some evidence on herding behavior of u s banks the authors examine the international lending decisions of u s commercial banks of different sizes from 1977 to 1982 for evidence ofthe ex istence of herding behavior granger sims causality tests for the loans gran ted by the top nine the next fifteen and the remaining u s banks provide no c lear evidence of herding between the top nine and the next fifteen banks there is however evidence that the remaining banks mostly small ones herded behind the top twenty four banks overall the analysis presented here points to a very weak herding behavior copyright 1987 by ohio state university press

strategic amnesty and credible immigration reform why do countries that impose employer sanctions to deter the illegal entry of foreign workers nevertheless grant amnesty to illegal immigrants in this article i provide a positive theory of amnesty provision in a model where the constrained optimal immigration reform involving the joint use of employer sanctions and border interdictions is time inconsistent in particular my framework demonstrates that host countries of immigration can enhance the credibility of their immigration reforms by binding their own hands and strategically granting a socially excessive amount of amnesty to illegal workers

optimal capital income taxation with incomplete markets borrowing constraints and constant discounting for a wide class of infinitely lived agent models chamley has shown that the optimal capital income tax rate is zero in the long run lucas has argued that for the u s economy there is a significant welfare gain from switching to this policy this paper shows that for the bewley class of models with incomplete insurance markets and borrowing constraints the optimal tax rate on capital income is positive even in the long run therefore cutting the capital income tax to zero may well lead to welfare losses

the risky steady state we propose a simple quantitative method to linearize around the risky steady state of a small open economy unlike when the deterministic steady state is used the net foreign asset position is well defined we allow for stochastic income and stochastic interest rate

food aid pitfalls and potential abstract in this article the author asks if it is possible to use food aid so that it meets short run needs while supporting and not undermining the achievement of long term goals of self reliance at household and national level the pitfalls and possibilities to elucidate methods of achieving this are explored after looking at the specific effects on nutrition and incentives to local agriculture it is concluded that most objectives are better achieved by the use of cash rather than food aid

liquid capital and market liquidity this article considers how the supply of liquid capital affects the liquidity of asset markets the article views the former notion as a technological property of real investments and the latter as an endogenous property of financial market equilibrium and describes a channel by which the two are linked when agents hold more wealth in technologically liquid investments a marginal adjustment to portfolio holdings alters discount rates less causing a smaller price impact thus even without intermediaries or frictions the stock of transformable capital may be a crucial determinant of the resilience of financial markets

transfers in cash and in kind theory meets the data we review theoretical explanations for in kind transfers in light of the limited empirical evidence after reviewing the traditional paternalistic arguments we consider explanations based on imperfect information and self targeting we then discuss the large literature on in kind programs as a way of improving the efficiency of the tax system and a range of other possible explanations including the samaritan s dilemma pecuniary effects credit constraints asymmetric information amongst agents and political economy considerations our reading of the evidence suggests that paternalism and interdependent preferences are leading overall explanations for the existence of in kind transfer programs but that some of the other arguments may apply to specific cases political economy considerations must also be part of the story

optimal domestic regulation under asymmetric information and international trade a simple general equilibrium approach we investigate the design of domestic incentive regulations in a small economy opened to trade and its implications for international specialization and for trade openness to remain welfare improving more specifically we append to an otherwise standard 2 2 heckscher ohlin model of a small open economy a continuum of intermediate sectors producing nontradable goods used in tradable sectors those goods are produced by privately informed regulated firms asymmetric information induces distortions with general equilibrium impacts the small economy becomes relatively richer in the informationally sensitive factor so that asymmetric information might reverse trade patterns free trade is pareto dominated by autarky when it exacerbates agency distortions

