household level spillover effects from biofuels evidence from castor in ethiopia the indirect effects of biofuels are mostly considered negative in this paper we argue that there may be a positive indirect effect of biofuels on food security and poverty using micro level evidence and a matched plot pair design through which we control for plot and farmer characteristics we show that the introduction of castor production for biofuel in a poor country as ethiopia can significantly improve food productivity of rural households who produce raw material for biofuel production this spillover seems particularly linked to enhanced access to inputs and technical assistance which were provided as part of biofuel feedstock production contracts our results thus document another mechanism through which biofuels may influence smallholders food security a mechanism that did not receive attention so far

smallholder market participation concepts and evidence from eastern and southern africa abstract this paper reviews the evidence on smallholder market participation with a focus on staple foodgrains i e cereals in eastern and southern africa in an effort to help better identify what interventions are most likely to break smallholders out of the semi subsistence poverty trap that appears to ensnare much of rural africa the conceptual and empirical evidence suggests that interventions aimed at facilitating smallholder organization at reducing the costs of intermarket commerce and perhaps especially at improving poorer households access to improved technologies and productive assets are central to stimulating smallholder market participation and escape from semi subsistence poverty traps macroeconomic and trade policy tools appear less useful in inducing market participation by poor smallholders in the region

production contracts and productivity in the u s hog sector this article measures the impact of contracting on partial and total factor productivity and the production technology of u s hog operations a sample selection model accounts for the fact that unobservable variables may be correlated with both the operators decision to contract and farm productivity results indicate that the use of production contracts is associated with a substantial increase in factor productivity and represents a technological improvement over independent production results also identify determinants of farmers decisions to contract and other factors influencing farm the rapid increase in the use of production contracts is a notable feature of the structural change taking place in the us hog industry between 1992 and 1998 the portion of feeder pig to finish hog operations using production contracts increased from 11 to 34 while the share of output produced under contract increased from 22 to 63 mcbride mcbride and key production contracts offer several potential advantages over independent production that could explain their growing prevalence contracts may serve to lower transaction costs associated with search negotiation and transfer reduce asymmetric information between growers and processors about product quality improve coordination of product delivery and lower income risk for growers in addition contracting may raise farm productivity by improving the quality of managerial inputs by speeding the transfer of technical information to growers or by facilitating growers access to credit thereby permitting the adoption of newer more efficient technologies in this article we focus on identifying and measuring the farm level productivity gains if any that can be attributed to contracting the recent growth in contracting does not necessarily imply that contracts are associated with higher farm productivity the increase in the use of contracts may have been propelled

producer price risk and quality measurement risk averse farmers in the produce industry grow a product whose market price is often quite unpredictable shippers or other intermediaries shield the farmer from much of this price risk however actual contracts between growers and shippers vary considerably across commodities in the residual price risk growers face we hypothesize that imperfect quality measurement results in a moral hazard problem and that price provides additional information regarding quality as a consequence an efficient contract does not shield growers from all idiosyncratic price risk we examine this hypothesis for the case of fresh market tomatoes

interlinked credit and farm intensification evidence from kenya abstract this paper addresses the potential for interlinked credit input output marketing arrangements for particular cash crops to promote food crop intensification using panel survey data from kenya we estimate a household fixed effects model of fertiliser use per hectare of food crops using an instrumental variables approach for addressing the endogeneity of participation in interlinked credit arrangements results indicate that households engaging in interlinked marketing programs for selected cash crops applied considerably greater fertiliser on other crops primarily cereals not directly purchased by the cash crop trading firm these findings suggest that in addition to the direct stimulus that interlinked cash crop marketing arrangements can have on small farmer incomes these institutional arrangements may provide spill over benefits for the productivity of farmers other activities such as food cropping

private food safety and quality standards for fresh produce exporters the case of hortico agrisystems zimbabwe abstract there is evidence that the challenges of complying with stricter food safety and quality standards are acting to exclude small scale producers from export supply chains for high value agricultural products the case of hortico agrisystems illustrates the considerable challenges and costs faced by supermarket suppliers in sourcing from a broad base of small scale producers in the context of evolving food safety and quality standards while small scale producers are able to achieve levels of compliance at least equal to those of large scale producers multi tiered and dynamic systems of control are required to maintain control these need to include measures that facilitate compliance incentives to reward good performance and penalties to punish non compliance in establishing a sustainable supply system in this context both exporters and small scale producers face a steep learning curve in adjusting to new requirements further emphasising the need for supply chains to be responsive to change

partial vertical integration risk shifting and product rejection in the high value export supply chain the ghana pineapple sector summary high value export supply chains hold potential to improve smallholders welfare but their relative production inefficiency and moral hazard problems can cause exporters to prefer vertically integrated plantation production however pineapple exporters in ghana produce both for their own account and purchase from smallholders we hypothesize that vertical integration is only partial because exporters face large market risks that smallholders surprisingly are better able to absorb we show empirically that exporters average rejection rate of export quality fruit is high and varies in response to unanticipated fluctuations in european demand these results support the hypothesis and are consistent with theories of partial vertical integration but not the standard principal agent paradigm

