wage shocks and consumption variability in mexico during the 1990s this paper presents evidence on the relationship between shocks to relative male wages and changes in household consumption in mexico during the 1990s decade which is a period characterized by high volatility apart from performing analysis of this type for mexico for the first time the paper has mainly two contributions the first is the use of alternative data sources to construct instrumental variables for wages the second is to examine differences across four consumption categories nondurable goods durable goods education and health our results for nondurable goods consumption reject the hypothesis that mexican households are able to ensure idiosyncratic risk for the comparisons across consumption categories the conclusion is that households in mexico tend to react to temporary shocks by contracting the consumption of goods that represents longer run investment in human capital which makes them more vulnerable in the future

underemployment with liquidity constrained multi period firms s grossman and o d hart amer econ rev 71 1981 301 307 have shown that underemployment can occur if firms are risk averse and have better information than workers c kahn and j scheinkman j econ theory 35 1985 343 365 replace the assumption of risk aversion with the more basic assumption of limited liability but they obtain risk averse behaviour only when the liquidity constraint is currently binding a t period model is developed here to show that firms will also display risk aversion if the liquidity constraint might become binding in the future

how do households cope with aggregate shocks evidence from the mexican peso crisis abstract household surveys are used to examine the micro impact of a large aggregate shock the 1995 mexican peso crisis this paper examines how the impact of the crisis differed across households and the adjustment mechanisms used by households to cope with this shock the coping strategies examined include changes in household structure fertility household labor supply child schooling and interhousehold transfers many of the mechanisms households use to adapt to idiosyncratic shocks are found not to work with an aggregate shock

the household response to persistent natural disasters evidence from bangladesh we examine the short run economic impacts of recurrent flooding on bangladeshi households surveyed in 2000 2005 and 2010 in 2010 household income and expenditure survey hies households answered a set of questions on whether they were affected by flood and its likely impacts we identify two treatment affected groups by using the self reported data and historical rainfall data based flood risk index we estimate a difference indifference did model to quantify the impacts on income expenditure asset and labour market outcomes and further extend our analysis to different income and expenditure brackets overall we find robust evidence of negative impacts on agricultural income and expenditure intriguingly the extreme poor i e the bottom 15th quintile experience significant positive impacts on agricultural income in the self reported treatment case

implicit contracts moral hazard and unemployment this paper considers a firm whose marginal revenue product of labor is a random variable we derive the form of an optimal long term contract between workers and the firm under the assumption that labor s marginal product is observed by the firm but not by the workers we show that the existence of asymmetric information causes unemployment to be greater than in a situation where information about labor s marginal product is public or where employment is determined in spot markets in particular unemployment can occur when the marginal product of labor exceeds the reservation wage

multiproduct two part tariffs abstract two part pricing by a multiproduct monopoly and a differentiated oligopoly are examined and compared two part pricing policies are seen to depend on whether products are complements or substitutes and on whether or not the market is segmented a principle result is that although competition tends to lower unit prices there is no corresponding tendency for competition to reduce entry fees the unit pricing rule is related to the ramsey pricing rule oligopoly equilibrium unit prices equal marginal cost when there is one consumer type

unemployment assistance and transition to employment in argentina abstractin 2001 2 argentina experienced a wrenching economic crisis plan jefes implemented in may 2002 was argentina s institutional response to the increase in unemployment and poverty triggered by the crisis the program provided a safety net and appears to have protected some families against indigence despite this success the continued existence of the program which provides benefits to eligible unemployed individuals for an unlimited duration may have unappealing consequences reliance on the plan may reduce the incentive to search for work and in the long run may damage individual employability and perpetuate poverty motivated by these concerns this article examines the effect of participating in plan jefes on the probability of exiting unemployment regardless of the data set the specification and the empirical approach the article shows that plan enrollees are at least 14 percentage points less likely to transit to employment as compared to individuals who applied but did not join the

do crises catalyze creative destruction firm level evidence from indonesia using indonesian manufacturing census data 1991 2001 this paper rejects the hypothesis that the east asian crisis unequivocally improved the reallocative process the correlation between productivity and employment growth did not strengthen and the crisis induced the exit of relatively productive firms the attenuation of the relationship between productivity and survival was stronger in provinces with comparatively lower reductions in minimum wages but not due to reduced entry changing loan conditions or firms connected to the suharto regime suffering disproportionately on the bright side firms that entered during the crisis were relatively more productive which helped mitigate the reduction in aggregate productivity