transaction costs and consumption abstract the rational expectations permanent income hypothesis re pih fails to explain several well documented features of consumption behavior first the estimated marginal propensity to consume mpc for unanticipated transitory income shocks is often much higher than what the theory warrants second the estimated mpc is typically much bigger for small shocks of this type than for large shocks third consumption is often smoothed against large anticipated future income changes but not always against small changes this paper argues that these findings can be reconciled within a re pih model that includes a cash in advance constraint and an assumption that the agent is required to pay a fixed transaction cost to transfer wealth between cash and assets key results of the paper include first the agent follows an s s rule with respect to cash holdings when he makes wealth transfer decisions second the mpc within the no transfer band is higher than that out of the band and can be as high as exactly equal to one and third the agent smoothes consumption in response to news of large future income changes but not necessarily to small ones

international pollution control cooperative versus noncooperative strategies abstract international pollution control involving two neighboring countries is modeled as a simple two player dynamic game each country produces a good that is consumed by domestic households production of each consumption good results in emissions of pollutants households in each country derive utility from the consumption of the domestically produced good but incur costs through the total stock of pollution stock externality in this setting we characterize cooperative as well as noncooperative pollution control strategies of the governments of the two countries that maximize the discounted stream of net benefits of a representative consumer it turns out that when the governments are restricted to use linear strategies noncooperative behavior results in overall losses for both countries if on the contrary governments use nonlinear markov perfect strategies and the discount rate is small enough a pareto efficient steady state pollution stock can be supported as a differentiable subgame perfect equilibrium thus the emergence of first best solutions cooperative outcomes does not require any institutional arrangements threats retaliation etc but can be brought about through the use of nonlinear markov perfect equilibrium strategies

the price effects of cash versus in kind transfers this article examines the effect of cash versus in kind transfers on local prices both types of transfers increase the demand for normal goods in kind transfers also increase supply in recipient communities which could lead to lower prices than under cash transfers we test and confirm this prediction using a programme in mexico that randomly assigned villages to receive boxes of food trucked into the village equivalently valued cash transfers or no transfers we find that prices are significantly lower under in kind transfers compared to cash transfers relative to the control group in kind transfers cause a 4 fall in prices while cash transfers cause a positive but negligible increase in prices in the more economically developed villages in the sample households purchasing power is only modestly affected by these price effects in the less developed villages the price effects are much larger in magnitude which we show is due to these villages being less tied to the outside economy and having less competition among local suppliers

the economics of food aid under subsistence farming with an application to malawi abstract we investigate how food aid affects price and production of staple food with a partial equilibrium model with non separable production and consumption the model captures the key characteristics of sub saharan africa subsistence economies simulations generate negative but also positive food aid elasticities of production conditions are identified which mitigate the negative impact and support a positive impact the share of domestic food production in total staple food demand and the share of income from staple food production in total household income are key determinants price and production equations estimated with a panel of district data of the malawi maize market for the period 1999 2010 show a small positive impact of food aid large negative impacts of food aid are not likely given production and income shares and behavioural responses

pecuniary redistribution through in kind programs abstract the pecuniary effects of cash and in kind programs differ a program that builds housing for the poor for example is likely to result in a lower price of existing low income housing than would an equally costly cash transfer program low income renters in general would benefit landlords would lose this paper argues that these pecuniary effects provide a previously unstudied rationale for the use of in kind programs specifically in a world in which the government has limited ability to target taxation the pecuniary effects of in kind programs may be used to transfer rents from one group in society to another the pros and cons of using in kind programs in this way are identified and examples from the real world are discussed

nonlinear strategies in dynamic duopolistic competition with sticky prices abstract we discuss nonlinear strategies in an infinite horizon duopoly game with sticky prices where firms maximize their discounted sum of profit we construct a stationary feedback equilibrium without guessing value functions and feedback strategies that solve the hamilton jacobi equation for this purpose we study the auxiliary equation that is derived from the hamilton jacobi equation we show that the domain of the state space plays an crucial role in characterizing feedback equilibria and discuss several implications of this observation in particular we find that when the upper bound of the state space is not very high previously unknown feedback equilibria emerge

the monetization of project and emergency food aid project level efficiency first abstract the level of food aid monetization has increased sharply particularly in africa and especially to cover the transport and non food costs of food aid projects monetization to raise cash is not wrong in principle and increases the efficiency of cash starved projects however the focus on generating counterpart funds has obscured a more important debate about whether and when food is more appropriate than cash at the project level there can be no general predisposition to use either food or cash but guidelines must be applied in each case

