realizing the gains from trade export crops marketing costs and poverty this paper explores the role of export costs in the process of poverty reduction in rural africa the authors claim that the marketing costs that emerge when the commercialization of export crops requires intermediaries can lead to lower participation into export cropping and thus to higher poverty they test the model using data from the uganda national household survey the findings show that i farmers living in villages with fewer outlets for sales of agricultural exports are likely to be poorer than farmers residing in marketendowed villages ii market availability leads to increased household participation in export cropping coffee tea cotton fruits and iii households engaged in export cropping are less likely to be poor than subsistence based households the authors conclude that the availability of markets for agricultural export crops helps realize the gains from trade this result uncovers the role of complementary factors that provide market access and reduce marketing costs as key building blocks in the link between the gains from export opportunities and the poor

migrants in a guest worker system a utility maximizing approach this paper examines the behavior of utility maximizing migrants in a system of guest worker migration their pattern of leisure and commodity consumption at home and abroad is analysed and related

employer matching and 401 k saving evidence from the health and retirement study abstract employer matching of employee 401 k contributions is often touted as a powerful incentive to save for retirement and is a key component in pension plan design in the united states using detailed administrative contribution earnings and pension plan data from the health and retirement study this analysis formulates a life cycle consistent econometric specification of 401 k saving and estimates the determinants of saving accounting for non linearities in the household budget set induced by matching the participation estimates indicate that an increase in the match rate by 25 cents per dollar of employee contribution raises 401 k participation by 5 percentage points the parametric and semi parametric estimates for saving indicate that an increase in the match rate by 25 cents per dollar of employee contribution raises 401 k saving by 365 in 1991 dollars overall the analysis reveals that the 401 k saving response to matching is quite inelastic and hence matching is a rather poor policy instrument with which to raise retirement saving

should a carbon tax be differentiated across sectors abstract if some but not all countries are cooperating to reduce co2 emissions one could make the following argument a high carbon tax for carbon intensive tradeable sectors in the cooperating countries will reduce the production of goods from these sectors and therefore co2 emissions in the cooperating countries however this will to a large extent be counteracted by increased production of such goods in the countries that have no climate policy and since it is only total co2 emissions from all countries that are relevant for the climate there is no point in a policy that simply relocates co2 emissions from the cooperating countries to the countries that have no climate policy according to this line of reasoning carbon intensive tradeable sectors should thus face a lower carbon tax than other sectors of the economy this paper shows that a carbon tax should not be differentiated across sectors in the economy provided one can use import and export tariffs on all traded goods it is also shown that such a differentiation of carbon taxes is optimal for the cooperating countries if they are prevented from using tariffs on the traded goods however informational or political factors constraining the use of tariffs are likely also to constrain the possibility of differentiating carbon taxes between sectors

nonparametric estimation of sample selection models sample selection models provide an important way of accounting for economic decisions that combine discrete and continuous choices and of correcting for nonrandom sampling nonparametric estimators for these models are developed in this paper these can be used for estimating shapes and important economic quantities as in standard nonparametnc regression endogeneity of regressors of interest is allowed for series estimators for these models are developed which are useful for imposing additivity restnctions that arise from selection corrections convergence rates and asymptotic normality results are derived an application to returns to schooling among australian young females is given

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

green revolution land reform and household income distribution in the philippines income of agricultural households consists of returns to labor capital and land from farming supplemented mainly by labor earnings from nonfarm sources agricultural technology affects farmers income through its effect on factor demands and factor prices which in turn induce changes in the allocation of farmers own resources to different uses income from farming is also affected by village institutions such as land tenure which governs the distribution of income between landlords and tenants as well as resource allocations

real options approach to inter sectoral migration of u s farm labor the core of the literature on inter sectoral labor migration is based on net present value models of investment in which individuals are assumed to migrate to take advantage of positive wage differentials in this article we argue that a real options approach taken together with the adjustment costs associated with sectoral relocation may provide a basis for explaining the migration of farm labor out of the agricultural sector given the irreversibility of migration decisions and uncertainty in the economy potential migrants might choose to postpone migration even in the face of positive wage differentials using annual u s employment data from between 1948 and 2009 our results indicate that large elasticities between economic incentives and out farm migration are observed after a high threshold of wage differentials between farm and off farm sectors is surpassed

confronting price endogeneity in a duration model of residential subdivision development summary spatial equilibrium implies that distant factors are correlated with local prices through market mechanisms using this logic we develop a novel approach for handling price endogeneity in land use models we combine a control function approach with a duration model to identify the impact of prices in influencing land conversion we find that failure to control for endogeneity results in large differences in elasticities specifically we find an elasticity of 2 06 compared to 0 67 in a model without instrumentation this difference is significant as it suggests that price based policies such as green taxes are likely more effective in altering development patterns than would be expected from a naive estimation that ignores price endogeneity copyright 2016 john wiley sons ltd

