smallholders land access in sub saharan africa a new landscape while scholars long recognized the importance of land markets as a key driver of rural non farm development and transformation in rural areas evidence on the extent of their operation and the nature of participants remains limited we use household data from 6 countries to show that there is great potential for such markets to increase productivity and equalize factor ratios while rental markets transfer land to land poor and labor rich producers their operation and thus impact may be constrained by policy restrictions their functioning may also be constrained by ill defined or insecure rights that may arise from failure to fully compensate existing rights in cases of expropriation a failure to implement more broadly land policies or to do so in a gender sensitive manner methodological and substantive conclusions are derived

the retail price of inequality abstract this paper studies the relation between a city s income distribution and its retail price level using panel data we find that an increase in the presence of lower middle income households relative to poor or upper income households is associated with lower prices our findings suggest that greater income inequality raises the prices that poor households face thus making it harder for them to invest in human capital

infrastructure and aggregate agricultural productivity international evidence a relationship has long been recognized between a country s agricultural development and its investment in infrastructure capital such as transportation and communication facilities that is not directly related to the agricultural production process the relevant literature spans adam smith s proposition that the division of labour is limited by the extent of the market the work of von thtinen numerous studies by historians and economic historians and the work of economists such as schultz kuznets wharton owens and johnston and kilby to mention a few despite the apparently widespread recognition and acceptance that a relationship exists between agricultural development and infrastructural development few if any empirical studies test this as a hypothesis and provide estimates of the magnitude of such a relationship 2 the aim of this paper is to utilize 1965 aggregate agricultural production data and the concept of the aggregate production function to study the effects of transportation and communication infrastructure on aggregate agricultural productivity the aggregate data come from 47 less developed countries ldcs and 19 developed countries dcs the sample countries are listed in the appendix the use of intercountry comparisons for development studies dates to clark and the pioneering work of kuznets and it has been exploited econometrically by chenery 3 an important contribution to the study of international agricultural productivity was made by hayami and ruttan who showed that an aggregate agricultural production function that accounts for intercountry differences in resource endowments technical modern inputs and human capital can explain a large proportion of the variation in aggregate agricultural output across more and less developed agricultures 4 evenson and kislev modified hayami and ruttan s model by including a variable measuring each country s investment in agricultural research 5 essentially the same

the impact of agricultural research in africa aggregate and case study evidence abstract this paper presents case study results and aggregate data to evaluate the impact of research in african agriculture of 32 case studies all but eight report annual returns over 20 and many are far higher with most gains arising in the late 1980s and 1990s spurred by policy reforms and changing incentives these innovations have led to sustained growth in aggregate cereal crop yields since 1985 africa s belated green revolution is based on new varieties often with early maturation for drought escape complemented by new management techniques typically labor intensive efforts to conserve soil moisture and build soil fertility

price indexes inequality and the measurement of world poverty i discuss the measurement of world poverty and inequality with particular attention to the role of purchasing power parity ppp price indexes from the international comparison project global inequality increased with the latest revision of the icp and this reduced the global poverty line relative to the us dollar the recent large increase of nearly half a billion poor people came from an inappropriate updating of the global poverty line not from the icp revisions even so ppp comparisons between widely different countries rest on weak theoretical and empirical foundations i argue for wider use of self reports from international monitoring surveys and for a global poverty line that is truly denominated in us dollars

farm productivity and rural poverty in india armed with new data we return to an old question from the pages of this journal to what extent do india s rural poor share in agricultural growth combining data from 24 household sample surveys spanning 35 years with other sources we estimate a model of the joint determination of consumption poverty measures agricultural wages and food prices we find that higher farm productivity brought both absolute and relative gains to poor rural households a large share of the gains was via wages and prices though these effects took time the benefits to the poor were not confined to those near the poverty line

nonfarm income diversification and household livelihood strategies in rural africa concepts dynamics and policy implications abstract asset activity and income diversification lie at the heart of livelihood strategies in rural africa this paper introduces a special issue on the topic income diversification and livelihoods in rural africa cause and consequence of change we concentrate on core conceptual issues that bedevil the literature on rural income diversification and the policy implications of the empirical evidence presented in this special issue

on analyzing the world distribution of income consideration of world inequality should cause reexamination of the key concepts underlying the welfare approach to measuring income inequality and its relation to measuring poverty this reexamination leads to exploration of a new measure that allows poverty and inequality to be considered in the same framework incorporates different approaches to measuring inequality and allows varied expressions of the cost of inequality applied to the world distribution of income for 1820 1992 the new measure provides different perspectives on the evolution of global inequality

measuring global poverty why ppp methods matter abstract we present theory and evidence to suggest that in the context of analyzing global poverty the eks approach to estimating purchasing power parities yields more appropriate international comparison of real incomes than the geary khamis approach our analysis of the 1996 and 2005 international comparison project data confirms that the geary khamis approach substantially overstates the relative incomes of the world s poorest nations and this leads to misleading comparisons of poverty across regions and over time the eks index of real income is much closer to being a true index of economic welfare and is therefore preferred for assessment of global poverty