consequences of discretion in the formation of commodities policy abstract in a simple model of endogenous primary commodity price support policy i policy is affected by private inventories and ii private inventories are affected by speculative attempts to forecast policy the interaction between these two forces is rich yielding bubbles and extrinsic volatility thus helping to explain some odd episodes observed in commodity markets in addition under some conditions a government that wishes to support the price but is unable to commit to future action may be impotent and a government that does not want to support the price may be trapped into doing so by speculative activity

existence of stationary equilibrium in an incomplete market model with endogenous labor supply in this article i first study an income fluctuation problem with endogenous labor supply let be the agent s time discount factor and r 0 be the constant gross rate of return on assets for r 1 i show that the agent s wealth either approaches infinity almost surely or converges to a finite level almost surely for r

does food aid have disincentive effects on local production a general equilibrium perspective on food aid in ethiopia this paper examined impacts of food aid on domestic food production employing a computable general equilibrium modelling technique and using data from ethiopia the simulation experiments have shown that food aid has unambiguous disincentive effects on domestic food production the removal of food aid caused a modest increase in food prices but this stimulated food production employment and income generation effects of the latter outweighed the adverse effect of the former consequently the removal of food aid led to improvements in aggregate household welfare contrary to some concerns in the food aid literature that any reduction in food aid would hurt the poor the simulation experiments suggested that actually poor rural households and urban wage earners are the ones who benefit most in absence of food aid but entrepreneurs are more likely to encounter a marginal welfare decline we have distinguished between in kind food aid and cash equivalent transfers in order to isolate the disincentives that in kind transfers would make to domestic production from those that are related to household purchasing power problem the expansionary effect of removing food aid becomes significantly larger when it is accompanied by cash equivalent payments because the latter would provide demand side stimulus to agriculture while the removal of in kind transfers would stimulate supply side with the supply and demand side effects reinforcing each other in our modelling framework the only adverse effect would be a modest deterioration in the external current account because the expansionary effects of food aid would cause imports to rise but exports to fall

large cash transfers to the elderly in south africa we examine the social pension in south africa where large cash sums about twice the median per capita income of african households are paid to people qualified by age but irrespective of previous contributions we present the history of the scheme and use a 1993 nationally representative survey to investigate the redistributive consequences of the transfers documenting who receive the pensions their levels of living and those of their families we also look at behavioural effects particularly the effects of the cash receipts on the allocation of income to food schooling transfers and savings in south africa a large social pension about twice the median per capita income of african households is paid in cash to people qualified by age irrespective of previous contributions we present the history of the scheme and explain how such large transfers could come about in an economy in which the recipients were not only politically weak but without any political representation whatsoever we then use a 1993 nationally representative survey to investigate the redistributive consequences of the transfers documenting who receive the pensions their levels of living and those of their families we also look at behavioural effects particularly the effects of the cash receipts on the allocation of income to food schooling transfers and savings the pressing policy issue for south africans is whether it makes sense to target seven billion rand nearly 2 billion of social expenditure through the current pension schemes our analysis contributes to the discussion by documenting the redistributive and behavioural effects of the transfers we find that at least as far as immediate incidence is concerned and without allowance for behavioural effects the social pension is an effective tool of redistribution and that the households it reaches are predominantly poor because so many of the elderly among south africa s african population live with children the social pension is also effective in putting money into house

capital income taxation wealth distribution and borrowing constraints the theorem of zero taxation of capital income is reexamined and is shown to hinge critically on the assumptions of a long horizon and perfect markets for the inter temporal allocation of resources the theorem does not hold when borrowing constraints prevent individuals from insuring against idiosyncratic shocks and have a precautionary motive for savings structural assumptions are made such that with no taxation aggregate savings are socially excessive in the long run i e the rate of return is smaller than the discount rate sufficient conditions for a pareto efficient taxation or subsidization of capital in the long run depend on the correlation between individuals consumption and savings a subsidy may be efficient when individuals incomes follow a predictable pattern of life cycles with no negative bequest 2001 elsevier science b v all rights reserved