agricultural household models extensions applications and policy this book presents the basic model of an agricultural household that underlies most of the case studies undertaken so far the model assumes that households are price takers and is therefore recursive the decisions modeled include those affecting production and the demand for inputs and those affecting consumption and the supply of labor comparative results on selected elasticities are presented for a number of economies the empirical significance of the approach is demonstrated in a comparison of models that treat production and consumption decisions separately and those in which the decisionmaking process is recursive the book summarizes the implications of agricultural pricing policy for the welfare of farm households marketed surplus the demand for nonagricultural goods and services the rural labor market budget revenues and foreign exchange earnings in addition it is shown that the basic model can be extended in order to explore the effects of government policy on crop composition nutritional status health saving and investment and to provide a more comprehensive analysis of the effects on budget revenues and foreign exchange earnings methodological topics primarily the data requirements of the basic model and its extensions along with aggregation market interaction uncertainty and market imperfections are discussed the most important methodological issues the question of the recursive property of these models is also discussed

environmental policy with endogenous plant locations in a game between the governments of two countries each chooses its own environmental policy the nash equilibria of the game are generally not pareto optimal on the one hand each country may want to attract industry giving it an incentive to choose low environmental taxes or standards on the other hand if disutility from pollution is sufficiently high each country might prefer that a firm locates only in other countries this effect tends to make the environmental policy under non cooperation stricter than it would be with cooperation

subjective health assessments and active labor market participation of older men evidence from a semiparametric binary choice model with nonadditive correlated individual specific effects we use panel data from the us health and retirement study 1992 2002 to estimate the effect of self assessed health limitations on active labor market participation of men around retirement age self assessments of health and functioning typically introduce an endogeneity bias when studying the effects of health on labor market participation this results from justification bias reflecting an individual s tendency to provide answers which justify his labor market activity and individual specific heterogeneity in providing subjective evaluations we address both concerns we propose a semiparametric binary choice procedure which incorporates potentially nonadditive correlated individual specific effects our estimation strategy identifies and estimates the average partial effects of health and functioning on labor market participation the results indicate that poor health and functioning play a major role in the labor market exit decisions of older men

competition in regional environmental policies when plant locations are endogenous abstract a two region model is presented in which an imperfectly competitive firm produces a good with increasing returns at the plant level production of the good causes local pollution the firm decides whether to maintain plants in both regions serve both regions from a single plant or shut down if the disutility of pollution is high enough the two regions will compete by increasing their environmental taxes standards until the polluting firm is driven from the market alternatively if the disutility from pollution is not as great the regions will usually compete by undercutting each other s pollution tax rates

interregional labour mobility inequality and wage convergence the objectives of the paper are to examine the determinants of interregional labour migration for german regions using the data on gross flows of labour movements across regions this is one of the few studies where data on labour migration is used there also was a wage convergence after reunification between regions of east and west germany and this to a certain extent provides an explanation for non linear relationship between wage differences among regions and migration as the study distinguishes the blue collar and white collar wage difference between regions different relationships between migration and blue and white collar workers wage differences can be assessed we also test the hypothesis whether highly skilled workers migrate to the regions where inequality is greater while less skilled workers tend to migrate to the regions where inequality is low

efficient climate policy with internationally mobile firms a major concern in the design of an incomplete climate agreement is thatfirms that use fossil fuels intensively may respond to emission regulationsby relocating their plants from cooperating to non cooperating countries this paper analyses how the cooperating countries might deal with the issueof firm delocation through emission taxes trade provisions and alocalisation subsidy to mobile firms it is shown that firms should not beinduced to stay in the cooperating countries by lowering emission taxesbelow the pigouvian tax rate incentives to stay should be given partlythrough trade provisions and partly through a localisation subsidy a secondbest solution without localisation subsidies is also discussed in thatcase the efficient emission tax is lower than the pigouvian tax rate finally the paper discusses the implications of the first best and thesecond best policy regimes for the pattern of firm localisation

dynamic climate policy under firm relocation the implications of phasing out free allowances the allocation of free allowances for firms within the european union emissions trading scheme was found to lead to substantial overcompensation which is why some stakeholders recently called for phasing out of free allowances in the near term this paper analyzes the consequences of phasing out free allowances in a two period model when one country unilaterally implements climate policies a carbon price induces firms to invest in abatement capital but may lead to the relocation of some firms the regulator addresses the relocation problem by offering firms transfers i e free allowances conditional on maintaining the production in the regulating country if transfers are unrestricted in both periods then the regulator implements the first best by equalizing the carbon price with the marginal environmental damage and using transfers to prevent any relocation however if transfers in the future period are restricted the planner optimally implements a declining carbon price path with the first period price exceeding the marginal environmental damage a high carbon price triggers investments in abatement capital and thus creates a lock in effect with a larger abatement capital stock firms are less affected by carbon prices in the future and therefore less prone to relocate in the second period

a global assessment of human capital mobility the role of non oecd destinations discussions of high skilled mobility typically evoke migration patterns from poorer to wealthier countries which ignore movements to and between developing countries this paper presents for the first time a global overview of human capital mobility through bilateral migration stocks by gender and education in 1990 and 2000 and calculation of nuanced brain drain indicators building on newly collated data the paper uses a novel estimation procedure based on a pseudo gravity model then identifies key determinants of international migration and subsequently uses estimated parameters to impute missing data non oecd destinations account for one third of skilled migration while oecd destinations are declining in relative importance