is a slowdown in agricultural productivity growth contributing to the rise in commodity prices a slowdown in the rate of agricultural productivity growth is thought by many observers to be contributing to the recent rise in agricultural prices in this article i decompose sources of output growth in global agriculture into aggregate input and total factor productivity tfp components and examine whether productivity growth slowed substantially in the years leading up to the recent rise in commodity prices contrary to widely held perceptions i find no evidence of a general slowdown in sector wide agricultural tfp at least through 2006 if anything the growth rate in agricultural tfp accelerated in recent decades however the results do show a slowdown in the growth of agricultural investment accelerating tfp growth largely offset decelerating input growth to keep the real output of global agriculture growing at about 2 per year since the 1960s regionally however agricultural productivity performance has been uneven these findings have important implications for the appropriate supply side policy response to the current agricultural price crisis

offshore outsourcing of services an evolutionary perspective abstract offshore outsourcing is gaining increasing importance and attention in both theory and practice the purpose of this research is to use nine in depth case studies to analyze the evolution of offshore services outsourcing with regard to how expectations and governance structures change over time five testable propositions are presented building on institutional theory transaction cost and resource based perspectives the cases demonstrate that offshore outsourcing is initiated because of increasing internal and external pressure to conform and reduce costs moreover companies chase efficiency improvements in other geographic locations but after reducing costs companies discover more strategic benefits such as the potential to increase quality and market share importantly as buyer supplier relationships move from tactical to more strategic expectations and governance structures change

using evidence of household income diversification to inform study of the rural nonfarm labor market in africa abstract the labor market literature in developing countries has seldom drawn on the studies of rural household income diversification this paper draws on such studies to inform future study of the rural nonfarm labor market in africa the review of evidence provides some surprising departures from traditional images of nonfarm activities of rural households among the most striking is the dominant importance in the majority of case study areas of nonfarm wage labor as compared to self employment of nonfarm sector earnings as compared to farm sector wage earnings and of local nonfarm earnings as compared to migration earnings the most worrying finding was the poor distribution of nonfarm earnings in rural areas despite the importance of these earnings to food security and farm investments this poor distribution implies significant entry barriers and market segmentation it is probable that this will lead over time to an increasingly skewed distribution of land and other assets in rural africa

pareto models top incomes and recent trends in uk income inequality i determine uk income inequality levels and trends by combining inequality estimates from tax return data for the rich and household survey data for the non rich taking advantage of the better coverage of top incomes in tax return data which i demonstrate and creating income variables in the survey data with the same definitions as in the tax data to enhance comparability for top income recipients i estimate inequality and mean income by fitting pareto models to the tax data examining specification issues in depth notably whether to use pareto i or pareto ii generalized pareto models and the choice of income threshold above which the pareto models apply the preferred specification is a pareto ii model with a threshold set at the 99th or 95th percentile depending on year conclusions about aggregate uk inequality trends since the mid 1990s are robust to the way in which tax data are employed the gini coefficient for individual gross income rose by around 7 or 8 between 1996 7 and 2007 8 with most of the increase occurring after 2003 4 the corresponding estimate based wholly on the survey data is around 5

measuring the trends in inequality of individuals and families income and consumption we present evidence on the level of and trend in inequality from 1985 2010 in the united states using disposable income and consumption for a sample of individuals from the consumer expenditure ce survey differing from the findings in other recent research we find that the trends in income and consumption inequality are broadly similar between 1985 and 2006 but diverge during the great recession with consumption inequality decreasing and income inequality increasing given the differences in the trends in inequality in the last four years using both income and consumption provides useful information

transition in sub saharan africa agriculture urbanization and income growth abstract econometric analysis of some 40 years of data has provided mixed results because of the defects of the data and because there are some relatively sudden structural economic shifts an important shift is when agricultural labor ceases to grow now happening in sub saharan africa ssa a model of the interrelationship over time of the rural mainly agricultural sector and the urban mainly manufacturing and service sector is proposed each provides a market to the other growth in both requires investment but of distinctly different types their interaction results in an s shaped curve many ssa countries are in the acceleration phase and its agriculture particularly in semi arid areas is increasingly oriented to the growing home market case studies show farmers have invested and adopted new technologies but the transition to an urbanized economy has been hindered by poor policies the current need is for appropriate investments and policies to develop the productivity of the urban sectors so that they can continue to stimulate agriculture and provide jobs for those who are leaving farming

linking smallholders to markets determinants and impacts of farmer collective action in kenya summary this article investigates determinants and impacts of cooperative organization using the example of smallholder banana farmers in kenya farmer groups are inclusive of the poor although wealthier households are more likely to join employing propensity score matching we find positive income effects for active group members yet price advantages of collective marketing are small and high value market potentials have not yet been tapped beyond prices farmer groups function as important catalysts for innovation adoption through promoting efficient information flows we discuss the conditions under which collective action is useful and through what mechanisms the potential benefits emerge

sustainable competitive advantage combining institutional and resource based views this article suggests that the context and process of resource selection have an important influence on firm heterogeneity and sustainable competitive advantage it is argued that a firm s sustainable advantage depends on its ability to manage the institutional context of its resource decisions a firm s institutional context includes its internal culture as well as broader influences from the state society and interfirm relations that define socially acceptable economic behavior a process model of firm heterogeneity is proposed that combines the insights of a resource based view with the institutional perspective from organization theory normative rationality institutional isolating mechanisms and institutional sources of firm homogeneity are proposed as determinants of rent potential that complement and extend resource based explanations of firm variation and sustainable competitive advantage the article suggests that both resource capital and institutional capital are indispensable to sustainable competitive advantage 1997 john wiley sons ltd