the feedback equilibria of a differential game of capitalism abstract the feedback equilibria of a capitalistic game described by kelvin lancaster are derived under concave utility functions with a constant degree of absolute risk aversion and standard production function it is shown that the equilibrium solution is unique if the rate of time preference and the constant degree of absolute risk aversion are sufficiently great some properties of the equilibrium solution are reported

dynamic duopolistic competition with sticky prices the authors study duopolistic competition in a homogeneous good through time under the assumption that its current desirability is an exponentially weighted function of accumulated past consumption this implies that the current price of the good does not decline by as much to accommodate any given level of current consumption our an alysis is conducted in terms of a differential game it is found that the equilibrium price corresponding to the open loop nash equilibriu m strategies approaches the static cournot equilibrium price while th e equilibrium price corresponding to the closed loop nash equilibrium strategies which are subgame perfect approaches a price below it copyright 1987 by the econometric society

on the existence and uniqueness of stationary equilibrium in bewley economies with production abstract i prove existence of stationary recursive competitive equilibrium in bewley economies with production under specifications in which i the utility function is allowed to be unbounded and ii the underlying discrete idiosyncratic productivity process can take any form aside from mild restrictions some of the intermediate results provide theoretical basis for assumptions often made in the quantitative macroeconomics literature by providing an example i illustrate that the equilibrium is not necessarily unique even under typical specifications of the model and discuss the underlying reasons for multiplicity

trade liberalization through asset markets abstract political economy expositions of trade policy have traditionally described asset or factor ownership as not subject to change asset markets however allow individuals to change the composition of income sources we consider an economy with stochastic productivity to show how the equilibrium composition of asset portfolios influences individual attitudes toward free trade the model links financial market completeness and trade liberalization in the second half of the 20th century and provides a contributing answer to why governments in poorer countries without well developed financial markets have failed to liberalize trade

export diversification and international debt under terms of trade uncertainty abstract this paper proposes an intertemporal approach to export diversification in developing countries facing uncertain terms of trade by incorporating international debt by far the predominant source of ldc external financing today the model provides a richer and more realistic framework than static models with no financial markets or models emphasizing international trade in equities the approach is applied to a small developing country with a comparative advantage in a risky commodity to illustrate explicitly the relation between intertemporal substitution in consumption and diversification in production

north south the implications for multinational banking abstract international finance should be of great value to developing countries because their potential growth paths are out of step with the world economy and because the gambles they must take to develop are much more diversifiable in the context of the world economy than locally however the actual benefits of north south finance have been limited by an overreliance on non specific bank credit with the inherent limitations and by errors in judgement by both borrowers and lenders in fact the current crisis threatens to reverse many of the earlier gains while the current crisis is primarily the result of the world recession the severity of its effects on lenders and borrowers reflects three key aspects of bank credits 1 its perverse real repayment patterns 2 its specific nature which implies that risks are transferred only through generalized non performance with its attendant deadweight costs and 3 its concentration in a small but critical segment of capital markets these characteristics would be serious even with ideal behavior by lenders and borrowers but they also can lend to inappropriate and possibly erratic behavior specific suggestion for restructuring the system of north south finance are given including 1 smoothing repayment patterns 2 increasing repayment flexibility 3 increasing risk bearing non specific finance 4 increasing non recourse financing and 5 increasing project specific risk capital

incomplete markets labor supply and capital accumulation we explore the accumulation of capital in the presence of limited insurance against idiosyncratic shocks borrowing constraints and endogenous labor supply in the exogenous labor supply case e g aiyagari 1994 huggett 1997 the presence of limited insurance increases the demand for savings for precautionary reasons as a consequence capital and output are higher under incomplete markets we show that if labor hours are endogenous labor supply is likely to be lower under incomplete markets because those agents who experience a high shock to productivity are ex post richer and they work fewer hours in some cases this wealth effect can overcome the aggregate precautionary savings and give rise to lower savings and output under incomplete