border adjustments supplementing nationally determined carbon pricing as agreed on in the paris agreement each country determines its own contribution to combat climate change on a voluntary basis there is no mechanism to force a country to comply with its own nationally determined contributions this bottom up approach builds on unilateral actions and yields a kind of carbon pricing which is not necessarily identical across countries as a consequence these nationally determined climate policies have drawbacks in terms of carbon leakage and loss of competitiveness for firms producing in high carbon price countries to reduce these negative effects border adjustments bas may be appropriate subsequent to more stringent environmental regulation we model a three stage game involving carbon price competition in the first stage the introduction of bas in the second stage and oligopolistic competition between firms in the third stage strategic trade theory suggests that the qualitative results about the optimal ba policy may vary with the underlying type of competition namely bertrand and cournot competition however our results are similar for both types of competition we conclude that bas are suitable for supporting a more stringent environmental policy moreover we find that anticipation of the implementation of bas in the second stage yields higher average carbon prices in the first stage since high carbon price countries increase their carbon prices whereas the other countries partially offset

women empowerment and economic development women empowerment and economic development are closely related in one direction development alone can play a major role in driving down inequality between men and women in the other direction empowering women may benefit development does this imply that pushing just one of these two levers would set a virtuous circle in motion this paper reviews the literature on both sides of the empowerment development nexus and argues that the interrelationships are probably too weak to be self sustaining and that continuous policy commitment to equality for its own sake may be needed to bring about equality between men and women

labour tax reform the good jobs and the bad jobs we analyse recent proposals to shift the tax burden away from low paid labour assuming a dual labour market where the good high paying jobs are rationed a shift in the tax burden from low paid to high paid workers has an ambiguous effect on the level of aggregate employment while the allocation of aggregate employment is further distorted even if the tax reform raises total employment economic efficiency may be reduced because labour is reallocated from high productive to low productive jobs we also find that opportunities for on the job search have important implications for the policy effects

efficient climate policy in the presence of free riders abstract if all countries participate in a climate agreement policies affecting the supply of fossil fuels have identical economic consequences as policies affecting the demand of fossil fuels this is no longer true when there is limited participation in an international agreement in the paper it is assumed that a group of countries commit themselves to cooperating while the remaining countries act independently and in pure self interest the paper compares supply and demand policies in this context and demonstrates that policies which affect only demand or only supply of carbon generally are inferior to policies affecting both demand and supply of carbon the optimal mix of supply and demand policies is derived in the paper with particular emphasis on carbon taxes an important result is that if the marginal environmental costs of total emissions are sufficiently high in the cooperating countries then both production and consumption of carbon should be taxed at a positive rate if on the other hand the marginal environmental costs of total emissions are sufficiently low it may be optimal to subsidize production or consumption in this case production should be subsidized if the cooperating countries are net importers of carbon while consumption should be subsidized if the cooperating countries are net exporters of carbon another important conclusion of the paper is that the cooperating countries should try to induce the non cooperating countries through appropriate transfers to tax consumption and production of carbon at the same rate as in the cooperating countries

endogenous regressor binary choice models without instruments with an application to migration abstract this paper shows identification of a semiparametric binary choice model containing an endogenous regressor when no outside instrumental variable is available a simple estimator an easy test for endogeneity and an empirical application to us migration data are provided

identification in differentiated products markets using market level data we present new identification results for nonparametric models of differentiated products markets using only market level observables we specify a nonparametric random utility discrete choice model of demand allowing rich preference heterogeneity product market unobservables and endogenous prices our supply model posits nonparametric cost functions allows latent cost shocks and nests a range of standard oligopoly models we consider identification of demand identification of changes in aggregate consumer welfare identification of marginal costs identification of firms marginal cost functions and discrimination between alternative models of firm conduct we explore two complementary approaches the first demonstrates identification under the same nonparametric instrumental variables conditions required for identification of regression models the second treats demand and supply in a system of nonparametric simultaneous equations leading to constructive proofs exploiting exogenous variation in demand shifters and cost shifters we also derive testable restrictions that provide the first general formalization of bresnahan s 1982 intuition for empirically distinguishing between alternative models of oligopoly competition from a practical perspective our results clarify the types of instrumental variables needed with market level data including tradeoffs between functional form and exclusion restrictions

does environmental dumping lead to delocation environmental dumping is often viewed as an instrument used by some countries in the attempt to attract foreign investments stated otherwise the delocation of firms would be a major outcome of a stiff environmental policy in this paper we study the impact of a strict anti pollution policy pursued by a government on domestic firms locational decisions and determine the main variables that interact with such a policy some preliminary welfare implications are also provided

comparing features of convenient estimators for binary choice models with endogenous regressors abstract we discuss the relative advantages and disadvantages of four types of convenient estimators of binary choice models when regressors may be endogenous or mismeasured or when errors are likely to be heteroscedastic for example such models arise when treatment is not randomly assigned and outcomes are binary the estimators we compare are the two stage least squares linear probability model maximum likelihood estimation control function estimators and special regressor methods we specifically focus on models and associated estimators that are easy to implement also for calculating choice probabilities and regressor marginal effects we propose the average index function aif which unlike the average structural function asf is always easy to estimate

interpreting aggregate wage growth the role of labor market participation a new and easily implementable framework for the empirical analysis of the relationship between aggregate and individual wages is developed aggregate real wages are shown to contain three important bias terms one associated with the dispersion of individual wages a second deriving from compositional changes in the selected sample of workers and a third reflecting the distribution of working hours their importance for interpreting the path of aggregate wages and of the returns to education for recent experience in britain is highlighted a close correspondence between the estimated biases and the patterns of differences shown by aggregate wages is established