ex ante and ex post labor supply response to risk in a low income area abstract this paper tests for ex ante and ex post labor supply responses to weather risk for rural indian farm households the analysis uses panel data on 2115 households spanning 13 states in rural india merged with a 22 year series of district level rainfall data ex ante households facing riskier distributions of rainfall are more likely to participate in the labor market ex post unexpectedly bad weather and low rainfall increase labor force participation

optimal two part tariffs in a model of discrete choice abstract in this paper we study welfare optimal two part tariffs in a model of discrete choice the determinants of the sign and magnitude of the fixed and variable tax are analysed in terms of the nature and degree of consumer heterogeneity the price sensitivities of participation probabilities and conditional demands and the nature of distributional concerns in the absence of distributional concerns the model generalises the corrected ramsey rule for the variable tax and it shows that in the absence of collection or fixed participation costs the fixed fee may be negative the conditions that determine the sign of the participation fee turn out to have an intuitive economic interpretation finally the implications of distributional concerns for the optimal fixed and variable taxes are analysed

humanitarian crises and adolescent well being knowledge gaps and prospects adolescence constitutes the second and final window of human growth and a period of specific vulnerabilities such as early pregnancy early marriage hiv infection suicide violence alcohol and drugs only a limited body of research investigates the effects of humanitarian crises on the human capital and well being of adolescents the evidence focuses on the short term effects of conflict and to a lesser extent natural disasters on education physical health and nutrition but not on mental health most analyses examine the situations of individuals exposed in utero and young childhood but rarely during adolescence typically missing are robust empirical identification strategies and estimates on heterogeneous effects across age or gender the lack of quality data and challenges in defining adolescence establishing causality or ensuring ethical research explain the knowledge gaps possible ways to expand the evidence base include mixing georeferenced data on individual location with georeferenced data on crises sharpening quasi experimental analytical techniques and reconsidering the current timing of demographic data collection now spanning 4 or 5 year intervals the failure to make such adjustments will end by ignoring specific vulnerabilities among adolescents and render sustainable progress in well being globally narrowing inequalities and guaranteeing human rights to all more difficult to achieve

social capital and coping with economic shocks an analysis of stunting of south african children abstract south african households live in an environment characterized by risks and many face a significant probability of experiencing economic losses that threaten their daily subsistence using household panel data that include directly solicited information on economic shocks and employing household fixed effects estimation we explore how well households cope with shocks by examining the effects of shocks on child nutritional status unlike in the idealized village community some households appear unable to insure against risk particularly when others in their communities simultaneously suffer large losses households in communities with more social capital however seem better able to weather shocks

repeated insurance contracts with adverse selection and limited commitment in this paper we describe the sequential equilibria of a two period monopoly with asymmetric information and limited commitment in the market for accident insurance the role of learning is analyzed and the possible sequential pooling semiseparating and separating equilibria are described where the probability that a buyer will make a revealing first period contract choice is equal to zero is positive and is equal to one respectively in the absence of discounting we show that only pooling and semiseparating equilibria exist provide a limited characterization of when these equilibria occur and show that accident contingent insurance and accident underreporting occur with positive probability along the equilibrium path of the game

quantifying household resilience with high frequency data temporal dynamics and methodological options abstract resilience as a metric is of growing interest to development researchers and practitioners particularly for those whose work concerns the effects of climate change conflict and epidemics the growing need for resilience measurements motivates this research measurements that reflect the complex dynamic features of welfare among populations living in shock prone contexts it presents insights from three measurement approaches to explore the dynamic intra annual effects of shocks on household well being mediated by household characteristics one based on shock persistence one based on the stochastic distribution of well being and one driven by machine learning algorithms and based on predictive power the insights gained from the comparison of measurement approaches offer a fuller understanding of the factors driving resilience than any single approach on its own the paper harnesses a novel data set from the measuring indicators for resilience analysis project which each month tracks shocks and food security indicators for one year in a highly food insecure population in malawi across approaches our study consistently finds that shocks and food insecurity are very persistent and that households living in the flood plains are more resilient when focusing on specific shocks such as illness the gender of the household head matters as well a broader search for predictors of food insecurity using lasso and random forest algorithms uncovers other characteristics that affect resilience such as the distance to drinking water the paper demonstrates how multiple complementary approaches can identify different but overlapping factors related to resilience painting a fuller richer picture it also demonstrates the empirical benefits derived from using high frequency data sets in the study of resilience