crime rates and local labor market opportunities in the united states 1979 1997 the labor market prospects of young unskilled men fell dramatically in the 1980s and improved in the 1990s crime rates show a reverse pattern increasing during the 1980s and falling in the 1990s because young unskilled men commit most crime this paper seeks to establish a causal relationship between the two trends previous work on the relationship between labor markets and crime focused mainly on the relationship between the unemployment rate and crime and found inconclusive results in contrast this paper examines the impact of both wages and unemployment on crime and uses instrumental variables to establish causality we conclude that both wages and unemployment are significantly related to crime but that wages played a larger role in the crime trends over the last few decades these results are robust to the inclusion of deterrence variables controls for simultaneity and controlling for individual and family characteristics

cash crop liberalization and poverty alleviation in africa evidence from malawi this article uses the case of burley tobacco liberalization in malawi to investigate the efficacy of cash crop liberalization as an instrument for poverty alleviation in sub saharan africa the principal justification for cash crop liberalization is that markets allow farm households to increase their incomes by producing that which provides the highest return to their productive resources and use the cash to buy consumption goods using a latent welfare model we find that households that selected to grow cash crops had higher incomes than those that did not grow cash crops however we also find that due to the lumpiness and seasonality of cash crop incomes higher household incomes while increasing food purchases did not significantly affect per capita food intake irrespective of participation in cash crops for much of the cropping season rural households seem to rely more on nonfarm income for expenditure and consumption smoothing

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

male unemployment and crime in england and wales this paper employs county level data to investigate the relationship between crime and male adult and youth unemployment in britain our results indicate that there is a systematic positive relationship between most crime and male unemployment regardless of age

cash crops and food security evidence from ethiopian smallholder coffee producers one of the central questions in food policy debates has been the role of cash cropping for achieving food security in low income countries we revisit this question in the context of smallholder co

rice farmers preferences for fairtrade contracting in benin evidence from a discrete choice experiment abstract private standards such as fairtrade have emerged as a response to consumer civil society and corporate concerns about the production conditions of imported food many studies have investigated the welfare implications of smallholder participation in fairtrade schemes and consumers willingness to pay for fairtrade and other labelled products on the other hand no study has yet investigated farmers preferences for fairtrade and other private standards such insights would be valuable to improve the efficiency of certification schemes and ensure that they are tailored to farmers needs using a choice experiment this study investigates the preferences of smallholder rice farmers in benin for fairtrade and organic standards and compares the value of three types of contracts domestic fairtrade and fairtrade organic the results indicate that farmers positively value contracts but prefer domestic over fairtrade contracts because the former involve fewer requirements at current market prices farmers are willing to accept a fairtrade contract that includes fertiliser and child labour restrictions and a social premium but they are not willing to accept a fairtrade organic contract that completely prohibits chemical input use the results imply that adding organic requirements to fairtrade contracts may undermine the adoption and spread of fairtrade certification in the beninese rice sector

trade education and growth the small country case this paper develops optimal educational and trade policies for a small open economy capable of growth a theoretical structure previously used for the analysis of education and growth in closed economies manning 1975 1976 1978 1979a 1979b 1981b is extended to do this the analysis is aggregative it differs from that of a similar problem by aarrestad 1978 by allowing for heterogeneity of the labor force recently henry 1979 and henry and manning 1980 developed the model of this paper to permit the endogenous determination of international commodity prices but only in the context of balanced growth all of these papers belong to a small literature on aggregative aspects of education and growth other examples of which include aarrestad 1975 hu 1976 razin 1972a 1972b tu 1969 1970 and uzawa 1965 oniki and uzawa 1965 is the classic extension of the heckscher ohlin theory of international trade to permit growth in models of their type production possibilities are given instantaneously and are altered over time by factor accumulation educational policy affects the production possibility set in two ways an increase in educational activity reduces the factors available to produce traded goods and so shrinks the production possibility set immediately in the longer term the level of skill is altered so changing the production possibility set both the size and shape of the production possibility set are determined statically and dynamically by educational policy mcmillan 1978 has recently presented a model of public intermediate goods trade and growth with the same property a problem like this is considered in manning 1981a for a general model of capital accumulation and growth the structure of this paper is as follows the model and optimality conditions are first presented growth is then analyzed and it is found that specialization is the most likely pattern of production a deeper investigation of the economics of the model explains this conclusion some concluding remarks are then made details of the lengthy mathematical proofs of two propositions are relegated to a mathematical appendix

model uncertainty and the effect of shall issue right to carry laws on crime in this paper we explore the role of model uncertainty in explaining the different findings in the literature regarding the effect of shall issue right to carry concealed weapons laws on crime in particular we systematically examine how different modeling assumptions affect the results we find little support for some widely used assumptions in the literature e g population weights but find that allowing for the effect of the law to be heterogeneous across both counties and over time is important for explaining the observed patterns of crime in terms of model uncertainty we find that there is substantial variation in the estimated effects for each model across all dimensions of the model space this suggests that one should be cautious in using the results from any particular model to inform policy decisions