brain drain and economic growth theory and evidence we focus on the impact of migration prospects on human capital formation and growth in a small open developing economy we assume that agents are heterogeneous in skills and take their educational decisions in a context of uncertainty regarding future migrations we distinguish two growth effects an ex ante brain effect migration prospects foster investments in education because of higher returns abroad and an ex post drain effect because of actual migration flows the case for a beneficial brain drain bbd emerges when the first effect dominates i e when the average level of human capital is higher in the economy opened to migrations than in the closed economy we derive the theoretical conditions required for such a possibility to be observed using cross section data for 37 developing countries we find that the possibility of a bbd could be more than a theoretical curiosity

the effects of a large discrete maize price increase on the distribution of household welfare and poverty in rural kenya1 this study estimates the effects of a large discrete maize price increase on the welfare of a sample of rural kenyan households the usual first order welfare approximation formula is extended to a second order formula that allows for supply and demand responses to the price change results show that many rural households are not affected greatly by the price change and there are about as many gainers as losers however these full sample results mask important differences across regions welfare gains generally take place in major production areas while losses are in areas where most households are net buyers of maize semiparametric methods are used to investigate the relationship between income and the size of the welfare effect and poverty dominance techniques are applied to study the impacts of the maize price increase on rural poverty

should the personal computer be considered a technological revolution evidence from u s metropolitan areas the introduction and diffusion of personal computers are widely viewed as a technological revolution using u s metropolitan area level panel data this paper asks whether links between pc adoption educational attainment and the return to skill conform to a model of technological revolutions in which the speed and extent of adoption are endogenous the model implies that cities will adjust differently to the arrival of a more skill intensive means of production with the returns to skill increasing most where skill is abundant and its return is low we show that the cross city data fit many of the predictions of the model during the period 1980 2000 the pc diffusion era

help or hindrance religion s impact on gender inequality in attitudes and outcomes summary this paper investigates the effect of religiosity on attitudes toward gender equality using world values survey data results indicate that religiosity is strongly correlated with gender inequitable attitudes across countries further ols tsls and 3sls regression estimates reveal that gender inequitable attitudes are associated with negative effects on seven measures of gender equality of well being and public policy no single religion stands out as more gender inequitable than others the impact of religiosity is likely transmitted via stealth effects on everyday behavior in economic transactions in labor markets household resource allocation and government spending

on the efficiency of green trade policy the paper derives conditions for second best environmental policy when there are foreign countries which fail to implement appropriate environmental regulations it is shown that in such cases efficiency in the global economy will not be achieved unless domestic environmental regulations are supplemented by trade provisions the result is independent of whether environmental problems are local or international furthermore when trade provisions are implemented efficiency requires that domestic environmental taxes are fixed at the pigouvian tax rate the results imply that there is an economic rationale for regulating the trade between signatories and non signatories of international environmental agreements efficient trade regulations will either take the form of trade restrictions or trade promotions depending on whether the environmental problem is created by production or consumption activities and whether the net import of the relevant commodity is positive or negative it is argued that an efficient climate agreement signed by a group of fuel importing countries e g the oecd countries should include a subsidy on the import of fossil fuels

can crop purchase programs reduce poverty and improve welfare in rural communities evidence from the food reserve agency in zambia the last decade has seen a resurgence of parastatal crop marketing institutions in sub saharan africa many of which cite improving food security and incomes as key goals however there is limited empirical evidence on the welfare effects of these programs this article considers one such program the zambian food reserve agency fra which purchases maize from smallholder farmers at a pan territorial price that typically exceeds maize market prices in surplus production areas using both fixed effects and an instrumental variables approach combined with correlated random effects we estimate the effects of the fra s maize marketing activities on smallholder farm household welfare results suggest that fra activities have positive direct welfare effects on the small minority of smallholder households that are able to sell to it however the results also suggest negative indirect fra effects as higher levels of fra activity in a district are associated with higher levels of poverty

the effects of banning advertising in junk food markets we develop a structural model to analyze the eects of banning advertising on market equilibria and welfare in junk food markets we consider the impact on demand and prices and show how to quantify welfare eects when advertising might lead consumers to take decisions that are inconsistent with their underlying preferences we use transaction level data on the potato chips market and nd that banning advertising leads to a direct reduction in demand but also toughens price competition leading to lower prices and increased demand welfare increases as consumers benet from no longer making distorted

reversal of migration flows a fresh look at the german reunification we investigate the dynamic effects of interregional labor market integration on migration flows capital formation and the price for housing services the co evolution of these variables depends on initial conditions at the time of labor market integration in an initially capital poor economy there may be a reversal of migration flows during the transition to the steady state while housing costs are increasing over time although capital may accumulate while labor emigrates early in the transition the causal effect of immigration on capital investments and housing costs is positive we present new data on the evolution of net migration flows and rental rates for housing in east germany after 1990 our results are consistent with the presented evidence in the reverse migration scenario

