nonparametric and parametric analysis of calorie consumption in tanzania abstract the empirical literature on the demand for calories in developing countries suggests mixed results regarding the role of income and other socioeconomic characteristics on calorie demand this study employs both nonparametric and parametric methods to examine the impact of household expenditure and other socioeconomic variables on household demand for calories in tanzania using recent survey data the parametric methods include estimation strategies that ensure consistent estimates in the presence of behavioral endogeneity and measurement error under each estimation strategy we employ we find a strongly significant and positive relationship between household expenditure and calorie demand lending support to conventional wisdom that income growth can alleviate inadequate calorie intake the results also show a negative and significant relationship between food prices and calorie demand suggesting that effectively targeted food subsidies for very poor households may play a role in improving their calorie intake

quasi and simulated likelihood approaches to censored demand systems food consumption by food stamp recipients in the united states a quasi maximum likelihood estimator is proposed and applied to a censored translog demand system for foods using a sample of food stamp recipients in the united states the procedure produces remarkably close parameter and elasticity estimates to those of the simulated maximum likelihood procedure a two step procedure is also considered but it produces different elasticities demands are found to be price elastic for pork and fish but price inelastic for all other food products gross complementarity and net substitutability are obvious but these cross price effects are much less pronounced than own price and total food expenditure effects copyright 2003 oxford university press

family and community networks in mexico u s migration a household s decision to send migrants is based on infornation it has on the entry costs expected returns and risks of migration information and assistance flow from both family migrant networks and community migrant networks using data from a national survey of rural mexican households we show the importance of networks in both the decision to migrate and the level of migration we find that community and family networks are substitutes in assisting migration suggesting that once migration is well established in a community family networks become less important in addition the development of strong community networks erases the role of household characteristics in migration allowing those initially least favored to also participate in migration finally we show that network density at points of destination in the united states strongly affects where individuals choose to migrate

labor market performance as a determinant of migration in a comparison of migrants with nonmigrants both observed and unobservable productivity factors are relevant this paper focuses more on the unobservable factors and their correlation between places of origin and destination a human capital model of migration demonstrates that more productive workers at the origin would choose to migrate only if the correlation between origin and destination factors is strongly positive longitudinal data drawn from the cote d ivoire living standards survey 1985 86 are used to examine the pattern of migration in the light of labor market performance both of wage employees and non farm self employed workers it is found that indeed the more productive workers migrate furthermore the general direction of migration is toward cities the conclusion is therefore that rural areas lose their productive workers and that urban areas may gain in productivity from the geographical shifts in population

incentive effects of the u s welfare system a review the author would like to acknowledge support for prior work on this topic from the u s department of health and human services and helpful comments from three anonymous referees rebecca blank howard chernick john fitzgerald irwin garfinkel peter gottschalk edward gramlich david greenberg judith gueron james heckman v joseph hotz robert hutchens michael keane frank levy larry mead michael murray robert plotnick anuradha rangarajan philip robins howard rolston jeffrey smith and daniel weinberg all opinions and errors are those of the author alone

remittances and household wealth after conflict a case study on urban burundi few studies have researched the use of remittances in conflict affected contexts this study analyzes unique data from burundi testing three hypotheses relative deprivation investment and insurance derived from new economics of labor migration studies employing propensity score matching results show that remittances are common among wealthier households rejecting the relative deprivation hypothesis remittances have strong effects on non productive assets such as living conditions and food security and weak effects on productive assets such as asset ownership poorer households invest mostly in non productive assets suggesting that remittances are insurance for the poor whereas wealthier households seem largely unaffected by remittances