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

linkages between service sourcing decisions and competitive advantage a review propositions and illustrating cases abstract this paper focuses on linkages between strategic service sourcing decisions and the competitiveness of business firms it responds to calls for more research focusing on the outcomes of services and the nature and durability of service benefits and contributes with relatively comprehensive detailed and managerially oriented knowledge regarding the linkages between service sourcing and competitive advantage the paper reviews the literature and develops propositions regarding how different make or buy decisions supply base structures and types of buyer seller relationships influence the possibility of simultaneously maintaining positive bonds with customers keeping costs low and developing valued and differentiated offerings the practical applications of the propositions are illustrated with four case studies

measuring poverty in a growing world or measuring growth in a poor world the extent to which growth reduces global poverty has been disputed for 30 years although there are better data than ever before controversies are not resolved a major problem is that consumption measured from household surveys which is used to measure poverty grows less rapidly than consumption measured in national accounts in the world as a whole and in large countries particularly india china and the united states in consequence measured poverty has fallen less rapidly than appears warranted by measured growth in poor countries one plausible cause is that richer households are less likely to participate in surveys but growth in the national accounts is also upward biased and consumption in the national accounts contains large and rapidly growing items that are not consumed by the poor and not included in surveys so it is possible for consumption of the poor to grow less rapidly than national consumption without any increase in measured inequality current statistical procedures in poor

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

income mobility profiles abstract an income mobility profile is a graphical tool to portray income mobility and identify the association between individual movements and initial status which despite its importance when assessing the social relevance of mobility is often discounted by aggregate mobility indices

global appropriation of resources causes high international material inequality growth is not the solution abstract high levels of resource consumption cause detrimental environmental change very low consumption may fail to meet basic needs a major challenge for a sustainability transformation is to reduce inequalities and achieve a globally sustainable level of resource flows by providing access to resources beyond national boundaries trade could either lead to more equal international distribution or aggravate unequal distribution of material resources for a sample of 173 countries between 1993 and 2010 we studied the role of trade and the upstream global appropriation of resources in international material inequality until the turn of the century per capita material extraction was as unequally distributed as material consumption extraction plus imports minus exports import and export flows as such do not greatly affect inequality the global appropriation of materials associated with trade however decisively increased inequality until 2000 in the 21st century decreasing inequality coincided with a sharp rise in global material extraction appropriated by high and upper middle income countries such growth led reduction of inequality is not environmentally sustainable it has until now been enabled by global trade patterns distributing resources in a way that can never be globally inclusive putting especially the world s poorest countries at risk

rural livelihood diversification in sub saharan africa a literature review abstractthis article provides a comprehensive review of the literature on the nature and evolution of rural livelihood diversification in sub saharan africa and the situation regarding smallholders it reveals mixed findings about the causes and consequences of livelihood diversification on rural smallholders adopting this strategy a lot of evidence from the literature suggests that it is relatively better off smallholders with sufficient assets who achieve successful livelihood diversification mainly by exploiting opportunities and synergies between farm and nonfarm activities because of asset constraints increase in incomes and wealth based on livelihood diversification has not yet benefitted the large majority of smallholders

inequality in indonesia what can we learn from top incomes abstract using taxation and household survey data this paper estimates top income shares for indonesia during 1920 2004 our results suggest that top income shares grew during the 1920s and 1930s but fell in the post war era we observe a sharp rise in top income shares during the late 1990s coinciding with the 1997 98 economic crisis where comparable data are available top income shares in indonesia are generally higher than in other countries a finding that is at odds with the view that indonesia is a relatively egalitarian society this suggests that top income shares may provide a more complete picture of developing country inequality in comparative perspective

the developing world is poorer than we thought but no less successful in the fight against poverty a new data set on national poverty lines is combined with new price data and almost 700 household surveys to estimate absolute poverty measures for the developing world we find that 25 of the population lived in poverty in 2005 as judged by what poverty typically means in the world s poorest countries this is higher than past estimates substantial overall progress is still indicated the corresponding poverty rate was 52 in 1981 but progress was very uneven across regions the trends over time and regional profile are robust to various changes in methodology though precise counts are more sensitive