the effects of ncpb marketing policies on maize market prices in kenya the government of kenya pursues maize marketing policy objectives through the national cereals and produce board ncpb which procures and sells maize at administratively determined prices and stores maize as a contingency against future shortages a private sector marketing channel competes with the ncpb this article estimates the effects of ncpb activities on the historical path of private sector prices in kenyan maize markets between 1989 and 2004 the analysis is carried out using a reduced form vector autoregression model var estimated with sparse data and imposing only minimal identification restrictions results show that ncpb activities have stabilized maize market prices in kenya reduced price levels in the early 1990s and raised average price levels by roughly 20 between 1995 and 2004 over the past decade the price raising activities of the ncpb have transferred income from urban consumers and a majority of small scale farm households that are net buyers of maize to a relatively small number of large and small scale farmers who are sellers of maize

unobserved preference heterogeneity in demand using generalized random coefficients we model unobserved preference heterogeneity in demand systems via random barten scales in utility functions these barten scales appear as random coefficients multiplying prices in demand functions consumer demands are nonlinear in prices and may have unknown functional structure we therefore prove identification of generalized random coefficients models defined as nonparametric regressions where each regressor is multiplied by an unobserved random coefficient having an unknown distribution using canadian data we estimate energy demand functions with and without random coefficient barten scales we find that not accounting for this unobserved preference heterogeneity substantially biases estimated consumer surplus costs of an energy tax jel codes c14 d12 d13 c21 keywords unobserved heterogeneity nonseparable errors random utility parameters random coefficients equivalence scales consumer surplus welfare calculations the authors wish to thank jinyong hahn richard blundell stefan hoderlein rosa matzkin and anonymous referees for helpful discussions and suggestions earlier versions of this paper were circulated under the

impacts of subsidized hybrid seed on indicators of economic well being among smallholder maize growers in zambia we test the hypotheses that subsidies on hybrid seed change maize production total household income the severity of poverty and relative deprivation among smallholder maize growers in zambia the analysis contributes to the literature by measuring the quantitative effects of seed as compared to fertilizer subsidies on indicators of household well being rather than input demand we apply a combination of econometric approaches to a nationally representative balanced panel of smallholder maize growing households and invoke the chain rule to generate quantitative estimates of impacts per kilogram of subsidized seed our findings demonstrate that in the initial years of the program subsidized seed enhanced the well being of smallholder maize growers according to each indicator but by small magnitudes simple calculations suggest high private and social benefit cost ratios when benefits are measured in terms of household income although magnitudes are sensitive to seed price and administrative costs

the effects of the food reserve agency on maize market prices in zambia over the last decade governments throughout eastern and southern africa have increasingly used strategic reserves and or marketing boards to influence grain market outcomes yet little is known about how these activities are affecting grain markets this article estimates the effects of the food reserve agency fra on maize market prices in production and consumption regions in zambia using a vector autoregression model and monthly data from july 1996 through december 2008 in recent years fra has become the dominant buyer of smallholder maize in zambia simulations show that fra activities stabilized market prices throughout the july 1996 december 2008 study period and raised mean prices between july 2003 and december 2008 by 17 19 the price raising effects of fra policies have assisted surplus maize producers but adversely affected net buyers of maize in zambia namely urban consumers and the majority of the rural poor the increase in maize price stability is unlikely to have had substantial welfare effects on poor households in contrast relatively wealthy producers are likely to have benefited from the higher average and more stable maize prices resulting from fra policies

firms adoption of international standards evidence from the ethiopian floriculture sector global trade in agriculture and food products is increasingly governed by an array of standards a survey conducted in 2010 covering all operational firms in the nascent floriculture industry in ethiopia revealed that only 36 per cent have managed to acquire certification for international private standards this study uses a census based panel dataset from ethiopian floriculture to empirically examine the determinants of firms adoption of international private standards it also analyses overall industry level efforts and public private partnership to launch and implement a national scheme for good agricultural practice and build firms capacity to comply with the standards key words standards certification floriculture exports estate farms ethiopia africa

alternative approaches to evaluation in empirical microeconomics four alternative but related approaches to empirical evaluation of policy interventions are studied social experiments natural experiments matching methods and instrumental variables in each case the necessary assumptions and the data requirements are considered for estimation of a number of key parameters of interest these key parameters include the average treatment effect the treatment on the treated and the local average treatment effect some issues of implementation and interpretation are discussed drawing on the labour market programme evaluation literature

south south migration and discrimination against women in social institutions a two way relationship summary using the social institutions and gender index sigi from the oecd development centre this paper provides evidence on the two way relationship between discrimination against women in social institutions and south south migration on the one hand discriminatory social institutions in both origin and destination countries are an additional determinant of female migration on the other hand migration implies changes in discrimination against women according to the level of gender inequalities at destination specifically migration toward countries with low levels of discrimination promotes gender equality in social institutions at home while migration toward destinations with high levels of discrimination has the reverse effect

unilateral co2 reductions and carbon leakage the consequences of international trade in oil and basic materials a recursively dynamic general equilibrium model featuring six world regions with trade in energy and non energy goods is used to simulate the period from 1990 through 2100 in 10 year intervals the simulations explore the effect of unilateral action by the oecd to curb global co2 emissions unilateral cuts create incentives for free riding by non participating regions so that global emissions are reduced by less than the amount that the oecd cuts back its regional emissions carbon leakage occurs through two channels first basic materials production increases in unconstrained regions resulting in increased carbon intensity of gdp second reductions in oecd oil imports cause the world oil price to fall leading to an increased energy intensity in the non participant regions in this paper we use a general equilibrium model to assess the extent to which these two mechanisms reduce the effectiveness of oecd reductions in curbing global co2 concentrations