the macroeconomic effects of fiscal policy we investigate the macroeconomic effects of fiscal policy using a bayesian structural vector autoregression b svar approach we identify fiscal policy shocks via a partial identification scheme but also i include the feedback from government debt ii look at the impact on the composition of output iii assess the effects on asset markets iv use quarterly data and v analyse empirical evidence from the us the uk germany and italy the results show that government spending shocks in general have a small effect on gross domestic product gdp lead to important crowding out effects have a varied impact on housing prices and generate a quick fall in stock prices government revenue shocks generate a mixed effect on housing prices and a small and positive effect on stock prices the empirical evidence also suggests that it is important to explicitly consider the government debt dynamics in the model

a cross section analysis of household demand for food and nutrients in tanzania abstract undernutrition and malnutrition are still problems of unacceptable proportions in many developing countries however the debate on the roles of income and other socio economic variables such as women s education and household size on food and nutrient demand continues this study examines the demand for food and nutrients amongst households in tanzania using recent survey data a quadratic almost ideal demand system quaids is employed to estimate price and expenditure elasticities as well as the impact of socio economic variables on food demand patterns a moment based instrumental variable approach is then used to analyse the determinants of nutrient demand the results show that income and other socio economic variables exert significant effects on the demand for food and nutrients the estimated expenditure elasticities for the nutrients range from 0 307 for iron to 1 26 for vitamin b12 the elasticities are higher for those micronutrients that are consumed through animal products and lower for those micronutrients that are mainly obtained through staple foods these results reflect the higher expenditure elasticities for meat fish eggs milk and milk products as well as fruits and vegetables relative to cereals and pulses reinforcing the assertion that the demand for vitamins a and b12 as well as calcium and zinc will increase with rising income

staying for benefits the effect of a health and family planning program on out migration patterns in bangladesh there is concern that benefit programs may alter out migration patterns we exploit the quasi random placement of a health and family planning program in bangladesh to examine changes in out migration patterns using individual level migration data from 1979 91 we find that the flow of out migration was approximately 15 percent lower for women and men in the treatment versus comparison area we find comparable changes in out migrant stock showing that effects persisted even after allowing for return migration our findings suggest that benefit programs can lead to longer run changes in population with consequences for program evaluation design and economic development

economic effects of migration on the left behind in cambodia abstractusing propensity score matching this study examines the effects of migration on various indicators of household wellbeing in cambodia the results indicate that migration would reduce poverty headcount rate by 3 7 percentage points and decrease the depth of poverty migration is also found to reduce by 5 10 per cent the hours worked by members left behind the impact of migration on labour participation may be however vulnerable to unobservable factors nevertheless the study suggests that important heterogeneous effects which differ from the average impact exist the analysis is conducted separately by internal and international migration

importing the poor welfare magnetism and cross border welfare migration i test for welfare induced migration by comparing afdc participation in border counties to interior counties in the same state if migration costs are lower for border county residents border counties on the high benefit side of a state border should have higher welfare participation relative to the state s interior counties border counties on the low benefit side should have lower welfare participation relative to the state s interior counties the results obtained using county level data from 1970 90 indicate that having a neighbor with benefits that are 100 lower increases afdc expenditures in border counties by 4 0 6 8 percent relative to interior counties

household food demand in turkey a two step demand system approach abstract demands for sixteen food products are investigated using data from the turkish household expenditure survey the linear approximate almost ideal demand system laids is estimated with shonkwiler and yen s two step procedure all own price elasticities are negative and expenditure elasticities positive bread other cereals bovine mutton giblets and cheese have high expenditure elasticities mutton bovine and several other protein rich products are price elastic results suggest a mix of gross substitutes and complements while net substitution is the dominant pattern demographic characteristics also play important roles in shaping food demand the elasticity estimates can inform policy deliberations

the effects of public spending shocks on trade balances and budget deficits in the european union we investigate the consequences of an increase in public spending for trade balances and budget deficits in the european union using a panel var approach whereas the literature tends to treat the trade balance gdp ratio as a single variable we include exports and imports as separate variables this allows us to track in more detail the sources of trade balance movements further we use annual rather than quarterly data this facilitates the interpretation of the shocks and reduces potential anticipation effects of fiscal policy changes however the identification assumptions become stronger and we extensively check their validity according to our baseline estimate a 1 gdp increase in public spending produces a 1 2 on impact with a 1 6 peak rise in gdp rising imports and falling exports are responsible for a fall of the trade balance by 0 5 of gdp on impact and a peak fall of 0 8 in addition the spending increase produces a 0 7 impact and peak budget deficit thereby pointing to the potential relevance of the twin deficits hypothesis for the european union jel e62 h60