retrospectives engel curves engel curves describe how household expenditure on particular goods or services depends on household income german statistician ernst engel 1821 1896 was the first to investigate this relationship systematically in an article published about 150 years ago the best known single result from the article is engel s law which states that the poorer a family is the larger the budget share it spends on nourishment we revisit engel s article including its context and the mechanics of the argument because the article was completed a few decades before linear regression techniques were established and income effects were incorporated into standard consumer theory engel was forced to develop his own approach to analyzing household expenditure patterns we find his work contains some interesting features in juxtaposition to both the modern and classical literature for example engel s way of estimating the expenditure income relationship resembles a data fitting technique called the regressogram that is nonparametric in that no functional form is specified before the estimation moreover engel introduced a way of categorizing household expenditures in which expenditures on commodities that served the same purpose by satisfying the same underlying want were grouped together this procedure enabled engel to discuss the welfare implications of his results in terms of the smithian notion that individual welfare is related to the satisfaction of wants at the same time he avoided making a priori assumptions about which specific goods were necessities assumptions which were made by many classical economists like adam smith finally we offer a few thoughts about some modern literature that builds on engel s research

unbundling the structure of inertia resource versus routine rigidity i work to unbundle the structure of inertia into two distinct categories resource rigidity failure to change resource investment patterns and routine rigidity failure to change organizational p

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

six characters and a few more in search of an author how to rescue rural development before it s too late rural development has not received the priority and attention warranted by the present and future concentration of poverty in rural areas is this perhaps because rural development agencies present conflicting narratives a framework is presented within which to answer that question and is then applied to the recent policy statements of the european union eu food and agriculture organization fao international fund for agricultural deveopment ifad and the world bank each policy statement is compelling in its own way but the strategies are not consistent a narrative is needed which recognizes the rapid pace of change in rural areas acknowledges the need for diversification out of agriculture builds market institutions for growth and works effectively within the current international consensus on poverty reduction emphasising opportunity empowerment and security

a new data set measuring income inequality this article presents a new data set on inequality in the distribution of income the authors explain the criteria they applied in selecting data on gini coefficients and on individual quintile groups income shares comparison of the new data set with existing compilations reveals that the data assembled here represent an improvement in quality and a significant expansion in coverage although differences in the definition of the underlying data might still affect inter temporal and international comparability based on this new data set the authors do not find a systematic link between growth and changes in aggregate inequality they do find a strong positive relationship between growth and reduction of poverty

on the microeconomics of food and malnutrition under endogenous discounting abstract this paper explores the microeconomics and dynamics of food and nutrition it examines the linkages between malnutrition and the incentive to invest and accumulate capital the analysis focuses on a dynamic model where preferences about the future depend on nutrition and health situations of malnutrition cover both ends of the spectrum from nutrient deficiency to obesity the model involves preferences that are not time additive and exhibit endogenous discounting this provides a framework to investigate the factors affecting consumption and investment behavior the adverse investment incentives of malnutrition are examined

the limitations of decentralized world redistribution an optimal taxation approach abstract a centralized scheme of world redistribution that maximizes a border neutral social welfare function subject to the disincentive effects it would create generates a drastic reduction in world consumption inequality dropping the gini coefficient from 0 69 to 0 25 in contrast an optimal decentralized i e with no cross country transfers redistribution has a miniscule effect on world income inequality thus the traditional public finance concern about the excess burden of redistribution cannot explain why there is so little world redistribution actual foreign aid is vastly lower than the transfers under the simulated world income tax suggesting that voluntary world transfers subject to a free rider problem produces an outcome that is consistent with rich countries such as the united states either placing a much lower value on the welfare of foreigners or else expecting that a very significant fraction of cross border transfers is wasted the product of the welfare weight and one minus the share of transfers that are wasted constitutes the implicit weight that the united states assigns to foreigners we calculate that value to be as low as 1 2000 of the value put on the welfare of an american suggesting that u s policy is consistent with social preferences that place essentially no value on the welfare of the citizens of the poorest countries or that implicitly assumes that essentially all transfers are wasted

land tenure climate and risk management abstract we analyze to what extent climate conditions affect the prevalence of sharecropping as a form of traditional land tenure we investigate how sharecropping tenure is related to climate risk and how it interacts with fertilizer use and livestock ownership that both influence production risk we first develop a stylized theoretical model to illustrate the role of climate for land tenure and production our empirical analysis is based on more than 9000 households with considerable heterogeneity in climate conditions across several african countries we find that farmers in areas with low precipitation are more likely to be sharecroppers we further find evidence for risk management interaction effects as sharecropping farmers are less likely to own livestock and more likely to use fertilizer in economies where formal kinds of insurance are unavailable sharecropping thus functions as a form of insurance and reduces the need for potentially costly risk management strategies

on food security and the economic valuation of food the paper presents an economic evaluation of food and the cost of food insecurity building on behavioral regularities of consumer behavior the analysis estimates the benefit of food at the individual level and at the world level it finds an inverted u relationship between food benefit and income at the individual level the food benefit income ratio starts at 0 under extreme poverty increases with income to reach a maximum of 4 4 when income per capita is around 13 000 and then declines slowly as income rises the paper shows very large aggregate net benefit of food the analysis also evaluates the cost of food insecurity it shows that aversion to food insecurity is pervasive the coefficient of relative risk aversion to food insecurity being around 2 7 the analysis evaluates empirically the cost of food insecurity we report the cost of food insecurity under alternative scenarios documenting that it can be large in situations of exposure to significant downside risk