the transition to modern agriculture contract farming in developing economies recent years have seen considerable interest in the impact of contract farming on farmers in developing countries motivated out of belief that contract farming spurs transition to modern agriculture in this article we provide a thorough review of the empirical literature on contract farming in bo

contract farming and smallholder incentives to produce high quality experimental evidence from the vietnamese dairy sector in emerging markets for high value food products in developing countries processing companies search for efficient ways to source raw material of high quality one widely embraced approach is contract farming but relatively little is known about the appropriate design of financial incentives in a small farm context we use the example of the vietnamese dairy sector to analyze the effectiveness of existing contracts between a processor and smallholder farmers in terms of incentivizing the production of high quality milk a framed field experiment is conducted to evaluate the impact of two incentive instruments a price penalty for low quality and a bonus for consistent high quality milk on farmers investment in quality improving inputs statistical analysis suggests that the penalty drives farmers into higher input use resulting in better output quality the bonus payment generates even higher quality milk we also find that input choice levels depend on farmers socio economic characteristics such as wealth while individual risk preferences seem to be less important implications for the design of contracts with smallholders are discussed

developing agricultural markets in sub saharan africa organic cocoa in rural uganda abstract this article investigates the process of development in a traditional african export market focusing on a contract farming scheme for organic cocoa in rural uganda based on a repeated household survey we measure the impact of the scheme on the income of participants and the economic mechanisms behind these effects we find substantial benefits from the scheme driven primarily by the establishment of credible incentives for farmers to adopt technologies which improve cocoa quality there is also evidence of broader trends of market deepening and increased productivity probably due to positive spillovers

contract farming in staple food chains the case of rice in benin abstract in this paper we analyze the impact of smallholder participation in a contract farming scheme in the rice sector in benin we use data from a cross sectional farm household survey and different propensity score matching estimations to reveal how participation in a contract farming scheme affects smallholder rice production we find that contract farming results in expansion of the rice area intensification of rice production increased commercialization of rice and higher farm gate prices and ultimately contributes to rice output growth and increased income our findings imply that contract farming can contribute to upgrading the rice supply chain and the development of the rice sector in benin promoting and supporting the spread of contract farming schemes in the sector might be an effective way to contribute to reaching the government goals of expanding rice production to become self sufficient and improving rice quality to compete with imported rice while there is a large empirical literature on contract farming in high value and commodity export sectors studies on contract farming in staple food sectors are very scarce our results document that contract farming for staple food crops can be sustainable and benefit smallholder farmers which is against theoretical expectations that contracting for staple food crops is not feasible because of contract enforcement problems that stem from a low value of produce low storage and transport costs and a larger number of buyers in the chain our study contributes to understanding the role that contract farming might play in the much needed upgrading of domestic and staple food crop sectors in developing countries

unemployment and crime rates in the post world war ii united states a theoretical and empirical analysis using annual time series data for the united states 1946 1982 two hypotheses are tested 1 the level of the unemployment rate in any given year will have a negative partial contemporaneous effect on detrendedfluctuations increases or decreases in seven index crime rates homicide rape aggravated assault robbery burglary larceny theft and motor vehicle theft in that year 2 unemployment rate fluctuationsfrom one year to the next will have a positive partial effect on detrended crime rate fluctuations in the next year these hypotheses are developed from a theoretical model that identifies the former with a criminal opportunity effect and the latter with a criminal motivation effect of aggregate unemployment on crime for burglary robbery and larceny theft empirical support is found for the expected pattern of partial effects however the relative sizes of the effects are such that the total impacts of unemployment through both partial effects are negative in addition only the negative levels effect is exhibited for homicide and motor vehicle theft while rape and aggravated assault show no consistent association with either levels orfluctuations in the unemployment rate interpretations for these findings are discussed

cash crop production food price volatility and rural market integration in the third world large farmers in the third world often devote to cash crops a larger share of their land than do small farmers this paper suggests a possible explanation even in the presence of food markets third world farmers food security is best assured by food self sufficiency a model of crop portfolio choice under multivariate risk is used to show that reasonable assumptions regarding risk and preferences reproduce the observed pattern simulations further indicate that food market integration reduces the need for food self sufficiency policy implications are drawn regarding domestic trade liberalization and agricultural technology