the new economics of labor migration this paper reviews selected theoretical and empirical developments in the field of labor migration economics the migration behavior of individuals differs in accordance with their perceived relative deprivation those who are relatively more deprived tend to have stronger incentive to migrate than those who are relatively less deprived moreover a reference group characterized by more income inequality is likely to generate more relative deprivation highly skilled workers are also more likely to migrate migration decisions are often made jointly by the migrant and nonmigrant with a contractual arrangement regarding the sharing of costs and returns the exchange of commitments to share income provides coinsurance of particular interest are the determinants of the speed of adoption of migration as an innovation and the characteristics associated with the delay in the adoption of innovation new econometric techniques including techniques for the analysis of qualitative dependent variables techniques that correct for sample selection bias and those for the analysis of longitudinal data have substantially benefited empirical research in this area new methods that can correct for the biased estimate of the wages particular individuals would receive at 2 or more locations at the same point in time allow researchers to test locational decsion making models estimates of these structural models of labor migration support the hypothesis that individuals respond to income incentives in making the decsion to migrate further research is needed on the pazzling observation that migrant workers earn less than native born workers with similar characteristics during the 1st few years after migration but more thereafter other topics that need further research include the macroeconomic effects of migration the microeconomic and macroeconomic relationships between aging and labor migration and the migration behavior of dual earner families

on migration and risk in ldcs the authors develop the hypothesis that aversion to risk rather than expectations of higher income is the primary motivation for rural urban migration in developing countries this hypothesis maintains that an optimizing risk averse small farmer family will try to place a family member in the urban sector in order to diversify its income portfolio an additional hypothesis related to risk is also considered at the individual rather than the family level annotation

output the stock market and interest rates this paper develops a simple model of the determination of output the stock market and the term structure of interest rates the model is an extension of the is lm model and borrows from it the assumption that output is determined by aggregate demand and that the price level can only adjust over time to its equilibrium value however whereas the is lm emphasizes the interaction between the interest rate and output this model emphasizes the interaction between asset values and output asset values rather than the interest rate are the main determinants of aggregate demand and output current and anticipated output and income are in turn the main determinants of asset values it is this interaction that the model intends to capture its goal is to characterize the joint response of asset values and output to changes in the environment such as changes or announcement of changes in monetary and fiscal policy as the above brief description makes clear anticipations are central to the story the assumption made in this paper will be one of rational expectations the paper is organized as follows section i describes the model and sections ii iv characterize the behavior of the economy under the extreme but convenient assumption that prices are fixed forever sections v and vi extend the analysis to the case where prices adjust over time to their equilibrium value

what are the effects of fiscal policy shocks we propose and apply a new approach for analyzing the effects of fiscal policy using vector autoregressions specifically we use sign restrictions to identify a government revenue shock as well as a government spending shock while controlling for a generic business cycle shock and a monetary policy shock we explicitly allow for the possibility of announcement effects i e that a current fiscal policy shock changes fiscal policy variables in the future but not at present we construct the impulse responses to three linear combinations of these fiscal shocks corresponding to the three scenarios of deficit spending deficit financed tax cuts and a balanced budget spending expansion we apply the method to us quarterly data from 1955 to 2000 we find that deficit financed tax cuts work best among these three scenarios to improve gdp with a maximal present value multiplier of five dollars of total additional gdp per each dollar of the total cut in government revenue 5 years after the shock copyright 2009 john wiley sons ltd