renegotiation and information revelation over time the case of optimal labor contracts the paper analyzes the issue of commitment in grossman and hart s model of optimal labor contracts under asymmetric information about firm profitability we extend their framework by allowing employment to vary over time at equidistant intervals when both parties can precommit ex ante not to renegotiate the contract this replicates the grossman hart outcome each subperiod when precommitment is not possible information revealed through the contract can create pareto improving renegotiation opportunities and the issue of optimal information revelation arises the paper analyzes the impact of ex post pareto improving renegotiations on the optimal contract

bid rents under unemployment risk delayed versus timeless uncertainty in this paper we analyze the impact of uncertainty on the level and properties of the bid rent function we show that these properties strongly depend upon the vr ay in which uncertainty is introduced into the model delayed versus timeless uncertainty we also investigate the implication of income uncertainty for the city equilibrium we show that under timeless uncertainty a more generous unemployment benefits program may be in the long run welfare reducing in an urban setting c 1997 academic press

production efficiency and optimal pricing in intermediate good regulated industries abstract this paper reconsiders the relationship that exists between the production efficiency result of diamond and mirrlees and the ramsey rule specifically the paper considers a general equilibrium hierarchical structure of production one industry sells at least some of its output to another regulated industry a single regulatory agency must balance the budgets of all regulated industries in the aggregate so as to maximize the utility of a representative individual the ramsey rule always holds pricing rules however are far more complex the optimum may have some negative price cost margins and may not involve production efficiency

optimal labour contracts under asymmetric information an introduction the review of economic studies has instituted a new series of lectures to be given annually by a younger british economist at the association of university teachers of economics meetings the choice of lecturer is determined by a panel whose members are currently professors hahn mirrlees and nobay this paper is a revised version of the first lecture in the series it was presented at the aute meeting held at the university of surrey in april 1982 and was refereed in the usual way mak

conceptual developments in the economics of transportation an interpretive survey the objective in this paper is to survey the literature in transportation economics exploring two basic themes first the conceptual developments in the analysis of supply and demand which recognizes noteworthy aggregation biases in the empirical work on aggregate data and indicate that a correct analysis of the issues should take place at a highly disaggregated level second the use of these conceptual developments to evaluate efficiency aspects of transportation pricing investment and the impact of government regulation on resource allocation and distribution in the transportation sector it is important to acknowledge that the survey is based on research throughout the world but our institutional perspective and to some extent the topics that are covered is based largely on the u s experience author

the dynamics of incentive contracts the paper studies a simple two period principal agent model in which the principal updates the incentive scheme after observing the agent s first period performance the agent has superior information about his ability the principal offers a first period incentive scheme and observes some measure of the agent s first period performance cost or profit which depends on the agent s ability and unobservable first period effort the relationship is entirely run by short term contracts in the second period the principal updates the incentive scheme and the agent is free to accept the new incentive scheme or to quit the strategies are required to be perfect and updating of the principal s beliefs about the agent s ability follows bayes rule the central theme of the paper is that the ratchet effect leads to much pooling in the first period first for any first period incentive scheme there exists no separating equilibrium second when the uncertainty about the agent s ability is small the optimal scheme must involve a large amount of pooling the paper also gives necessary and sufficient conditions for the existence of partition equilibria and looks at the effect of cost uncertainty

wealth weather risk and the composition and profitability of agricultural investments despite the growing evidence that farmers in low income environments are risk averse there has been little empirical evidence on the importance of risk in shaping the actual allocation of production resources among farmers differentiated by wealth the authors use panel data on investments in rural india to examine how the composition of productive and nonproductive asset holdings varies across farmers with different levels of total wealth and across farmers facing different degrees of weather risk income variability is a prominent feature of the experience of rural agents in low income countries the authors report evidence based on measures of rainfall variability that the agricultural investment portfolio behavior of farmers in such settings reflects risk aversion due evidently to limitations on consumption soothing mechanisms such as crop insurance or credit markets the authors results suggest that uninsured weather risk is a significant cause of lower efficiency and lower average incomes a one standard deviation decrease in weather risk measured by the standard deviation of the timing of the rainy season would raise average profits by up to 35 percent among farmers in the lowest wealth quartile moreover rainfall variability induces a more unequal distribution of average incomes for a given distribution of wealth wealthier farmers are willing to absorb significant risk without giving up profits to reduce production risk smaller farmers have to invest their limited wealth in ways that reduce their exposure to risk at the cost of lower profit rates the authors found that at high levels of rainfall variability differences in rates of profit per unit of agricultural assets were similar across classes of wealth but over the sample range of rainfall variability these rates of profit were always higher for the poorer farmers than for the wealthier ones suggesting that the disadvantages of small farmers in risk diffusion are more than offset by their labor cost advantage