financial integration and growth in a risky world abstract we revisit the debate on the benefits of financial integration in a two country neoclassical growth model with aggregate uncertainty the framework accounts simultaneously for gains from a more efficient capital allocation and gains from risk sharing together with their interaction global numerical methods allow for meaningful welfare comparisons gains from integration are quantitatively small even for riskier and capital scarce emerging economies these countries import capital for efficiency reasons before exporting it for self insurance leading to capital flows and growth reversals along the transition this opens the door to richer empirical implications than previously considered in the literature

financial contracts and international lending abstract this paper examines alternative financial contracts for international lending i demonstrate that conventional loans can be pareto dominated by financial contracts explicitly incorporating characteristics of the borrower s product market i provide conditions under which commodity linked debt is desirable and determine when more complicated revenue linked loans are optimal i also demonstrate that the type of lending contract has important real effects on production decisions one result of this research is to demonstrate why equity based lending arrangements may have limited applicability

a dynamic conjectural variations model in the private provision of public goods a differential game approach abstract the purpose of this paper is to provide a reasonable microfoundation to justify the concept of a conjectural variations equilibrium which is often used in the literature on private provision of public goods with the help of the differential game by interpreting the steady state conjectures in a dynamic contribution game as the conjectural variations in the corresponding static game we derive explicit forms of nash or non zero conjectural variations depending on the choice of the strategy spaces furthermore we find that there may be uncountable many conjectural variations and the possibility of matching behavior i e positive conjectural variations when non linear markov perfect strategies are used and when the domain of a state variable is appropriately restricted

export specialisation and local economic growth this paper aims to provide empirical evidence on whether export specialization or diversification is better for local economic growth using export data from 354 magisterial districts of south africa for 1996 and 2001 we estimate spatial growth regressions that include measures of the degree of export specialization and diversification overall exporting regions outperform other less or non exporting regions also we find that export specialisation rather than export diversification has been associated with local economic growth with specialization in mining and agriculture being especially beneficial our results support the view that specialization in a locality s area of comparative advantage is good for local economic development we also find that localities with higher initial levels of human capital and higher subsequent population growth performed better this is consistent with the belief that policies aimed at strengthening human capital and improving agglomeration economies will enhance local economic development

non linear strategies in a linear quadratic differential game abstract we study non linear markov perfect equilibria in a two agent linear quadratic differential game in contrast to the literature owing to tsutsui and mino 1990 nonlinear strategies in dynamic duopolistic competition with sticky prices journal of economic theory 52 136 161 we do not associate endogenous subsets of the state space with candidate solutions instead we use the catching up optimality criterion to address the possibility of infinitely valued value functions applying sufficiency conditions for existence based on those in dockner et al 2000 differential games in economics and management science cambridge university press cambridge yields the familiar linear mpe and a condition under which a continuum of non linear mpes exists these include as their limit a previously unreported piecewise linear mpe the condition relaxes with increasing patience allowing more efficient steady states thus suggesting a folk theorem for differential games as the lower state and control bounds go to the non linear strategies are eliminated

the optimal tariff production lags and time consistency the optimal tariff for a large country equals the reciprocal of the foreign export elasticity of supply however if production decisions occur before consumption decisions the ex ante optimal tariff is not time consistent because the ex post elasticity is less than the ex ante elasticity we show all countries are worse off if the large country cannot precommit to its ex ante optimal tariff and that all countries can gain if the large country taxes domestic production of importables

social protection 2 0 exploring issues evidence and debates in a globalizing world abstract this paper reviews the growing literature on social protection while not new the concept evolved remarkably in recent years it is approached from a multitude of perspectives and intersects with broader bodies of literature particularly around public policy pro poor growth rights humanitarian strategies and aid effectiveness as well as feeding into specific programmatic issues e g conditionality targeting and transfer selection this blend of challenges and approaches has often made debates elusive and polarized the paper examines the evolution and definitions of social protection and unbundles critical policy institutional and implementation quandaries taken together these considerations shape a set of context specific models of social protection the paper s five core conclusions may help chart future directions for social protection research and practice