the welfare effects of trade in phytomedicines a multi disciplinary analysis of turmeric production summary international trade in medicinal herbal products is growing while value chains are becoming more complex and governed by a range of public and private standards there is a debate over the extent to which phytomedicine production can be beneficial for farmers in low and middle income countries more generally there are varied views about the extent to which small farmers are disadvantaged by stringent public health and private consumer standards in northern markets for agricultural products this paper proves a comparative analysis of value chains using case studies of turmeric production in india it marries a qualitative investigation of turmeric producing sites in india with an investigation into the chemical quality of various turmeric products the aim of the paper is to understand the way that varied structure and governance of value chains changes the benefits to both producer and consumer when production is for the organic northern market we found evidence of a captive value chain where the lead firm requires strict adherence to conditions of production and processing prices for farmers were relatively stable at a reasonably high level in contrast where farmers were producing for local markets including the major auction at erode prices were volatile and farmers bore considerable risk we found that competition and volatility in the market based chain can lead to turmeric adulteration and contamination both intentional and unintentional our case study suggests that many small turmeric farmers would find it difficult to meet both public and private health standards in contrast to some academic literature that argues that public health standards do not discriminate against small farmers more than this our study adds to the discussion of the impact of standards suggesting clear consumer benefits in northern markets however there are also indications that only larger and more dynamic farmers can participate in the lucrative phytomedicine trade as such our study tentatively supports previous literature suggesting that the application of standards in northern markets lead to increasing farmer differentiation

contract farming configuration smallholders preferences for contract design attributes while contract farming cf can enhance smallholders income in developing countries empirical research on the motivation of smallholders to participate in cf is scarce this paper explores farmer preferences for particular contract design attributes we combined analytical hierarchy process and discrete choice experiments to investigate the importance of contract design attributes on the basis of data collected among potato farmers in ethiopia we found that input market uncertainty is more important than output market uncertainty in smallholders decision to participate farmers tend to minimize their risk by opting for the buyer firm above the state and ngos as providers of seed inputs and technical assistance the results imply that the success of a cf scheme depends on the willingness of the firm to incorporate the preferred contract design attributes institutional intervention in the input market could induce agribusiness firms to offer attractive contracts for smallholders

competition and coordination in liberalized african cotton market systems abstract private operators now dominate input supply crop buying and ginning activities in many african cotton sectors varying levels of competition are observed but greater levels of competition are not necessarily associated with better system performance this paper explores this phenomenon drawing on the liberalization experience of ghana mozambique tanzania uganda zambia and zimbabwe while the capacity of the state to support markets remains weak there may be tradeoffs between the level of competition and the degree of coordination achieved between players within a sector different sectoral structures are observed with a different role for the state appropriate for each

farmer participation in supermarket channels production technology and efficiency the case of vegetables in kenya supermarkets are gaining ground in agrifood systems of many developing countries while recent research has analyzed income effects in the small farm sector impacts on productivity and efficiency have hardly been studied we use a meta frontier approach and combine this with propensity score matching to estimate treatment effects among vegetable farmers in kenya participation in supermarket channels increases farm productivity in terms of meta technology ratios by 45 we also find positive and significant impacts on technical efficiency and scale efficiency supermarket expansion therefore presents opportunities for agricultural growth in the small farm sector which is crucial for poverty reduction in africa copyright 2012 oxford university press

biofuels and food security micro evidence from ethiopia abstract there is considerable controversy about the impact of biofuels on food security in developing countries a major concern is that biofuels reduce food security by increasing food prices in this paper we use survey evidence to assess the impact of castor production on poor and food insecure rural households in ethiopia about 1 3 of poor farmers have allocated on average 15 of their land to the production of castor beans under contract in biofuel supply chains castor production significantly improves their food security they have fewer months without food and the amount of food they consume increases castor cultivation is beneficial for participating households food security in several ways by generating cash income from castor contracts they can store food for the lean season castor beans preserve well on the field which allows sales when farmers are in need of cash or food spillover effects of castor contracts increases the productivity of food crops increased food crop productivity offsets the amount of land used for castor so that the total local food supply is not affected

food marketing and pricing policy in eastern and southern africa a survey abstract this article surveys the empirical record of grain marketing and pricing policy in eastern and southern africa over 1930 1995 the paper addresses five key issues with major implications for food policy throughout africa a why the anticipated supply response to market liberalization has not yet occurred b why the common assumption of state taxation of farmers to support a cheap food policy does not apply in most of the countries in the region c why the temporary successes of the state led approach to stimulating smallholder grain production were unsustainable d why the elimination of government food subsidies associated with market reform has not adversely affected consumers and e why the fiscal cost of the marketing systems at least initially worsened rather than improved after the reforms were implemented in most countries the key future challenges for marketing policy are how to develop coordinated and financially sustainable input finance and commodity marketing systems for raising productivity growth in smallholder agriculture while overcoming inherited agricultural dualism and how to mitigate the effects of food price instability in a cost effective manner

agroindustrialization through institutional innovation transaction costs cooperatives and milk market development in the east african highlands abstract some small holders are able to generate reliable and substantial income flows through small scale dairy production for the local market for others a set of unique transaction costs hinders participation cooperative selling institutions are potential catalysts for mitigating these costs stimulating entry into the market and promoting growth in rural communities trends in cooperative organization in east african dairy are evaluated empirical work focuses on alternative techniques for effecting participation among a representative sample of peri urban milk producers in the ethiopian highlands the variables considered are a modern production practice cross bred cow use a traditional production practice indigenous cow use three intellectual capital forming variables experience education and extension and the provision of infrastructure as measured by time to transport milk to market a tobit analysis of marketable surplus generates precise estimates of non participants distances to market and their reservation levels of the covariates measures of the inputs necessary to sustain and enhance the market policy implications focus on the availability of cross bred stock and the level of market infrastructure both of which have marked effects on participation the velocity of transactions in the local community and inevitably the social returns to agroindustrialization