tax design in the alcohol market abstract alcohol consumption generates negative externalities that are non linear in the total amount of alcohol consumed if tastes for products are heterogeneous and correlated with marginal externalities then varying tax rates on different products can lead to welfare gains we study this problem in an optimal tax framework and empirically for the uk market we find that heavy drinkers have systematically different patterns of alcohol demands and welfare gains from optimally varying rates are higher the more concentrated externalities are among heavy drinkers

beyond the endogeneity bias the effect of unmeasured brand characteristics on household level brand choice models we investigate the role of potential weekly brand specific characteristics that influence consumer choices but are unobserved or unmeasurable by the researcher we use an empirical approach based on the estimation methods used for standard random coefficients logit models to account for the presence of such unobserved attributes using household scanner panel data we find evidence that ignoring such time varying latent to the researcher characteristics can lead to two types of problems first consistent with previous literature we find that these unobserved characteristics may lead to biased estimates of the mean price response parameters this argument is based on a form of price endogeneity if marketing managers set prices based on consumer willingness to pay then the observed prices will likely be correlated with the latent to the researcher brand characteristics we resolve this problem by using an instrumental variables procedure our findings suggest that simply ignoring these attributes may also lead to larger estimates of the variance in the heterogeneity distribution of preferences and price sensitivities across households this could overstate the benefits from marketing activities such as household level targeting we resolve the problem by using weekly brand intercepts embedded in a random coefficients brand choice model to control for weekly brand specific characteristics while accounting for household heterogeneity overall our results extend the finding on the endogeneity bias from the mean of the heterogeneity distribution i e the price effect to include the variance of that distribution

human capital investment and migration in an integrated europe the short and longer term regional consequences of migration for european aggregate supply are examined in a simple model in which human capital enters the production function externally the planner chooses a reallocation of population across east and west that cannot be replicated by the market without taxes or subsidies the market solution in this model with free migration is always associated with an efficiency loss and might lead to the mezzogiorno syndrome in the east excerpt

pairwise difference estimation with nonparametric control variables this paper extends the pairwise difference estimators for various semilinear limited dependent variable models proposed by honore and powell 2005 to permit the regressor appearing in the nonparametric component to itself depend upon a conditional expectation that is nonparametrically estimated this permits the estimation approach to be applied to nonlinear models with sample selectivity and or endogeneity in which a control variable for selectivity or endogeneity is nonparametrically estimated we develop the relevant asymptotic theory for the proposed estimators and we illustrate the theory to derive the asymptotic distribution of the estimator for the partially linear logit model

how different are the british in their willingness to move evidence from international social survey data drinkwater s and ingram p how different are the british in their willingness to move evidence from international social survey data regional studies this paper analyses people s willingness to move using data from the 1995 british social attitudes survey and international social survey programme the personal characteristics and sub regional indicators that are important in explaining the willingness to move within britain are identified it is also found that the willingness to move is only higher in a few other countries including the usa the equivalent desire to move is found to be much lower in eastern european countries and in several other european union member states compositional effects such as age and education are generally important in explaining differences in attitudes towards migration in comparison with other western economies however structural effects such as institutions history and culture tend to play a more dominant role in explaining differences compared with countries

measuring market integration and estimating policy impacts on the swiss electricity market abstract we investigate market integration in central western european electricity markets with a focus on switzerland we propose a structural microeconometric approach to measuring the degree of market integration taking advantage of unilateral demand and supply shocks such as the generation from volatile renewable resources the unavailability of generation units and national holidays these exogenous events affect electricity prices in switzerland and allow estimating the level of market integration by disentangling their effects in congested and non congested situations exploiting information on congested and non congested situations in parametric instrumental variable estimation permits simulating hypothetical non congested swiss electricity prices in historically congested situations our approach allows considering the non linear nature of level shifts of congestion and disentangling it from the structurally different interplay of demand and supply in respective situations using data on hourly electricity prices and its determinants regarding switzerland and neighboring countries from 2015 and 2016 we find that an expansion of interconnector capacity at the german austrian swiss border could decrease swiss electricity prices substantially in a more attenuated way the same holds true for the french swiss and the italian swiss border for switzerland as a whole prices in congested situations are about 17 higher than hypothetical non congested prices

the determinants of east west german migration some first results determinants of the propensity to migrate are explored using data collected in a survey of east german residents following german reunification in 1991 the author notes that in the period 1989 1992 some 870000 individuals migrated to west germany representing about 5 of the total east german population and 10 of the work force he suggests that recent developments in the literature on the option value of waiting may yield important insights into these determinants excerpt

immigrant selectivity and wages the evidence for women in an effort to extend the analysis of selectivity to female immigrants this paper examines the impact of economic conditions at the time of migration on the subsequent wages of foreign born women in the united states in addition the variables chosen to describe the migration decision have been expanded to include the effects of household status and immigration policy these results are compared to previous results for men and provide additional evidence about how the context of the migration decision affects the subsequent success of immigrants in the united states the sample for this project comes from the april 1983 current population survey and consists of married native and foreign born women between the ages of 16 and 64 excerpt

