about the impact of microfinance the problems of statistical power and precision abstract we review all eight randomized control trial studies of microfinance published in peer reviewed journals the studies generally show no or minimal impact from providing microloans to clients and have led many researchers and policy makers to conclude that microfinance has been proven to have little or no positive impacts on people s lives we review these studies in detail and find four main results first we are able to replicate the results using the researcher s original data second we observe that while the results are generally insignificant at traditional levels most estimated coefficients are large third every one of the studies is underpowered to detect reasonable effect sizes often due to low take up of the financial product offered pooling the data from the studies together improves power for most outcomes but minimum detectable effect sizes are still large finally when we run analysis on a pooled sample we find a treatment effect on business profits business revenue and household assets significant at the 1 level we argue that existing research on the impact of microfinance is generally underpowered to identify impacts reliably and suggests that we still know very little about the impact of microfinance we end by discussing ways to improve future research

joint liability versus individual liability in credit contracts abstract i offer an explanation for the coexistence of joint liability and individual liability microcredit contracts i show that both contracts maximize welfare when credit is rationed due to limited liability but for different borrowers borrowers monitor each other when liability is joint while the lender monitors individual loans joint liability offers poorer borrowers larger loans with less monitoring effort than would have to be exerted by the lender individual liability offers the wealthier among credit constrained borrowers larger loans even without monitoring the theory explains why individual loans serve the wealthier among poor borrowers and are larger and why businesses funded with individual loans grow more

bogus joint liability groups in microfinance abstract in a random sample of clients of cfpam the largest microlender in china 73 of all joint liability groups practice lei da hu that is one person uses all group members loans in a single project we call such borrower groups bogus groups the lei da hu practice violates a key premise of group lending that each borrower must use their loan in a separate project what we call standard group we extend the theory of group lending by analyzing the endogenous formation and coexistence of standard and bogus groups and characterize the efficient lending terms the chosen group form depends on the borrower productivities and probability of success bogus groups are formed by heterogeneous borrowers when the gains from larger expected output exceed the foregone default risk diversification accounting for bogus groups in their lending strategy can help mfis raise productive efficiency and borrower welfare

the return to capital in ghana we show that the real return to capital in ghana s informal sector is high for farmers we find annual returns ranging from 205 350 in the new technology of pineapple cultivation and 30 50 in well established food crop cultivation we also examine the relative prices of durable goods of varying durability and estimate a lower bound to the opportunity cost of capital of 60 this abstract was borrowed from another version of this item

price competition with consumer confusion this paper proposes a model in which identical sellers of a homogenous product compete in both prices and price frames i e ways to present price information we model price framing by assuming that firms frame choices affect the comparability of their price offers consumers may fail to compare prices due to frame differentiation and due to frame complexity in the symmetric equilibrium the firms randomize over both price frames and prices and make positive profits this result is consistent with the observed coexistence of price and price frame dispersion in the market we also show that i the nature of equilibrium depends on which source of consumer confusion dominates and ii an increase in the number of firms can increase industry profits and harm consumers

competition for attention we present a model of market competition in which consumers attention is drawn to the products most salient attributes firms compete for consumer attention via their choices of quality and price strategic positioning of a product affects how all other products are perceived with this attention externality depending on the cost of producing quality some markets exhibit commoditized price salient equilibria while others exhibit de commoditized quality salient equilibria when the costs of quality change innovation can lead to radical shifts in markets as in the case of decommoditization of the coffee market by starbucks in the context of financial innovation the model generates the phenomenon of reaching for yield

competing for consumer inattention consumers purchase multiple types of goods but may be able to examine only a limited number of markets for the best price we propose a simple model that captures these features conveying new insights a firm s price can deflect or draw attention to its market and consequently limited attention introduces a new dimension of cross market competition we characterize the equilibrium and show that having partially attentive consumers improves consumer welfare with less attention consumers are more likely to miss the best offers but enhanced cross market competition decreases average price paid as leading firms try to stay under the consumers radar

uncertain demand consumer loss aversion and flat rate tariffs we consider a model of firm pricing and consumer choice where consumers are loss averse and uncertain about their future demand possibly consumers in our model prefer a flat rate to a measured tariff even though this choice does not minimize their expected billing amount a behavior in line with ample empirical evidence we solve for the profit maximizing two part tariff which is a flat rate if a marginal costs are not too high b loss aversion is intense and c there are strong variations in demand moreover we analyze the optimal nonlinear tariff this tariff has a large flat part when a flat rate is optimal among the class of two part tariffs

contextual inference in markets on the informational content of product lines context can influence decisions this malleability of choice is usually invoked as evidence that people do not maximize stable preference orderings in a market equilibrium however context conveys payoff relevant information to consumers consequently these consumers rationally violate naive formulations of standard choice theoretic principles i identify informational asymmetries under which apparently anomalous behaviors namely the compromise effect and choice overload arise as market equilibria firms respond to consumers contextual inference in case of the compromise effect a firm may introduce premium loss leaders expensive goods of overly high quality that increase the demand for other goods