worker reputation and productivity incentives this paper examines firms problem of how to motivate risk averse workers not to shirk when workers utility functions are unknown the problem is studied in a 2 period setting in which a worker s actions today can influence not only his compensation today but the firms beliefs about his preferences firms cannot credibly commit to ignore the revealed information so workers actions today affect their future compensation contracts it is shown that in the wilson miyazaki equilibrium firms may pool workers and learn about their types gradually over time rather than inducing them to separate and reveal their types immediately

household behaviour in times of political change evidence from egypt abstract using representative household survey data we study the short term effects of the 2011 egyptian uprisings on household behaviour in terms of education and health expenditure as well as savings we construct a measure of political instability by analysing the number of fatalities during political protests throughout the country difference in difference estimations show that affected households increased spending on education especially on their sons higher education the increase in education expenditure is particularly prominent in areas where households were in favour of a regime change we argue that after the fall of mubarak those households had a positive outlook towards the future with better labour market prospects and therefore invested more in their sons education at the same time households decreased spending on health and increased savings which can be interpreted as precautionary behaviour our results are robust to placebo tests excluding cairo spillovers and alternative ways of measuring political instability

poverty traps and nonlinear income dynamics with measurement error and individual heterogeneity theories of poverty traps stand in sharp contrast to the view that anybody can make it through hard work and thrift however empirical detection of poverty traps is complicated by the lack of long panels measurement error and attrition this paper shows how dynamic pseudo panel methods can overcome these difficulties allowing estimation of non linear income dynamics and testing for the presence of poverty traps the paper explicitly allows for individual heterogeneity in income dynamics to account for the possibility that particular groups of individuals may face traps even if the average individual does not these methods are used to examine the evidence for a poverty trap in labor earnings income and expenditure in mexico and are compared to panel data estimates from a short rotating panel the results do find evidence of nonlinearities in household income dynamics and demonstrate large bias in the panel data estimates nevertheless even after allowing for heterogeneity and accounting for measurement error the paper finds no evidence of the existence of a poverty trap for any group in the sample

theories of regulation and the deregulation movement we started this paper with what seemed a paradox no sooner had the various special interest theories of regulation achieved a degree of acceptance than regulatory reforms were instituted in many industries consistent with the public interest on the face of it this appeared to give reason to doubt the validity of the special interest theories

employment with asymmetric information in an economy without informational and other distortions entrepreneurs and workers can write labor contracts that support a pareto optimal allocation of resources this paper is an attempt to characterize contracts when enterpreneurs are better informed about the state of nature than are their workers asymmetric information generally results in a suboptimal allocation of both risk and worker effort in particular if consumption and leisure are perfect substitutes employment will be less than fully pareto optimal in all but the most favorable states of nature

public policy markets and household coping strategies in bangladesh avoiding a food security crisis following the 1998 floods abstract at their peak the 1998 floods covered two thirds of bangladesh causing severe damage to the major rice crop and threatening the food security of tens of millions of households in this paper we first highlight the contribution of government policy interventions including trade liberalization in the early 1990s to stabilization of rice markets during and after the flood then using a panel data set covering 750 households in three rounds over a 13 month period we analyze impacts of the flood on household assets consumption and nutritional outcomes finally we present empirical estimates of the contribution of rice market stabilization and government transfers to household food consumption