technology diffusion outcome variability and social learning evidence from a field experiment in kenya this article explores the mechanisms through which social learning mediates technology diffusion we exploit an experiment on the dissemination of biochar a soil amendment that can improve fertility on weathered and or degraded soils we find that social networks transmit information about the average benefits of adoption but also its risk and that observed variability inhibits uptake to a greater degree than positive average results engender it paradoxically this relationship is stronger among networks that do not discuss farming but disappears among farmer networks that do this is resolved with a simple model of social learning about conditional rather than unconditional benefit distributions as farmers observe factors associated with outcomes in their networks they constrain the distribution of their own potential outcomes this conditional distribution diverges from the unconditional distribution that the econometrician observes we conclude that social learning is characterized by implicit model building by sophisticated decision makers rather than simple herding towards observed good results

relative deprivation and migration preferences in this letter we overcome the existing shortages with respect to the assignment of individuals to reference groups and are the first to show that individual aversion to relative deprivation plays a decisive role in shaping migration preferences

estimation in a class of simultaneous equation limited dependent variable models estimation in a class of simultaneous equation limited dependent variable models is considered the minimum chi squared method is used to compare the asymptotic relative efficiency of marginal and new conditional maximum likelihood estimators for this class of models efficient minimum chi squared estimation procedures are described a two step algorithm based on a conditional maximum likelihood estimator provides a natural framework for both computing a linearized and locating the joint maximum likelihood estimator the unimodality of the simultaneous equation tobit likelihood function is proved and this model is used to illustrate the empirical application of some of the estimators considered in the paper the relative efficiency of these estimators in the simultaneous equation tobit model is examined in a set of monte carlo experiments many applications of microeconomic theory to individual data face the joint problems of censoring and simultaneity in particular the dependent variable under investigation may not be continuously observed and some of the conditioning variables representing the outcome of other decisions by the individual may be simultaneously determined smith and blundell 1986 developed an asymptotically efficient test for exogeneity or simultaneity in the simultaneous equation tobit model as a byproduct a conditional maximum likelihood estimator was obtained which is consistent under the alternative hypothesis of simultaneity nelson and olsen 1978 amemiya 1978 1979 and heckman 1978 consider a number of consistent marginal maximum likelihood estimators based on marginal maximum likelihood estimators of the reduced form parameters for the probit and tobit models in contrast the estimator derived from smith and blundell 1986 is based on the corresponding conditional maximum likelihood estimators this paper is concerned with estimation in a class of simultaneous limited dependent variable regression models which includes the simultaneous probit and tobit models as special cases analogous marginal and conditional maximum likelihood estimators to those of nelson and olsen 1978 amemiya 1978 1979 heckman 1978 and smith and blundell 1986 are derived and other new estimators are suggested the minimum chi squared approach discussed by ferguson 1958 malinvaud 1970 and rothenberg 1973 is used to compare the asymptotic relative efficiency of various estimators considered a simple two step algorithm based on the conditional maximum likelihood

endogeneity in semiparametric binary response models this paper develops and implements semiparametric methods for estimating binary response binary choice models with continuous endogenous regressors it extends existing results on semiparametric estimation in single index binary response models to the case of endogenous regressors it develops a control function approach to account for endogeneity in triangular and fully simulataneous binary response models the proposed estimation method is applied to estimate the income effect in a labor market participation problem using a large micro data set from the british fes the semiparametric estimator is found to perform well detecting a significant attenuation bias the proposed estimator is contrasted to the corresponding probit and linear probability specifications jel c14 c25 c35 j22

the integration of child tax credits and welfare evidence from the national child benefit program abstract in 1998 the canadian government introduced a new child tax credit the innovation in the program was its integration with social assistance welfare some provinces agreed to subtract the new federally paid benefits from provincially paid social assistance partially lowering the welfare wall other provinces did not integrate benefits providing a quasi experimental framework for estimation we find large changes in social assistance take up and employment in provinces that provided the labour market incentives to do so in our sample the integration of benefits can account for between 19 and 27 of the decline in social assistance receipt between 1997 and 2000

a control function approach to endogeneity in consumer choice models abstract endogeneity arises for numerous reasons in models of consumer choice it leads to inconsistency with standard estimation methods that maintain independence between the model s error and the included variables the authors describe a control function approach for handling endogeneity in choice models observed variables and economic theory are used to derive controls for the dependence between the endogenous variable and the demand error the theory points to the relationships that contain information on the unobserved demand factor such as the pricing equation and the advertising equation the authors approach is an alternative to berry levinsohn and pakes s 1995 product market controls for unobserved quality the authors apply both methods to examine households choices among television options including basic and premium cable packages in which unobserved attributes such as quality of programming are expected to be correlated with price without correcting for endogeneity aggregate d

environmental policy when market structure and plant locations are endogenous abstract a two region two firm model is developed in which firms choose the number and the regional locations of their plants both firms pollute and market structure is endogenous to environmental policy there are increasing returns at the plant level imperfect competition between the home and the foreign firm and transport costs between the two markets at critical levels of environmental policy variables small policy changes cause large discrete jumps in a region s pollution and welfare as a firm closes or opens a plant or shifts production to from a foreign branch plant the implications for optimal environmental policy differ significantly from those suggested by traditional pigouvian marginal analysis