consideration sets and competitive marketing we present a model of competitive marketing based on the notion that consumers are boundedly rational and that firms use marketing tactics in an attempt to influence consumers decision process the standard model of consumer behaviour assumes that the consumer applies well defined preferences to a perfectly perceived set of available alternatives we retain the assumption that consumers have stable preferences but relax the assumption that they have a perfect perception of what is relevant for their consumption problem thus allowing firms to manipulate that perception our aim is to explore the market implications of this departure from the standard model especially for the way firms deploy marketing strategies in competitive environments the cornerstone of our model is the observation that in the modern marketplace consumers face an overwhelmingly large variety of products and therefore often use screening criteria deliberate as well as unconscious in order to reduce the number of relevant alternatives as a result consumers apply their preferences not to the set of objectively feasible alternatives but to a potentially smaller set which they construct at an earlier stage of the decision process borrowing a term from the marketing literature we refer to this set as the consideration set the basic idea underlying this term is that consumers may be unaware of some of the feasible products and even when they become aware of a new product they still need to be persuaded to consider it as a potential substitute to their currently consumed product

intertemporal incentives under loss aversion this paper studies the intertemporal allocation of incentives in a repeated moral hazard model with reference dependent preferences as in k oszegi and rabin 2009 besides consumption utility the agent experiences utility from the change in his beliefs about present and future eort and income when eort plans are rational the prospect of being disappointed by the outcome realization equals that of being pleasantly surprised and hence the loss averse agent is on net hurt by news in contrast to the prediction with classical preferences but consistent with real world contracts if consumption utility is not too concave and news about present income carries suciently larger weight in utility than news about future income a contract setting a current

consumer information and firm pricing negative externalities from improved information we analyze the effect of consumer information on firm pricing in a model where consumers search for prices and matches with products we consider two types of consumers uninformed consumers do not know in advance their match values with firms whereas informed consumers do prices are lower the greater the proportion of uninformed consumers hence uninformed consumers exert a positive externality on the others in contrast to standard results this leads to socially excessive investment in gathering prior information when aggregate demand is price sensitive

measuring microfinance assessing the conflict between practitioners and researchers with evidence from nepal summary what accounts for the discrepancy between microfinance impact claims of development practitioners and the far smaller impacts found in experimental studies we demonstrate in a simple theoretical framework why before and after observations of practitioners overstate microfinance impacts and why estimations in some recent randomized trials understate the average treatment effect on the treated att our empirical study uses a unique data set from eastern nepal to study the impact of microfinance in villages where microfinance did not previously exist we find that approximately three fourths of the apparent impact of microfinance observed by practitioners is an illusion driven by correlated unobservable factors

repayment flexibility in microfinance contracts theory and experimental evidence on take up and selection abstract this paper studies the impact of introducing repayment flexibility in microfinance contracts i build an adverse selection model that predicts the existence of a separating equilibrium where lenders are able to achieve higher profits by simultaneously offering a rigid and a flexible repayment schedule instead of just a rigid contract lab in the field games with indian microentrepreneurs confirm the model predictions i offer subjects both a flexible and a rigid repayment schedule and exogenously vary the price of the flexible schedule i find that high revenues borrowers are more likely to take up the flexible schedule than low revenues ones and even more so when the flexible schedule is more expensive than the rigid one risk averse borrowers on the contrary are more likely to stick to the rigid contract when this is cheaper than the flexible contract the paper thus indicates that lenders should offer a menu of contracts where the flexible and the rigid contract are provided simultaneously at different prices back of the envelope calculations indeed suggest that this mixed contract is more profitable than the standard rigid microfinance contract

experimental evidence on returns to capital and access to finance in mexico a strong theoretical argument for focusing on access to finance is that financial market imperfections can result in large inefficiencies as firms with productive investment opportunities underinvest lack of access to finance is a frequent complaint of microenterprises which account for a large share of employment in developing countries however assessing the extent to which a lack of capital affects their business profits is complicated by the fact that business investment is likely to be correlated with a host of unmeasured characteristics of the owner and firm such as entrepreneurial ability and demand shocks in a randomized experiment that gave cash and in kind grants to small retail firms providing an exogenous shock to capital the shock generated large increases in profits with the effects concentrated among firms that were more financially constrained the estimated return to capital was at least 20 33 percent a month three to five times higher than market interest rates

does detrending matter for the determination of the reference cycle and the selection of turning points we examine the sensitivity of turning points classification to detrending and compare the implied cycles to those derived by nber or doc researchers two dating rules are considered turning point dates are broadly insensitive to detrending with one dating rule but not the other and many procedures generate false alarms and miss several common turning points with the latter one amplitude and duration properties are also sensitive detrending and dating rules the hodrick and prescott and a frequency domain filters are best in mimicing nber and doc cycles regardless of the dating rule used