principal challenges confronting smallholder agriculture in sub saharan africa summary this paper uses small scale farm survey data from five countries of eastern and southern africa to highlight four under appreciated issues i how land distribution patterns constrain the potential of crop technology and input intensification to enable many small farms to escape from poverty ii why most smallholders are unable to produce more than a marginal surplus or participate meaningfully in commodity markets iii why most farmers are directly hurt by higher grain prices and iv why the marketed agricultural surplus is exceedingly concentrated among a small group of relatively large smallholders policy and public investment options are reviewed in the light of these findings there is no one future for small farms in africa much depends on government policy and investment decisions

true world income distribution 1988 and 1993 first calculation based on household surveys alone the paper derives world income or expenditure distribution of individuals for two years 1988 and 1993 it is the first paper to calculate world distribution for individuals based entirely on household survey data from 91 countries and adjusted for differences in purchasing power parity between the countries measured by the gini index inequality increased from an already very high 63 in 1988 to 66 in 1993 the increase was driven more by rising differences in mean incomes between the countries than by rising inequalities within countries the most important contributors were rising urban rural differences in china and slow growth of rural incomes in south asia compared to several large developed market economies

the world distribution of income falling poverty and convergence period we estimate the world distribution of income by integrating individual income distributions for 138 countries between 1970 and 2000 country distributions are constructed by combining national accounts gdp per capita to anchor the mean with survey data to pin down the dispersion poverty rates and head counts are reported for four specific poverty lines rates in 2000 were between one third and one half of what they were in 1970 for all four lines there were between 250 and 500 million fewer poor in 2000 than in 1970 we estimate eight indexes of income inequality implied by our world distribution of income all of them show reductions in global inequality during the 1980s and 1990s

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

estimating the scale and geography of global poverty now and in the future how much difference do method and assumptions make summary estimates of the historic and future scale and location or geography of global poverty by income expenditure have a long and contentious history in recent projections made on global poverty methods and assumptions vary so widely it is impossible to compare studies in a systematic way even on their estimates of current poverty in light of this we discuss the methodological issues arising and use a custom built model to provide a new consistent set of long run estimates of global poverty to show the impact of different methods and assumptions on the scale and location of global poverty

feeding africa s cities the case of the supply chain of teff to addis ababa abstracturbanization is quickly increasing in africa raising important questions on how food value chains to cities function and what the implications of urban growth are for the local food trade and farm sector we study the rural urban value chain of teff in ethiopia by value its most important staple value chain relying on unique large scale surveys at different levels in this value chain we find in contrast to conventional wisdom that value chains are relatively short and that average farmers obtain a high share about 80 of the final consumer price in the major terminal market addis ababa we further find that producer prices decline in line with transportation costs the farther farmers live from the city that seasonal price movements are rather small and that average stock release by farmers is smooth over the year

why has economic growth been more pro poor in some states of india than others abstract we use 20 household surveys for india s 15 major states spanning 1960 1994 to study how the sectoral composition of economic growth and initial conditions interact to influence how much growth reduced consumption poverty the elasticities of measured poverty to farm yields and development spending did not differ significantly across states but the elasticities of poverty to urban and rural non farm output varied appreciably and the differences were quantitatively important to the overall rate of poverty reduction states with higher elasticities did not experience higher rates of non farm growth the non farm growth process was more pro poor in states with initially higher literacy higher farm productivity higher rural living standards relative to urban areas lower landlessness and lower infant mortality

linking product and process innovations and modes of international sourcing in global competition a case of foreign multinational firms in increasingly complex global competition multinational firms u s and foreign alike have stepped up international sourcing of components and finished products to serve various markets since an increasing portion of global competition is shaped by european and japanese multinational firms with due emphasis on product quality and manufacturing it is an opportune time to examine the like among their product development manufacturing and sourcing activities those european and japanese multinational firms marketing products in the united states are chosen as subjects of this study

positional deprivation and support for radical right and radical left parties we explore how support for radical parties of both the left and right may be shaped by what we call positional deprivation where growth in income of individuals at a given point in the income distribution is outpaced by income growth elsewhere in that distribution we argue that positional deprivation captures the combination of over time and relative misfortune that can be expected to distinctly spur support for radical left and right parties we explore this possibility by matching new measures of positional deprivation to individual level survey data on party preferences in 20 european countries from 2002 to 2014 we find that positional deprivation is robustly correlated with supporting radical populist parties first positional deprivation generally measured as average income growth across deciles of a country s income distribution minus a respondent s own decile s growth is associated with respondents retreat from mainstream parties and with support for both radical right and particularly radical left parties second positional deprivation relative to the highest and the lowest ends of the income spectrum play out differently for radical right and for radical left support a respondent s positional deprivation relative to the wealthiest decile s growth in his or her country tends to spur support for radical left but not radical right parties in contrast positional deprivation relative to the poorest decile s growth in a respondent s country tends to spur support for radical right but not left parties the results suggest that the combination of over time and relative economic misfortune may be key to how economic experience shapes radical backlash of the left and right