endogeneity and individual consumer choice abstract in many markets there is likely to be correlation both across periods in terms of the choices of one consumer and across consumers in terms of their choices in each period the former is caused by consumer heterogeneity and the latter may be the result of demand common shocks across consumers furthermore if firms partially observe these common shocks their market decisions may end up being endogenous and correlated with the common shocks because researchers cannot typically fully observe consumer heterogeneity and the common shocks the estimation method must account for the endogeneity of firms decisions in this article the authors present a test for endogeneity under unobserved consumer heterogeneity and common shocks which is based on a quasi likelihood estimation method to estimate the model parameters consistently when endogenous firm behavior unobserved heterogeneity and common shocks are present the test examines the differences in general method of moments coefficient estima

nonparametric continuous discrete choice models modeling choices that are both discrete and continuous is important in several settings the purpose of this article is to explore formulation and identification of such models when indirect utility functions are specified nonparametrically here we consider general nonseparable disturbances we give identification results for nonseparable sample selection models and use these to analyze identification of discrete continuous choice models

if i leave here tomorrow an option view of migration when labor market quality declines in this article we provide a framework for determining when it is optimal to move when labor market opportunities are declining we model the decision to migrate as akin to owning a financial option in which the exercise price is the fixed cost of moving we show that a higher fixed cost associated with moving and a higher standard deviation of the quality of the labor market reduce the incentive to migrate we then empirically examine whether the standard deviation of indicators of labor market quality reduce the likelihood of migration our findings strongly support this hypothesis and imply that for the relatively mobile population of high skilled workers the counterfactual outmigration rates that would obtain if future labor market quality were known with certainty are more than twice observed rates

the effects of price risk on housing demand empirical evidence from u s markets this article examines how price risk affects housing demand it identifies two relevant channels a financial risk effect that reduces demand and a hedging effect that increases demand since current homes may hedge future housing costs the latter dominates when hedging incentives are strong namely when the likelihood of moving up the housing ladder is high and the tendency to move across markets is low for households with weak hedging incentives the article finds negative effects of price risk on the timing and size of home purchases but positive effects for households with strong hedging incentives

the caring hand that cripples the east german labor market after reunification abstract the caring hand that cripples the east german labour market after reunification the east german labour market has hardly made any progress since german reunification despite massive migration flows and support from the west we argue that east germany is in trouble precisely because of the support it has received this paper explores the phenomenon of the caring hand that cripples arising from bargaining by proxy the adoption of the west german welfare system and the associated employment persistence even the steady decrease of labour cost normalized by productivity since the beginning of the 1990s did not help to kick start the east we suggest that labour force participants fell into traps concerning low skills ageing of the workforce labour saving capital and skills capital underutilization and unemployment arising from the decline of the tradeable sector jel classification e24 j3 and p2 keywords german unification labour market traps and labour markets dennis j snower kiel institute for the world economy dusternbrooker weg 120 24105 kiel germany tel 49 431 8814 235 fax 49 431 8814 501 email dennis snower ifw kiel de

exploitative briefcase businessmen parasites and other myths and legends assembly traders and the performance of maize markets in eastern and southern africa summary small scale assemblers are both the most vilified and least understood actors in food value chains in sub saharan africa drawing on data from kenya zambia malawi and mozambique this article explores how maize assemblers influence the market access conditions of small scale farmers assembly markets for maize are found to be highly competitive in terms of the number of traders operating and marketing margins farmers market access conditions in remote areas are particularly improved by the operation of assembly traders direct state operations in markets have sometimes unintentionally exacerbated market access conditions for farmers through their effects on rural assembly markets while smallholder farmers face important marketing challenges the brightest prospects for effectively addressing them require greater support for the development of competitive assembly markets rather than supplanting them

an exogeneity test for a simultaneous equation tobit model with an application to labor supply a test of weak exogeneity in the simultaneous equation tobit model is proposed and illustrated using a female labour supply model estimated using cross section data the test statistic can be simply output from any standard tobit maximum likelihood package and is asymptotically efficient the procedure provides consistent estimators for the simultaneous tobit model whose asymptotic covariance matrix is a simple extension of the usual tobit formula we also provide the lagrange multiplier test of weak exogeneity this abstract was borrowed from another version of this item

out migration wealth constraints and the quality of local amenities the relation between income and migration intentions can be monotonically decreasing increasing or inverse u shaped dependent on the level of migration cost relative to wealth and if individuals are credit constrained using unique individual level data covering countries in three geographic regions sub saharan africa asia and latin america we show that migration intentions respond to individual wealth and that the pattern differs across the country groups studied in a manner compatible with the predictions of our simple model we also show that contentment with various dimensions of local amenities such as public services and security are key determinants of migration intentions

female migration a way out of discrimination abstract in light of the recent feminization of migration we empirically explore to what extent worldwide female migration can be explained by perceived gender discrimination making use of unique individual level data we track women s intention and preparation to migrate from 148 countries between 2009 2013 and disentangle how individual perceptions of gender discrimination can foster or impede female migration across countries we perform extensive robustness checks to mitigate concerns about potential threats to identification posed by measurement error and unobservables our evidence indicates that women who do not feel treated with respect and dignity have a higher incentive to migrate abroad the likelihood that these migration intentions are turned into actual preparations however depends on more traditional determinants such as household income network effects and family obligations furthermore we also show that more intense gender imbalances in economic and political opportunities prevent women from actually moving abroad