a fresh look at fiscal multipliers one size fits it all evidence from the mediterranean area following the adoption of important fiscal stimuli to fight the recent crisis a large literature estimated fiscal multipliers focusing on an area particularly appealing given its diversity and the diversity of the response of countries that compose it to the current crisis namely the mediterranean area we unveil major disparities regarding the significance sign and size of fiscal multipliers depending mainly on the economic characteristics the type of multiplier the time span and the type of fiscal stimulus evidence of such important heterogeneities highlights the need for better cooperation among countries particularly regarding the design of fiscal policy failing to do so might divert public resources to ineffective fiscal policies in some countries or on the contrary deprive other countries of potentially high benefits of appropriate fiscal policies including a reliable tool for exiting the current crisis

variation in the fiscal multiplier with the method of financing evidence across industrial countries government spending has often varied with the business cycle to stimulate the economy and to revive economic conditions however the state of public finances has often necessitated higher borrowing to finance widening fiscal deficits indeed recent austerity packages around the globe have crystalized the importance of fiscal consolidation against the backdrop of rising public debt to shed light on recent debates regarding fiscal multipliers the article estimates variation in these multipliers with the method of financing using annual data for a sample of industrial countries there is a large variation in the effects of expansionary and contractinary government spending shocks on economic variables within and across countries the significant effects of negative government spending shocks fiscal contraction appear more prevalent than those of expansionary shocks on real output growth price inflation and nominal wage inflation consistent with theory s predictions the fiscal multiplier is more lik

migration the life cycle and state benefits how low is the bottom i show that among women likely to use welfare movers move to higher benefit states i also find that the probability likely welfare users will move at all is lower in higher benefit states this effect is concentrated early in the life cycle as theory predicts i construct a theoretical framework to measure the impact of welfare migration on optimal state benefits simulation results suggest little impact in higher benefit states but possibly a more substantial impact in other states finally evidence suggests little reason for concern due to welfare migration in using cross state variation in welfare generosity to identify incentive effects of the welfare system on other outcome variables

rice demand in tanzania an empirical analysis we investigate the consumer side of the tanzania rice market with the primary objective of estimating price elasticities of imported and domestically produced rice previous studies of the rice market in tanzania claim that domestic rice is implicitly protected by consumer preference of its perceived better quality however rice producers increasingly complain that imported rice adversely impacts the price of domestic rice using household consumer survey data we estimate price and expenditure elasticities of imported rice domestic rice and maize to assess their substitutability in the tanzanian diet our results show that tanzanian consumers have a preference for domestic rice varieties with weak substitutability between domestic and imported rice varieties

a sample selection approach to censored demand systems the multivariate sample selection model is extended to a nonlinear equation system with partial selection and applied to household meat consumption in china elasticity estimates differ from those obtained from conventional maximum likelihood and tobit estimates chinese meat products are gross complements while net substitution also exists in some cases the use of micro survey data has been popular in estimating consumer demand equations important features of microdata include censored dependent variables estimation procedures for censored consumer demand systems include the primal kuhn tucker approach of wales and woodland 1983 dual virtualprice approach of lee and pitt 1986 and the tobit system amemiya 1974 estimated by generalized maximum entropy golan perloff and shen 2001 and maximum simulated likelihood dong gould and kaiser 2004 yen lin and smallwood 2003 procedures less efficient alternatives include the quasi maximum likelihood estimator yen lin and smallwood 2003 the generalized method of moments estimator meyerhoefer ranney and sahn 2005 and a number of two step estimators heien and wessells 1990 perali and chavas 2000 shonkwiler and yen 1999 yen 2005 recently proposed a maximum likelihood ml procedure for the multivariate sample selection model mssm an extension of the bivariate sample selection model heckman 1979 which had motivated the procedures of heien and wessells 1990 and shonkwiler and yen 1999 the mssm was developed in the context of linear equations and in addition is not strictly applicable for a partially selective equation system viz