top incomes in the long run of history a recent literature has constructed top income shares time series over the long run for more than twenty countries using income tax statistics top incomes represent a small share of the population but a very significant share of total income and total taxes paid hence aggregate economic growth per capita and gini inequality indexes are sensitive to excluding or including top incomes we discuss the estimation methods and issues that arise when constructing top income share series including income definition and comparability over time and across countries tax avoidance and tax evasion we provide a summary of the key empirical findings most countries experience a dramatic drop in top income shares in the first part of the twentieth century in general due to shocks to top capital incomes during the wars and depression shocks top income shares do not recover in the immediate postwar decades however over the last thirty years top income shares have increased substantially in english speaking countries and in india and china but not in continental european countries or japan this increase is due in part to an unprecedented surge in top wage incomes as a result wage income comprises a larger fraction of top incomes than in the past finally we discuss the theoretical and empirical models that have been proposed to account for the facts and the main questions that remain open

the impact of farm input subsidies on maize marketing in malawi abstract this paper investigates the effects of subsidised fertilizer on marketing of maize in malawi it uses the nationally representative two wave integrated household panel survey ihps data of 2010 and 2013 the results suggest that subsidised fertilizer on average increases farmers maize market participation as sellers total quantity of maize sold and maize commercialisation in addition participation in subsidised fertilizer programme is found to increase the probability of farmers to be net sellers and increases net quantity of maize sold however the study finds no evidence of effect on net quantity of maize bought and on household maize self sufficiency these results suggest that the farm input subsidy programme has contributed toward an increased level of maize market supply engagement for small farmers and in this sense the policy has the potential to provide the wider external benefits furthermore the results have implication on the sustainability of the subsidy programme policy formulation and design of programmes for the agricultural sector and small farmers in developing countries

stabilizing food markets in eastern and southern africa a major challenge for agricultural policy in africa is how to address the market instability related causes of low farm productivity and food insecurity this paper highlights structural changes affecting the behavior of food markets in eastern and southern africa and discusses their implications for the design of strategies to stabilize food prices these changes include 1 an increasing trend in maize prices toward import parity levels reflecting an emerging structural maize deficit in much of the region 2 increasingly diversified food consumption patterns in both rural and urban areas 3 highly concentrated marketed maize surplus which have largely unrecognized implications for the magnitude of price risk faced by most farm households and 4 the strategic interactions between private and public marketing actors leading in some cases to heightened market instability and food crises in the prevailing dual market environment now characterizing most of the region greater coordination transparency and consultation between private and public market actors is needed to achieve reasonable levels of food price stability and predictability

resource rents redistribution and halving global poverty the resource dividend summary this paper considers the proposal that each country distributes its resource rents directly to citizens as a universal and unconditional cash transfer or resource dividend and estimates its potential impact on global poverty for the years 2000 06 using a global dataset on resource rents and the distribution of income i find that if every developing country implemented the policy then the number of people living below 1 a day would be cut by between 27 and 66 depending on the year and the assumptions made looking ahead poverty could be better than halved as long as commodity prices do not drop below their 2004 level

the next wave of globalization relocating service provision to india summary services offshoring to india has grown dramatically in the last 10 years it is linked to the earlier expansion of indian software services exports but has its own dynamic and workforce although domestic firms were early entrants mncs are central actors already some work done in india resembles that done in developed countries to explain the dynamism and complexity of offshoring a taxonomy of market participants is presented offshoring by small entrepreneurial us firms is highlighted as an emerging phenomenon the conclusion argues that market entry by other developing countries is possible

health nutrition and economic development the relationship between health and economic development is explored focusing on nutrition based health indicators the spotlight is placed on the inter related feedbacks between the influence of health on productivity on one hand and the influence of income on health status on the other disentangling causality in these relationships has preoccupied much of the literature we evaluate different empirical strategies that have been adopted and assess the results there is now a body of evidence based on careful empirical studies that demonstrates a causal relationship between health and labor productivity there is also evidence that at least among the very poor additional income is spent on improved nutrition there are two issues that have received little attention although we argue they are likely to be very important first measurement of health is discussed in detail evidence is presented on how taking into account differences in the extent of measurement error is critical for interpreting the impact of health on wages the same theme emerges in studies of the effect of income on health specifically calorie intake the key role of non linearities in these relationships is highlighted and we demonstrate that a good deal of the variation in estimates of income elasticities of demand for calories can be ascribed to the role of measurement and functional form authors

inequality among world citizens 1820 1992 this paper investigates the distribution of well being among world citizens during the last two centuries the estimates show that inequality of world distribution of income worsened from the beginning of the 19th century to world war ii and after that seems to have stabilized or to have grown more slowly in the early 19th century most inequality was due to differences within countries later it was due to differences between countries inequality in longevity also increased during the 19th century but then was reversed in the second half of the 20th century perhaps mitigating the failure of income inequality to improve in the last decades jel d31 f0 n0 o0