enhancing nutrition a new tool for ex ante comparison of commodity based vouchers and food transfers summary this article presents a new analytical tool for ex ante comparison of the cost effectiveness of two transfer modalities in pursuing specific nutritional objectives it does so by introducing a metric to score the nutrient value of a food basket the nutrient value score nvs and explains how this metric can be combined with full supply chain analysis and costing to generate a new tool the omega value the use of the omega value allows policy makers who design a program with nutrition objectives to compare direct food transfers and commodity based food vouchers in terms of both cost efficiency and cost effectiveness 2013 elsevier ltd all rights reserved

famine in north korea causes and cures in this paper we start from incomplete data ridden with gross measurement errors to construct the underlying data base for a computable general equilibrium model cge of the north korean economy using cross entropy estimation techniques this model incorporates fragmentary information in a rigorous way and allows us to examine the implications of a number of alternative scenarios first we model a production oriented recovery program as the restoration of flood affected lands we then model an external assistance program as the acquisition of all food aid necessary to attain the united nations organizations estimates of minimum human needs the trade oriented recovery program is modeled as a relaxation of agricultural import quotas and the importation of food on commercial terms finally we model a systemic reform program as the elimination of quantitative restrictions on all external trade

cash versus direct food relief abstract the usual method of providing relief to a famine region is to import food and distribute it to the needy direct food relief if there are markets for food in the region however a relief agency could just as easily distribute money to the needy and let them purchase food in the market cash relief this alternative has been much discussed in the famine literature recently the purpose of this paper is to clarify the conditions under which cash relief will be more or less effective than direct food relief by analyzing the relative effectiveness of the two policies in a formal model

external market conditions competitiveness diversification and ldcs exports ldcs trade policies in the post war period have been influenced greatly by trade pessimism theory increasingly however the assumptions underlying the pessimists analysis and the wisdom of their policy prescriptions have been challenged this paper attempts to construct a model which may be used to investigate the determinants of export performance for individual developing countries and the determinants of relative performance across the sample of twenty seven countries the results obtained both for individual countries and across the sample tend to support the emphasis placed by the opponents of trade pessimism on the importance of supply side factors

relief programs when it may be better to give food instead of cash abstract a standard way to give relief to the needy is to organize employment or public works programs it is often argued that in many situations paying workers in cash instead of food may be the superior option the aim of this paper is to caution that some plausible spillover effects may weaken this argument observe that paying wages in food and in cash can have differential effects on prices a cash for work program would typically enhance the demand for food cause food prices to rise and result in more food in the hands of those who have received the wages this will mean that those who are left out of the program for example the old and the infirm could be worse off

equilibrium asset prices with undiversifiable labor income risk abstract in a two period lucas tree economy in which ex ante identical but ex post dissimilar agents face undiversifiable labor income risk calibrating a wrong representative agent model results in overstating the equilibrium riskfree rate and in understating the equilibrium equity premium if the utility function exhibits decreasing absolute risk aversion and decreasing absolute prudence these behavioral assumptions provide as a consequence a theoretical rationale for the often advanced conjecture that nontraded risk contributes to the solution of the riskfree rate and equity premium puzzles

consumption liquidity constraints and asset accumulation in the presence of random income fluctuations recent empirical research flavin 1981 hagashi 1982 has rejected the certainty equivalent formulation of permanent income hypothesis hall 1978 these findings are often attributed to households inability to borrow completely against expected future labor income this paper is a theoretical investigation of optimal consumption behavior under risk aversion random income fluctuations and borrowing restrictions our principle objective is to establish the existence and to investigate the properties of the stationary probability distribution which characterizes the asymptotic behavior of consumption under these conditions this abstract was borrowed from another version of this item

the cambridge group and the developing countries the policy prescriptions of the cambridge economic policy group cepg for the united kingdom are well known they involve all round protection of british industry that would allegedly permit reaching simultaneously higher output levels lower unemployment rates and lower inflation rates since first presented in february 1975 the views of the cambridge group have been several times and have been repeatedly subjected to criticism 1