disaster aid and preferences the long run impact of the tsunami on giving in sri lanka summary do natural disasters produce effects on preferences of victims in the long run we test the impact of the tsunami shock on generosity of a sample of sri lankan affected unaffected microfinance borrowers seven years after the event specifically we test the effect of the shock at the extensive margin by comparing damaged with non damaged individuals in terms of giving and expected giving in a dictator game moreover at the intensive margin we compare the participants based on the amount of damage experienced and recovery aid received the advantage of this last comparison is that differences in observables between the groups are minimized we reduce further identification problems by selecting a random sample of damaged and non damaged borrowers belonging to the same microfinance organization who are therefore likely to share some important common traits that are usually unobservable to researchers we complete our identification strategy with weighted least squares instrumental variable estimates and a sensitivity analysis on the exogeneity assumption the main findings of the paper support the hypothesis that the shock affects participants preferences in the long run first the tsunami negatively affects generosity at the extensive margin as those who suffered at least one damage give and expect less than those who did not second while large recovery assistance does not directly affect giving and expected giving it increases especially the latter indirectly i e when interacted with the number of damages our results reconcile that part of the literature showing evidence of natural shocks having a detrimental effect on social preferences fleming chong alberto bejarano 2011 cassar grosjean whitt 2013 with that supporting instead a positive link solnit 2009 whitt wilson 2007 cassar healy von kessler 2011 furthermore since our study focuses on the long run impact of a natural disaster previous results on short run effects are not necessarily inconsistent with ours

the impact of natural disasters on household income expenditure poverty and inequality evidence from vietnam natural disasters are expected exacerbate poverty and inequality but little evidence exists to support the impact at household level this article examines the effect of natural disasters on household income expenditure poverty and inequality using the vietnam household living standard survey in 2008 the effects of a natural disaster on household income and expenditure corrected for fixed effects and potential endogeneity bias are estimated at 6 9 and 7 1 declines in vietnamese household per capita income and expenditure respectively natural disasters demonstrably worsen expenditure poverty and inequality in vietnam and thus should be considered as a factor in designing poverty alleviation policies

economies of scale household size and the demand for food household scale economies are plausibly attributed to shared household public goods that make larger households better off at the same level of per capita resources larger households should therefore have higher per capita consumption of private goods such as food provided that they do not substitute too much toward the effectively cheaper public goods the evidence shows exactly the opposite data from rich and poor countries indicate that at constant per capita total expenditure the per capita demand for food decreases with household size and that it does so most in the poorest countries where substitution should be the least

migration risk and liquidity constraints in el salvador abstract this article utilizes panel data from el salvador to investigate the use of transnational migration as an ex post risk management strategy i show that adverse agricultural conditions in el salvador increase both migration to the united states and remittances sent back to el salvador i show that in the absence of any agricultural shocks the probability that a household sent members to the united states would have decreased on average by 24 26 i also show that the 2001 earthquakes reduced net migration to the united states a one standard deviation increase in earthquake damage reduced the average probability of northward migration by 37 11 the evidence suggests that the effects of the earthquakes had more to do with households retaining labor at home to cope with the effects of the disaster than with the earthquakes disrupting migration financing

the macroeconomic consequences of disasters abstract natural disasters have a statistically observable adverse impact on the macro economy in the short run and costlier events lead to more pronounced slowdowns in production yet interestingly developing countries and smaller economies face much larger output declines following a disaster of similar relative magnitude than do developed countries or bigger economies a close study of the determinants of these adverse macroeconomic output costs reveals several interesting patterns countries with a higher literacy rate better institutions higher per capita income higher degree of openness to trade and higher levels of government spending are better able to withstand the initial disaster shock and prevent further spillovers into the macro economy these all suggest an increased ability to mobilize resources for reconstruction financial conditions also seem to be of importance countries with more foreign exchange reserves and higher levels of domestic credit but with less open capital accounts appear more robust and better able to endure natural disasters with less adverse spillover into domestic production

household income strategies and natural disasters dynamic livelihoods in rural nicaragua this paper assesses the impact of hurricane mitch on livelihood strategies of rural households in nicaragua through destruction or distress sales of productive assets a hurricane or another natural hazard could induce people with relatively remunerative livelihoods to choose more defensive strategies which allow them to survive but at a permanently lower welfare level than before using panel data from before and after hurricane mitch we find that livelihood strategies can be grouped into three welfare categories annual farming and farm employment generate low incomes whereas nonfarm wage employment and livestock farming result in relatively high incomes perennial farming nonfarm self employment and annual cropping with nonfarm employment take an intermediate position high welfare strategies were associated with high levels of capital and the number of people involved was very similar between different years suggesting that households following low welfare strategies were trapped in poverty however many households moved actively between strategies of different welfare levels this indicates that there was no absolute poverty threshold but also that being able to initiate a relatively profitable livelihood strategy was no guarantee that this strategy could be maintained there is no evidence that hurricane mitch affected livelihood strategy transitions livelihood mobility was similar for households inside and outside mitch affected areas