a strategic needs perspective on operations outsourcing and other inter firm relationships abstract this paper considers two issues the formation of inter firm relationships and the choice of governance form these have been widely investigated in both the strategic management and operations management fields this paper contributes to the literature in three ways first we address why firms enter inter firm relationships by hypothesizing that managers enter them to pursue three strategic needs that is efficiency effectiveness knowledge learning and global market access our first contribution evidences the relationship between the above strategic needs and a number of operational objectives that managers normally pursue in an inter firm relationship second we hypothesize how the achievement of the above strategic needs influences the choice of governance form third we compare our framework with the operations management approach to strategic networks by evidencing similarities between the two approaches and showing that managers pursue a similar approach when they face inter firm agreement issues whether agreements are supply chain or strategy oriented we empirically test our framework using secondary data consisting of 95 inter firm agreements our findings largely support the theoretical predictions and also have important practical implications first our results offer managers practice suggestions on what kinds of objectives can be pursued together in inter firm relationships to achieve specific strategic needs and which governance form is most suitable depending on the strategic need in question second we consider the strategic reasoning concerning inter firm relationship management and some engineering issues such as time and quality objectives that while largely considered in the operations management literature are often neglected in the strategic management field

social issues in supply chains capabilities link responsibility risk opportunity and performance abstract social issues in the supply chain are defined as product or process related aspects of operations that affect human safety welfare and community development drawing from related literatures basic constructs related to capabilities and risk are defined and used to underpin case research in five multinational firms this data extended our understanding of three key social management capabilities monitoring collaboration and innovation moreover the field research revealed four key linkages that detail how managers actively can work toward mitigating social risks creating new opportunities and improving firm performance collectively these capabilities and linkages establish the basis for an integrative framework and five research propositions

differences in relative prices and international differences in growth rates the new growth literature following paul m romer 1986 and robert e lucas jr 1988 has formulated models in which growth rates can differ systematically across countries a large empirical literature has used cross sectional techniques to examine the cause of international differences in growth rates this paper examines whether this work has used data which have been constructed in such a way as to introduce inadvertently a spurious correlation between growth and income levels this effect occurs because relative prices evolve because of different rates of technological progress in different industries many of the new growth models assume single goods or goods produced by the same technology so this phenomenon has so far escaped analysis if technological progress is more rapid in some sectors than others relative prices will change during the process of development the change of relative prices has two effects on measured growth rates first the choice of base prices affects the growth rate this phenomenon is sometimes called the gerschenkron effect second using any base prices or weights introduces a spurious correlation between income and growth less developed countries would tend to have lower growth rates not because they grew more slowly but because of data construction techniques for the sake of simplicity these phenomena will be called the gerschenkron or the level effect and the spurious correlation effect 3 this paper examines the international comparison program icp and the penn world tables pwt which are based on the icp the penn world tables are the data most widely used in empirical studies of international differences in economic growth both the icp and pwt use international prices to adjust for differences in the purchasing power of currencies these prices most closely resemble hungarian prices using such prices tends to produce time series with lower growth rates than those in the national accounts for countries less developed than hungary conversely the growth rates would be higher for countries more developed than hungary however the growth rates of poorer countries are not systematically lower in the penn world tables the paper examines why the growth rates are not distorted and makes some specific recommendations for data construction and use virginia polytechnic institute and state university blacksburg va 24061 0316 part of this work was supported by a grant from the institute of international studies at brown university and by a summer internship at the division of international finance at the federal reserve board i am grateful to peter garber david weil oded galor and anonymous referees for helpful comments alan heston and robert summers have also helped me understand icp and pwt methodology of course i alone am responsible for any mistakes in this paper iexamples include steve dowrick and duc tho nguyen 1989 robert j barro 1991 j bradford de long and lawrence h summers 1991 and n gregory mankiw et al 1992 2a series of papers by christina d romer 1986a b 1989 has already emphasized the importance of data construction techniques in another context 3there is a third effect a real acceleration effect caused by shifting consumption patterns and the reallocation of resources between sectors growth accountants such as angus maddison 1987 adjust estimates of total factor productivity for this sort of shift william j baumol et al 1989 have also referred to this phenomenon for an analysis in terms of a simple multisector solow model see nuxoll 1992a

distributional effects of maize self sufficiency in zimbabwe implications for pricing and trade policy abstract maize self sufficiency has normally been an explicit policy goal throughout eastern and southern africa because of the perception that it could be achieved at prices below import parity and that it contributes to rural income growth however this analysis based on household survey data from zimbabwe and the results of an econometrically based simulation model indicates that a pricing policy geared towards maize self sufficiency would mainly benefit a small set of well off farmers and require either greater subsidies or higher prices to consumers many of whom are low income rural farmers in low rainfall areas the broader implications of this analysis are that even if the producer price needed for self sufficiency is below import parity the pursuit of food self sufficiency may inflate food costs and exacerbate rural and urban food insecurity compared to a self rellance policy involving imports

is there curvature in the slutsky matrix d o the poor substitute among commodities more flexibly than the rich when relative prices change even when compensated for the income effects of the price changes is it necessary to add a third dimension to the slutsky substitution matrix to identify household income in short do the terms of the slutsky elasticity matrix curve smoothly from poor households to rich households in such a way that equation 1 is meaningful