fiscal multipliers in the eurozone an svar analysis we compute the value of fiscal multipliers for government primary expenditure income and wealth taxes and for production and import taxes in the eurozone countries since the creation of the curr

semiparametric estimation of consumer demand systems with micro data maximum likelihood and two step estimators of censored demand systems yield biased and inconsistent parameter estimates when the assumed joint distribution of disturbances is incorrect this paper proposes a semiparametric estimator that retains the computational advantage of the two step approach but is immune to distributional misspecification the key difference between the proposed estimator and the two step estimator is that the parameters of the binary censoring equations are estimated using a distribution free single index model we implement the proposed estimator using household level data obtained from the hainan province in china specification test lends support to our approach

land retirement and nonfarm labor market participation an analysis of china s sloping land conversion program summary china s sloping land conversion program pays more than 32 million households to plant trees on highly erodible cropland and has effected major land use changes farmers retire land indefinitely but receive time limited subsidies after which they in principle enter nonfarm employment we analyze annual data we collected on over 3 000 individuals and plots from 1998 2006 which contain variation in enrollment timing and alternative measures of enrollment and conclude enrollment has a small but significant and robust positive effect on nonfarm employment it arises not from alleviating constraints as recent papers have suggested but rather from simple farm to nonfarm labor substitution

an error corrected almost ideal demand system for major cereals in kenya despite significant progress in theory and empirical methods the analysis of food consumption patterns in developing countries particularly those in sub saharan africa ssa has received very limited attention an attempt is made in this article to estimate an error corrected almost ideal demand system for four major cereals consumed in kenya employing annual data from 1963 to 2005 this demand system performs well on both theoretical and empirical grounds the symmetry and homogeneity conditions are supported by the data and the le chatelier principle holds empirically all own price elasticities are negative and significant at 5 level and irrespective of the time horizon maize wheat rice and sorghum may be considered as necessities in kenya while the expenditure elasticities of all four cereals are positive they are inelastic both in the short run and in the long run finally wheat and rice complement maize consumption in kenya while sorghum acts as a substitute since cereal consumers have price and income inelastic responses a combination of income and price oriented policies could improve cereal consumption in kenya

the effects of discretionary fiscal policy on macroeconomic aggregates a reappraisal fiscal stimuli to recover a cascade of academic and layman articles debate the effectiveness of fiscal policy in stimulating the economy backed up by different economic models and empirical support this essay surveys the theoretical predictions and recent empirical vector autoregression var evidence on the short run effects of discretionary fiscal policy on macroeconomic aggregates

defying the law of gravity the political economy of international migration bilateral flows of international migrants exhibit tremendous variance both across destination countries and over time to explain this variance studies of international migration tend to focus on economic determinants such as income differentials or on social conditions such as the presence of coethnics in certain destination countries the authors argue that migration is driven not solely by economic or social determinants rather the political environment across destinations plays a substantively large role in influencing bilateral migration flows they test the importance of the political environment citizenship rights and the prominence of right wing parties using data on migration flows from 178 origin countries into 18 destination countries over the period 1980 2006 they find even after controlling for a variety of economic social policy and international variables that variation in political environments across time and destination plays a key role in observed patterns of international migration

welfare induced migration at state borders new evidence from micro data abstract this paper extends and synthesizes the various approaches used in the recent welfare migration literature to both offer the most comprehensive set of tests to date for welfare migration and to also determine the relative importance of short distance moves in welfare migration flows the current study follows on the finding of mckinnish mckinnish t importing the poor welfare magnetism and cross border welfare migration journal of human resources 2005 40 57 76 of welfare migration effects obtained by comparing welfare participation at state borders to state interiors this identification strategy is extended to micro data from the 1980 and 1990 decennial censuses and combined with the demographic comparisons used elsewhere in the welfare migration literature the signs and patterns of the estimates are consistent with the presence of welfare migration effects and the magnitudes of the estimates are consistent with the importance of short distance moves in welfare induced migration flows but most of the estimates are not statistically significant