using weather variability to estimate the response of savings to transitory income in thailand this paper measures the extent to which farmers are able to use savings and dissavings to smooth consumption in response to unexpected shocks to income time series information on regional rainfall is used to construct estimates of transitory income due to rainfall shocks the relationship between these measures of transitory income and savings indicates that farm households save a significantly higher fraction of transitory income than nontransitory income jel d91 016 the incomes of farm households in developing countries are notorious for being both low and uncertain policies that increase the incomes of farmers may well be different

smoothing consumption by smoothing income hours of work responses to idiosyncratic agricultural shocks in rural india while research has demonstrated that farm households in developing economies are able to protect consumption from idiosyncratic crop shocks little evidence shows how this is achieved this paper examines the extent to which labor markets allow households to shift labor from farm to off farm employment and the extent to which such a shift explains the observed lack of correlation between consumption and idiosyncratic crop shocks the empirical analysis uses a novel measure of the idiosyncratic crop income shock which utilizes information on start of season cropping choices to more accurately estimate household expectations of weather

in the eye of the storm the welfare impacts of a hurricane summary the impact of a large covariant shock namely hurricane mitch is examined in the context of household asset holdings in rural nicaragua utilizing household panel data from the period it is found that the hurricane did not have an adverse impact on the ownership of productive assets among the affected households on average on the other hand nonproductive asset holdings seem to have been significantly reduced a further examination confirms that the shock affected the poorest households disproportionally especially in terms of nonproductive assets finally this study presents strong suggestive evidence of a geographical poverty trap within the shock affected areas of the country

household behavior under income uncertainty in a monocentric urban area abstract for a household living outside of but commuting to and from the cbd of an urban area and experiencing income uncertainty housing consumption and location distance from the cbd are inversely related to the probability of unemployment and directly related to the level of unemployment compensation under fairly unrestrictive assumptions under more restrictive assumptions it is found that these variables are inversely related to housing price and transportation costs finally income compensation causes housing consumption and location to be directly related to the probability of unemployment and the level of unemployment compensation

natural disasters household welfare and resilience evidence from rural vietnam summary the study uses commune fixed effects regressions to estimate the effect of natural disasters on welfare and poverty of rural households in vietnam and subsequently examines household and community characteristics that can strengthen resilience of households to natural disasters we find that all the three disaster types considered in this study including storms floods and droughts have negative effects on household income and expenditure households in communes with higher mean expenditure and more equal expenditure distribution are more resilient to natural disasters access to micro credit internal remittances and social allowances can help households strengthen the resilience to natural disasters

the hidden costs of political instability evidence from kenya s 2007 election crisis abstract this paper studies the microeconomic impacts of the political crisis and civil conflict that immediately followed the december 2007 presidential election in kenya income expenditures and consumption dramatically declined for a broad segment of the rural population for the duration of the conflict to make up for the income shortfall women who supply transactional sex engaged in higher risk sex both during and after the crisis while this particular crisis was likely too short for these behavioral responses to seriously increase the risk of hiv or other stis for these women such responses could have long term repercussions for health in countries with longer or more frequent crises overall our results suggest that social unrest can be an important channel through which political instability can affect long term outcomes such as health

risk financial markets and human capital in a developing country this paper explores the link between financial market incompleteness and human capital accumulation we examine how child school attendance responds to seasonal fluctuations in the income of agrarian households using panel data from rural india to pinpoint market imperfections we study responses to aggregate and idiosyncratic as well as to anticipated and unanticipated income shocks our main finding is that seasonal fluctuations in school attendance are a form of self insurance but one which does not result in a substantial loss of human capital on average