consumption and investment under constraints abstract we study the problem of an investor who is endowed with a deterministic level of initial capital and must use this endowment to consume and invest in a financial market the investor is constrained to consume at a minimum rate throughout the period and has to maintain his wealth over a lower bound at all times both these minimal requirements may be stochastic an example of such an investor would be an investment firm with cash flow commitments and subject to regulatory capital constraints in addition the investor s portfolio choices are limited to a convex constraint set this accounts for prohibitions on short selling and incompleteness of the market using the space of associated risk neutral measures we construct portfolio policies to support target consumption investment plans we also consider a utility maximization problem for the investor and provide a related dual minimization problem over the space of measures the solution of this dual problem provides a price system under which the investor can solve for his optimal consumption investment policy in general however we are not assured of existence due to the fact that the investor s minimal requirements may themselves be beyond the span of the constrained portfolios

the effects of financial development in the short and long run theory and evidence from india abstract although many view financial access as a means of reducing poverty or increasing growth empirical studies have produced contradictory results one problem is that most studies cover only a short time frame and do not consider dynamic effects i show that introducing credit in a general model of intertemporal consumption creates a boom in consumption and reduces poverty initially but eventually reduces mean consumption because credit substitutes for precautionary wealth using new consistent consumption data that cover a much longer time period than most studies my empirical findings show that increased access to bank branches in rural india increased consumption initially and reduced poverty but consumption later fell and poverty rose the long term effect is still positive however suggesting that credit may have a beneficial role beyond consumption smoothing

shifting sands the changing case for monetizing project food aid in bangladesh abstract monetization involves local sale of food aid commodities and using the cash to finance other programs to explore the likely consequences of monetization this paper combines a stockpile of recent microeconomic evidence from food and cash for work projects in bangladesh together with a multimarket simulation model results suggest that a switch from food for work s ffw in kind deliveries of wheat to an identical wheat financed cash for work cfw program would unambiguously improve welfare of the poor

duality and liquidity constraints under uncertainty a dual approach to the problem of maximizing lifetime utility subject to liquidity constraints in discrete time leads to a dual dynamic programming formulation which links commodity and asset demand theory under uncertainty with frisch demand theory we establish the existence of a threshold level of wealth that characterizes constrained behavior we explore the power of the dual approach for empirical work

issues in valuing food aid the cash or in kind controversy abstract this paper focuses on developing a conceptual model to analyze the impacts of in kind transfers or payments of food for aid in particular attention is focused on the specific issue for food for work programs and the different methods of valuing these benefits there are three general methods used to value in kind payments 1 value at government costs 2 market value and 3 cash equivalent value no single method for estimating in kind values is uniquely appropriate and depends on the data availability and the end uses of the results the analytical approach is the standard economic model of utility maximization using indifference curves subject to a budget constraint adjusted to evaluate the effects of income in kind the analytical framework is then adopted to discuss some implications drawn from a recent ffwp evaluation conducted in ethiopia

investment in developed and less developed countries a number of studies have compared the investment risk of various industries and of various individual corporations in developed countries dcs the purpose of this paper is to compare investment risk in dcs with less developed countries ldcs the variance of returns to investment in common stocks provides a natural measure of investment risk and will be used in this study studies in ldcs include work of levy and sarnat 12 13 errunza 3 4 and lessard 11 levy and sarnat and errunza found low economy wide investment risk on an average for ldcs relative to dcs with stock indices being used as surrogates for economy wide risk these results are not unambiguous however because there are probable difficulties due to infrequent trading and averaging in the broad market indices used in the above studies hence we use a sample of the largest corporations that suffer little if at all from thin trading and or averaging