distributional effects of agricultural cooperatives in china exclusion of smallholders and potential gains on participation abstract this paper examines the treatment effects of the agricultural cooperative and publicly funded extension services on individual household economy using data collected by the author from watermelon producing farm households in rural nanjing the cooperative addressed in this study restricts the participation of small scale farmers implying that selection into the program must be taken into consideration for an accurate assessment of the treatment effect the econometric analysis revealed that government extension services have a modest effect on farm income in contrast the treatment effect of the agricultural cooperative is robust and substantially large accounting for nearly 70 of the pre matching difference this suggests that the agricultural cooperative system is an important avenue for farmers to improve their economic status the treatment effect of the agricultural cooperative is highly heterogeneous the economic benefits arising from the cooperative are significant only for small scale farms we can argue that a coexistence of smallholder exclusion and the treatment effect in favor of small scale farms poses serious challenges to pro poor agricultural growth in china

on the political economy of income redistribution and crime this article analyzes a general equilibrium model in which agents choose to specialize in either legitimate or criminal activities expenditures on police to apprehend criminals as well as income redistribution are determined endogenously through majority voting we investigate how crime redistribution and police expenditures depend on characteristics of the underlying distribution of income earning abilities and on the apprehension technology our model accounts for the positive correlation between inequality and crime the positive correlation between expenditures on police and redistribution and the lack of correlation between crime and redistribution observed in u s data

finding default understanding the drivers of default on contracts with farmers organizations under the world food programme purchase for progress pilot during the past two decades food assistance policy has shifted toward local or regional food purchases and away from purchases from donor countries while most local and regional procurement occurs through hard tendering processes open to large scale firms and farms there is growing interest in identifying how and whether to procure from smallholder farmer organizations to date little is known about the drivers of successful contracting with farmers organizations fos we utilize data from the united nations world food programme purchase for progress pilot in three east african countries to predict defaults on contracts we examine four possible explanations country contexts fo characteristics prior experience with contracts and contract modalities and their relationship to local spot market prices the single most important predictor of default is the increase in market prices between contract approval and delivery yet while increases in market prices are linked to increases in default this relationship is decreasing in contract size indicating search costs associated with breaking contracts our findings yield both generalizable and context specific insights about whether and when procuring from smallholder farmers can be successfully integrated into the food assistance toolkit this article is protected by copyright all rights reserved

the distributional impact of a resource boom abstract sizeable export growth led by a booming natural resource extraction sector has recently been experienced in a number of countries this form of growth holds potentially important implications for the distribution of income and in this paper a simple general equilibrium trade model is presented which is aimed at exposing the effects of a resource boom on factor owners real incomes the analysis highlights the critical role played by the real exchange rate and also explores the consequences of a resource boom in the presence of real international capital flows and endogenous protection wherein one group of factor owners uses commercial policy to maintain the group members real incomes

contract farming smallholders and rural development in latin america the organization of agroprocessing firms and the scale of outgrower production abstract this paper demonstrates how contract farming functions as an economic institution and explores the causes of the observed variation in the scale of outgrower production in latin america we outline how market imperfections and transaction costs influence the decision of agroprocessing firms to contract out vertically integrate or use spot markets to obtain raw product the paper demonstrates how market conditions are likely to be associated with particular outgrower characteristics under contract farming an analysis of the mexican frozen vegetable industry illustrates determinants of successful and unsuccessful small scale contracting and suggests alternative policies to promote contract farming with smallholders

peasant household behaviour with missing markets some paradoxes explained a model of peasant household behavior under varying degrees of household specific food and labor market failures is constructed to show that these structural features can explain several well known patterns of peasant response which have often been attributed to peculiar motives presumed specific to peasants the model explains sluggish response to cash crops prices and high instability in perceived food and labor scarcities the key role of manufactured consumer goods prices in stimulating peasants effort in cash crops production the effectiveness of taxation as opposed to incentives in stimulating cash crops production and the key role of technological change in food production to enhance cash crop production results are obtained analytically in the case of one market failure and by numerical simulation with more than one

interlinked markets and the cash crop food crop debate in land abundant tropical agriculture the purpose of this article is to illustrate how such institutions do arise in the african context under certain preconditions it is argued that the lack of a land market due largely to a non capitalist conception of property rights over land 3 along with other conditions to be examined below leads to the failure of labor and private sector credit markets in response indigenous institutions have evolved to cope with the market failures

identifying the effect of unemployment on crime abstract in this paper we analyze the relationship between unemployment and crime using u s state data we estimate the effect of unemployment on the rates of seven felony offenses we control extensively for state level demographic and economic factors and estimate specifications that include state specific time trends state effects and year effects in addition we use prime defense contracts and a state specific measure of exposure to oil shocks as instruments for unemployment rates we find significantly positive effects of unemployment on property crime rates that are stable across model specifications our estimates suggest that a substantial portion of the decline in property crime rates during the 1990s is attributable to the decline in the unemployment rate the evidence for violent crime is considerably weaker however a closer analysis of the violent crime of rape yields some evidence that the employment prospects of males are weakly related to state rape rates