calories and poverty during a prolonged crisis abstract we study how calorie intake changes during prolonged crises by studying the calorie intake of households when exposed to short term and long term income and price shocks we use data from household surveys of mexican households during the income and price crises periods of 1994 to 1998 and 2006 to 2010 our focus is on low income mexican households those with the lowest 25 of expenditure per capita there is little effect on calorie intake following an income decline in the short run once households are exposed to reduced incomes for a longer period calorie intake falls households are able to weather short term fluctuations in income by shifting consumption to food items that are cheaper per calorie such as staple foods by consuming more foods at home instead of outside the home and by postponing expenditures on durable and semi durable goods when exposed to the income shock over a longer period of time we posit that households are not able to defer durable and semi durable purchases any more so their calorie consumption drops our results suggest that mexican households may be able to sustain calorie intake when faced with an income shock but it is less likely that they are able to do so if the income shock persists the government may want to support poor constituents when they are faced with prolonged crises

the unintended consequence of an export ban evidence from benin s shrimp sector summary the inability of benin to comply with eu standards led to a ban on its shrimp exports we show that the ban had a negative impact on the income of fishmongers and fishermen in the short run but also several years after it was lifted the impact persisted because exports to the eu did not revive and the local shrimp demand could not fully compensate for the loss of the eu market a small number of local actors coped with the ban by moving out of the sector but the large majority were locked in the local fishery sector

investigating the determinants of household welfare in cote d ivoire to predict the effect of economic policies on household welfare one should first understand which characteristics of households and of the localities in which they live enable them to raise their welfare levels this paper outlines a simple procedure for investigating the determinants of household welfare and demonstrates its use with recent data from cote d ivoire despite the relative simplicity much information is obtained from its use on cross sectional survey data results specific to cote d ivoire include high low returns to education in urban rural areas high benefits from cocoa land relative to coffee land a significant impact on economic welfare from the availability of medical services and no apparent benefits from agricultural extension services

dynamic labor contracts under asymmetric information abstract this paper discusses the distortion of employment within a two period asymmetric information contracting model in which an exogenous demand shock is serially correlated and is known only to firms the obtained results show that serial correlations of the state of nature can cause not only underemployment but also overemployment even when overemployment never occurs in the context of a static asymmetric information contracting model

a note on overemployment underemployment in labor contracts under asymmetric information abstract models of labor contracts under asymmetric information may predict either overemployment or underemployment this paper shows that this result depends crucially on whether or not leisure is a normal good if firms are risk neutral

informing climate adaptation a review of the economic costs of natural disasters abstract this paper reviews the empirical literature on the economic impacts of natural disasters to inform both the modeling of potential future climate damages and climate adaptation policy related to extreme events it covers papers that estimate the short and or long run economic impacts of weather related extreme events as well as studies identifying the determinants of the magnitude of those damages including fatalities the paper also reviews the small number of empirical papers on the potential extent of adaptation in response to changing extreme events

optimal departures from marginal cost pricing focuses on departures from marginal cost pricing optimal allocation or resources level of tax revenue that will be collected by the government theorems developed for resource allocation ebsco

financial crisis health outcomes and aging mexico in the 1980s and 1990s abstract we study the impact of economic crisis on health in mexico there have been four wide scale economic crises in mexico in the past two decades the most recent in 1995 96 we find that mortality rates for the very young and the elderly increase or decline less rapidly in crisis years as compared with non crisis years in the 1995 96 crisis mortality rates were about 5 to 7 percent higher in the crisis years compared to the years just prior to the crisis this translates into a 0 4 percent increase in mortality for the elderly and a 0 06 percent increase in mortality for the very young we find tentative evidence that economic crises affect mortality by reducing incomes and possibly by placing a greater burden on the medical sector but not by forcing less healthy members of the population to work or by forcing primary caregivers to go to work

earnings mobility and measurement error a pseudo panel approach the degree of mobility in incomes is often seen as an important measure of the equality of opportunity in a society and of the flexibility and freedom of its labor market but estimation of mobility using panel data is biased by the presence of measurement error and non random attrition from the panel this paper shows that dynamic pseudo panel methods can be used to consistently estimate measures of absolute and conditional mobility in the presence of non classical measurement errors these methods are applied to data on earnings from a mexican quarterly rotating panel absolute mobility in earnings is found to be very low in mexico suggesting that the high level of inequality found in the cross section will persist over time however the paper finds conditional mobility to be high so that households are able to recover quickly from earnings shocks these findings suggest a role for policies which address underlying inequalities in earnings opportunities