unemployment and liquidity constraints summary we present a dynamic framework for the interaction between borrowing liquidity constraints and deviations of actual hours from desired hours both measured by discrete valued indicators and estimate it as a system of dynamic binary and ordered probit models with panel data from the panel study of income dynamics we analyze a household s propensity to be liquidity constrained by means of a dynamic binary probit model we analyze qualitative aspects of the conditions of employment namely whether the household head is involuntarily overemployed voluntarily employed or involuntarily underemployed or unemployed by means of a dynamic ordered probit model we focus on the possible interaction between the two types of constraints we estimate these models jointly using maximum simulated likelihood where we allow for individual random effects along with an autoregressive process for the general error term in each equation a novel feature of our method is that it allows for the random effects to be correlated with regressors in a time invariant fashion our results provide strong support for the basic theory of constrained behavior and the interaction between liquidity constraints and exogenous constraints on labor supply copyright 2007 john wiley sons ltd

regional free trade and social integration this paper analyzes recent free trade arrangements from a positive political economy perspective in contrast to most other literature which fails to take into account geographical factors it is argued here that proximity and transportation costs play an important role in trade arrangements another important also largely neglected factor is the degree of social cohesion in terms of labor standards among potential trading partners a political support maximizing government will consider these factors when balancing political support from free traders and protectionists

the specific factors continuum model with implications for globalization and income risk abstract this paper embeds the specific factors model in the goods continuum approach of dornbusch et al 1977 1980 and applies it to analyze the effect of globalization on income risk globalization amplifies sector specific income risk induced by idiosyncratic sectoral technology shocks but tends to reduce income risk to both mobile and immobile factors induced by aggregate technology shocks that differ by country aggregate risk bears most heavily on the poorest specific factors

when do borrowing constraints bind some new results on the income fluctuation problem abstract the empirical failure of the permanent income hypothesis has prompted researchers to investigate models in which consumers are liquidity constrained as shown in deaton econometrica 59 5 1991 1221 liquidity constrained consumers might choose to exhaust their borrowing capacity from time to time yet due to technical limitations the conditions under which this behavior arises have not been investigated the present paper extends the class of solvable models in a way that allows this issue to be dealt with it turns out that under the loosest sustainable borrowing constraint the agent might systematically avoid exhausting his borrowing capacity

why environmentalists resist trade liberalization we build a two country differential game model of polluting oligopoly to consider the effects of trade liberalization as in static models the opening of trade promotes competition but expands global pollution characterizing open loop and feedback strategies we derive a sufficient condition for losses from trade this losses from trade proposition could provide a rationale for persistent resistance to globalization by environmentalists

safety nets and index based insurance historical assessment and semiparametric simulation for northern ghana abstract this article considers index based safety nets aimed at assuring participants a minimum income at the village level set by a prespecified poverty line the participating villages collectively manage a pooled budget offering an index based per capita indemnity to the villages financed from a uniform per hectare premium possibly supplemented by an external subsidy the scheme involves implicit cross subsidies in favor of the poorest villages otherwise it focuses on covariate risk leaving it to mutual arrangements to deal with intravillage idiosyncratic risk its design is obtained from a risk minimizing model for the collective of villages with constraints of two kinds the first is the budget that ensures that payments receive adequate finances the second concerns the set of admissible schedules requiring that payments are triggered by a flexible function of only a few variables for this we propose a semiparametric form from kernel learning noting its capacity to combine a priori on the i

towards a theory of famine relief policy abstract this paper examines how famine mortality is related to the distribution of food consumption a theoretical model is proposed of how individual survival chances are affected by changes in consumption uncertainty in survival prospects arises from the errors made by any observer in assessing health at given current consumption the theory is used to explore two policy issues in famine relief the choice of budgetary rules for allocating emergency aid and the case for price stabilization policies during famines applications to data for two famines in south asia suggest that successful price stabilization would have had substantial benefits in reducing mortality

tariffs as insurance optimal commercial policy when domestic markets are incomplete free trade is not optimal for a small country that faces uncertain terms of trade if some factors are immobile ex post and markets for contingent claims are incomplete the government can improve social welfare by using commercial policy that serves as a partial substitute for missing insurance markets using a combination of analytical and simulation techniques we demonstrate that optimal policy for this purpose will often have an anti trade bias we also show that the usual preference by economists for factor or product taxes and subsidies over tariffs and export subsidies may not be justified in this context this abstract was borrowed from another version of this item