crime and unemployment in turbulent times we use the exceptional variation in municipality level unemployment in sweden during the 1990s to identify the effect of unemployment on crime our findings are as follows i there is a statistically and economically significant effect of general unemployment on the incidence of burglary auto theft and drug possession ii we find no evidence for the popular view that youth unemployment matters for crime iii prime aged unemployment is robustly correlated with main categories of youthful crimes a finding consistent with the idea that unstable life conditions of parents have adverse spillover effects on the life choices of their children jel j00 k4

globalization privatization and vertical coordination in food value chains in developing and transition countries food and agricultural commodity value chains in developing and transition countries have undergone tremendous changes in the past decades companies and property rights have been privatized markets liberalized and economies integrated into global food systems the liberalization and privatization initially caused the collapse of state controlled vertical coordination more recently private vertical coordination systems have emerged and are growing rapidly as a response to consumer demand for food quality and safety on the one hand and the farms production constraints caused by factor market imperfections in this article we 1 demonstrate the importance of these changes 2 discuss the implications for efficiency and equity and 3 provide empirical evidence on the effects in several developing and transition countries

governance and trade in fresh vegetables the impact of uk supermarkets on the african horticulture industry production of fresh vegetables for export has grown rapidly in a number of countries in sub saharan africa over the last decade this trade brings producers and exporters based in africa together with importers and retailers in europe large retailers in europe play a decisive role in structuring the production and processing of fresh vegetables exported from africa the requirements they specify for cost quality delivery product variety innovation food safety and quality systems help top determine what types of producers and processors are able to gain access to the fresh vegetables chain and the activities they must carry out the control over the fresh vegetables trade exercised by uk supermarkets has clear consequences for inclusion and exclusion of producers and exporters of differing types and for the long term prospects for the fresh vegetables industry in the two major exporting countries studied kenya and zimbabwe

transactions costs and agricultural household supply response we develop and estimate a model of supply response when transactions costs create a situation where some producers buy others sell and others do not participate in markets we present two rationales for why producing households may have different relationships to the market proportional and fixed transactions costs using data on mexican corn producers we estimate an empirical model that allows for separate tests of the significance of both types of transactions costs revealing that both fixed and proportional transactions costs matter for the estimation the results provide consistent estimates of supply elasticity and measures of the relative importance of factors determining both proportional and fixed transactions costs

economic reform and smallholder agriculture in tanzania a discussion of recent market liberalization road rehabilitation and technology dissemination efforts abstract this paper discusses the reforms affecting tanzania s small farm sector during 1984 1993 it focuses on changes in marketing and input supply including the revival of regional cooperative societies the ending of the state monopoly in food crop procurement and changes in the export crop sector efforts to rehabilitate the country s road network and the effects of institutional change on a technology dissemination program sasakawa global 2000 are also discussed the author concludes that improvements in the performance of the smallholder sector cannot be expected to follow automatically from a withdrawal of government

human capital and economic growth in a minimum wage economy an increased stock of physical capital within a brecher type minimum wage economy with skilled and unskilled labor may reduce national income in the short run however if capital accumulation stimulated the formation of human capital the long run level of national income can exceed its pregrowth level the conditions are derived under which such reversals occur it is also shown that correcting the distortions due to the minimum wage requires an additional instrument besides the economy wide employment subsidy a tax on the unskilled wage and an education subsidy are examined as possible second instruments copyright 1989 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

interdependence between cash crop and staple food international prices across periods of varying financial market stress abstractthis paper investigates the price dynamics between a selection of international staple food and cash crop futures prices this price interaction is particularly relevant for developing coun

household specific food price differentials and high value crop production in rural ghana using panel data from ghana we have examined the relationship between household specific producer consumer price differentials and rural household cropland allocation between food and high value crops we test the hypothesis that cereal price bands induce a shift of resources away from high value crop production making smallholders appear unresponsive to price incentives our results lend support to this hypothesis implying that a policy aiming at increasing farmers income through high value crop production may fail if hard and soft infrastructure does not improve in rural areas and if staple crop productivity does not increase significantly

why do small scale producers choose to produce under contract lessons from nontraditional vegetable exports from zimbabwe summary this article explores the motivations behind the decision of small scale producers to grow nontraditional vegetables under contract for export based on a survey of small scale producers in zimbabwe four factors are identified as motivating contracting namely market uncertainty indirect benefits e g knowledge acquisition income benefits and intangible benefits respondents are clustered according to the relative importance of these factors in their contracting decision four clusters are identified and related to the characteristics of these farmers including size of the farm amount of land devoted to export crops access to alternative markets and the proportion of family income derived from export crops the results suggest that there are systematic differences between farmers in their decisions to contract which needs to be recognized in contract design and management 2005 elsevier ltd all rights reserved

agricultural commercialization of karen hill tribes in northern thailand based on a random sample of 240 farm households in chiang mai province thailand this study shows that contrary to widespread belief karen farm households are well integrated into markets average levels of market integration are 31 for gross farm output 35 for variable inputs 49 for food consumption and 80 for net family income by estimating a two stage least squares 2sls regression model this study finds that integration into output markets is positively associated with a diversification of land use away from rice monoculture more intense contact with nearby urban centers and a greater number of roads connecting the village to the outside world controlling for these factors the distance to urban centers does not impede market integration distant villages are equally well integrated into output markets the study further finds that integration into output markets improves farm productivity and net per capita income concerns about market integration are discussed results have implications for thai policy makers who have recently placed increasing emphasis on the concept of sufficiency economy in order to promote the well being of rural people

does income inequality lead to more crime a comparison of cross sectional and time series analyses of united states counties abstract this paper estimates the effect of income inequality on crime in united states counties using both cross sectional and first differenced approaches income inequality is positively associated with crime rates in the cross section analysis but negatively associated with crime rates in the time series analysis

cash cropping and food crop productivity synergies or trade offs the case for promoting export oriented cash crops in africa has generally been based on their direct potential contribution to agricultural productivity and small farmer incomes a relatively neglected avenue of research concerns the synergistic effects that cash cropping can have on other household activities including food production the conventional view that cash crops compete with food crops for land and labour neglects the potential for cash crop schemes to make available inputs on credit management training and other resources that can contribute to food crop productivity which might otherwise not be accessible to farmers if they did not participate in cash crop programs this article builds on previous research by hypothesising key pathways by which cash crops may affect food crop activities and empirically measuring these effects using the case of cotton in gokwe north district in zimbabwe analysis is based on instrumental variable analysis of survey data on 430 rural households in 1996 results indicate that after controlling for household assets education and locational differences households engaging intensively in cotton production obtain higher grain yields than non cotton and marginal cotton producers we also find evidence of regional spill over effects whereby commercialisation schemes induce second round investments in a particular area that provide benefits to all farmers in that region regardless of whether they engage in that commercialisation scheme the study suggests that the potential spill over benefits for food crops through participation in cash crop programs are important to consider in the development of strategies designed to intensify african food crop production

the social performance and distributional consequences of contract farming an equilibrium analysis of the arachide de bouche program in senegal abstract this paper is an empirical analysis of the impact of a contract farming program in senegal we examine the access of poorer community members to contracts and the effect of the program on the income of participants the program performs very well on both counts participants and nonparticipants are indistinguishable by wealth measures and farmers increase their income substantially by participating in the program we attribute the former to the program s mobilization of local information through its use of village intermediaries permitting the substitution of social collateral for physical collateral and making the program more accessible to the poor

crime during the business cycle urban rural differences abstractdespite the abundant literature on how crime evolves over the business cycle no consensus has arisen whether crime increases or decreases during recessions the literature provides both po

farmer organization collective action and market access in meso america abstract farmer organization and collective action are often seen as key factors in enhancing farmers access to markets often too little attention is directed at a the most appropriate types of organization b whether organization makes less or more sense in the case of producers of an undifferentiated commodity or a higher value product c whether the public or private sector is best placed to support farmer organizations and d the conditions necessary for ensuring their economic viability research in mexico and central america explored these issues for commodity maize and high value vegetables respectively the benefits of farmer organization are more evident in the vegetable sector characterized by high transaction costs associated with market access however horticultural farmer organizations in honduras and el salvador include less than 5 of total horticultural producers this is possibly due to farmer organizations limited business skills and non replicable organizational models there is less incentive for maize farmers to organize to access output markets as the transaction costs are relatively low the benefits of maize farmer organization are clearer when it comes to accessing inputs such as credit seed and fertilizer farmer organization is a critical factor in making markets work for the poor but the role and timing of public and private investment in these organizations is poorly understood

international factor mobility minimum wage rates and factor price equalization a synthesis this paper examines the behavior of a small open economy facing perfectly elastic supply curves for some of its productive factors in particular the paper derives some comparative statics properties of such economies compares them with the properties of otherwise identical economies in which all factor prices are determined endogenously and investigates the relationship between factor price rigidities factor price equalization and the pattern of specialization among the new results which are proved it is shown that as more and more factor price rigidities are imposed on an economy it comes closer to a state of factor price equalization

supply chain differentiation contract agriculture and farmers marketing preferences the case of sweet pepper in thailand there is an emerging body of literature analyzing how smallholder farmers in developing countries can be linked to modern supply chains however most of the available studies concentrate on farm and farmer characteristics failing to capture details of institutional arrangements between farmers and traders moreover farmers preferences have rarely been considered here we address these gaps by analyzing different market channels for sweet pepper in thailand using data from a survey and choice experiment with farmers we find that there is a general preference for marketing options that do not involve a contract additional provision of inputs and credit can increase the attractiveness of contracts yet the most important factor for farmers is to personally know the buyer they deal with which may be related to issues of trust some policy implications are discussed

yield gap based poverty gaps in rural sub saharan africa summary given africa s challenge of feeding a growing population narrowing yield gaps is an efficient way of raising production under covariate constraints using household panel data from 21 regions in eight sub saharan african countries this article unravels the determinants of yield gaps it also tests the hypothesis that poverty gaps are increasing with yield gaps the results suggest that yield gaps are increasing with cultivated area that yield differences are reducing with fertilizer use particularly when combined with improved seeds in low production potential regions that poverty gaps are increasing with yield gaps particularly in low production potential regions

to specialize or diversify agricultural diversity and poverty dynamics in ethiopia recent agricultural development policies have begun to shift focus from the promotion of a few staple crops toward encouraging crop diversity the belief is that crop diversification is an effective strategy for dealing with a variety of issues including poverty alleviation however there is a lack of empirical evidence to justify these positions we contribute to filling this research gap by providing quantitative evidence on the impact of diversity in crop cultivation on household poverty using household panel data from ethiopia we develop a diversity index to measure the effect of crop diversity on poverty status to control for endogeneity and selection bias resulting from unobserved heterogeneity we utilize a recently developed parametric method for estimating dynamic binary response models with endogenous contemporaneous regressors our results provide evidence that households which grow a diverse set of crops are less likely to be poor than households that specialize in their crop production additionally crop diversity reduces the probability that a non poor household will fall into poverty and the probability that a poor household will remain in poverty we conclude that crop diversification is a viable way to deal with the exigencies of being poor

private enforcement capital and contract enforcement in transition economies the enforcement of contracts is necessary for efficient exchange and investment in economic activities there are many situations where public institutions are ineffective in enforcing contracts this is the case in economies in transition where public enforcement institutions themselves are being reformed under such conditions private mechanisms could enforce contracts external private enforcement is done by third parties e g strong arm private agents although such enforcement may be effective it may have unwanted externalities alternatively internal private enforcement can be done through the use of so called private enforcement capital i e private losses that result from breaching the contract these losses result directly from contract termination or non renewal and indirectly from reputational damage by designing contracts such that these private losses from contract breach outweigh potential benefits contracts can be made self enforcing in this article we first present a conceptual framework to interpret contracts and to analyze how the use of private enforcement capital can enforce contracts then we illustrate such internal private contract enforcement mechanisms with several case study examples of agri business contracting in transition countries where public enforcement fails

contracting out solutions political economy of contract farming in the indian punjab abstract this paper examines the rationale practice and problems of contract farming in vegetable crops in the agriculturally developed indian punjab which has faced the problem of sustainability of growth since the early 1980s it is found that agribusiness firms deal with relatively large producers and their contracts which are biased against the farmer perpetuate the existing problems of the farm sector such as high chemical input intensity and social differentiation contracting has however led to higher farm incomes and more employment for labor there seems to be an inherent contradiction in the objectives of the contracting parties and those of the local economy

the future of small farms new directions for services institutions and intermediation summary efficient pre and post harvest services are essential if small farms in high potential areas are to intensify production contribute to economic growth and reduce poverty they also matter if small farms in marginal areas are to manage their natural resource base in the face of growing population pressure and climate change difficulties that smallholders face in accessing services are reviewed showing how incentives for commercial delivery of services to smallholders differ between staple food traditional cash crop and high value product supply chains the major challenge in service delivery to smallholders in much of africa concerns coordination of service development and delivery different forms of intermediary institution for achieving such coordination are examined

impact of third party contract enforcement in agricultural markets a field experiment in vietnam we study the effect of alleviating the information asymmetry regarding product quality that is widespread in contracts between agricultural producers and buyers in developing countries opportunistic buyers may underreport quality levels to farmers to reduce the price that they have to pay in response farmers may curb investment thereby negatively affecting farm productivity in an experiment we entitle randomly selected smallholder dairy farmers in vietnam who are contracted by a large company to independently verify milk testing results results indicate that treatment farmers use 12 more inputs and they also increase their output significantly some wider research and policy implications are discussed

input control in agricultural production contracts tion problems there will be distortionary effects on industry output and returns from production will be distributed in a predictable way regardless of the underlying motivation for contract design the resulting distribution of returns and risks is likely to differ from the traditional spot market distribution understanding the incentives underlying the design of agricultural production contracts will aid in predicting their influence on the distribution of returns as their usage increases in addition to its practical importance the economic analysis of agricultural production contracts provides an opportunity to test contract theory empirically over the past twenty years contract theory or mechanism design has burgeoned as an area of theoretical analysis this growth in the theory has not been matched by an accompanying empirical literature there has been only a limited amount of empirical work in these areas primarily on auctions as well as executive compensation and franchising cf laffont ossard and vuong jensen and murphy and lafontaine agricultural production contracts provide an opportunity to test whether asymmetric information models have explanatory value i consider whether such models are sometimes observationally equivalent to other economic models and what research techniques will aid in distinguishing among explanations i address these issues in the context of a