dollar a day revisited the article presents the first major update of the international 1 a day poverty line proposed in world development report 1990 poverty for measuring absolute poverty by the standards of the world s poorest countries in a new and more representative data set of national poverty lines a marked economic gradient emerges only when consumption per person is above about 2 00 a day at 2005 purchasing power parity below this the average poverty line is 1 25 which is proposed as the new international poverty line the article tests the robustness of this line to alternative estimation methods and explains how it differs from the old 1 a day line

optimal food price stabilisation policy this paper proposes a framework for designing optimal food price stabilisation policies in a self sufficient developing country it uses a rational expectations storage model with risk averse consumers and incomplete markets government stabilises food prices by carrying public stock and by applying a state contingent subsidy tax to production the policy rules are designed to maximise intertemporal welfare the optimal policy under commitment crowds out all private stockholding activity by removing the profit opportunity from speculation the countercyclical subsidy tax to production helps price stabilisation by subsidising production in periods of scarcity and by taxing it in periods of glut it contributes little to welfare gains most of which come from stabilisation achieved through public storage

world food demand long term projections of global food demand are heavily dependent on which functional form of the food demand equation is used given that real incomes can change substantially over the long term key elements are the dependence of the income elasticity on income which ensures that the food budget share always lies within the 0 1 range and the role of income inequality this article analyzes these issues proposes a new functional form that deals with them and presents estimates of income and price elasticities for food in 138 countries copyright 2012 oxford university press

the politics and economics of offshore outsourcing abstract this paper reviews the political uproar over offshore outsourcing connected with the release of the economic report of the president erp in february 2004 examines the differing ways in which economists and non economists talk about offshore outsourcing and assesses the empirical evidence on the importance of offshore outsourcing in accounting for the weak labor market from 2001 to 2004 even with important gaps in the data the empirical literature is able to conclude that offshore outsourcing is unlikely to have accounted for a meaningful part of the job losses in the recent downturn or contributed much to the slow labor market rebound the empirical evidence to date while still tentative actually suggests that increased employment in the overseas affiliates of us multinationals is associated with more employment in the us parent rather than less

world welfare is rising estimation using nonparametric bounds on welfare measures abstract i take a new approach to measuring world inequality and welfare over time by constructing robust bounds for these series instead of imposing parametric assumptions to compute point estimates i derive sharp bounds on the atkinson inequality index that are valid for any underlying distribution of income conditional on given fractile shares and gini coefficients while the bounds are too wide to reject the hypothesis that world inequality may have risen i show that world welfare rose unambiguously between 1970 and 2006 this conclusion is valid for alternative methods of dealing with countries and years with missing surveys alternative survey harmonization procedures alternative gdp series or if the inequality surveys used systematically underreport the income of the very rich or suffer from nonresponse bias

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

farm nonfarm linkages in rural sub saharan africa this paper is an accumulation over the past 25 years of a body of detailed work examining the structure of africa s rural nonfarm economy first it systematically reviews empirical evidence on the nature and magnitude of the african rural nonfarm economy it then explores differences across locality and size across countries and over time in an effort to assess likely patterns of growth a subsequent review of key production and consumption parameters allows an estimate of the magnitude of the agricultural growth multipliers in africa the paper concludes with a brief discussion of policies and programs that will be necessary if farm nonfarm growth linkages are to achieve their full potential

specific investment economies of scale and the make or buy decision a test of transaction cost theory this paper develops empirical tests of three hypotheses arising from transaction cost theory as developed by oliver williamson evidence is provided from a new dataset on 178 inputs gathered from uk engineering firms the probability of buying in specialised inputs is higher if the production technology is non specific but only if there are economies of scale or scope furthermore the economies of scale scope effect is much reduced in the presence of specific assets this interactive hypothesis has not been formally tested before we also believe this to be the first cross section empirical test of transaction cost make or buy theory using european data

the demand for food and calories we investigate nutrition and expenditure in rural maharashtra in india we estimate that the elasticity of calorie consumption with respect to total expenditure is 0 3 0 5 a range that is in accord with conventional wisdom the elasticity declines only slowly with levels of living and is far from the value of zero suggested by a recent revisionist literature in these indian data the calories necessary for a day s activity cost less than 5 percent of the daily wage which makes it implausible that income is constrained by nutrition rather than the other way around

global income distribution from the fall of the berlin wall to the great recession we present an improved panel database of national household surveys between 1988 and 2008 in 2008 the global gini index is around 70 5 having declined by approximately 2 gini points china graduated from the bottom ranks changing a twin peaked global income distribution to a single peaked one and creating an important global median class 90 of the fastest growing country deciles are from asia while almost 90 of the worst performers are from mature economies another winner was the global top 1 hence the global growth incidence curve has a distinct supine s shape with gains highest around the median and top

strategic and financial performance implications of global sourcing strategy a contingency analysis using a contingency model of global sourcing strategy this study investigated the moderating effects of sourcing related factors on the relationship between sourcing strategy and a product s strategic and financial performance the results lent some support to the contingency model of global sourcing strategy in that product innovation process innovation and asset specificity were significant moderator variables for financial but not strategic performance however the results provided no support for bargaining power of suppliers and transaction frequency as moderator variables in other words in achieving high financial performance for a product whether a particular sourcing strategy should be used for a particular product depended on the levels of product innovation process innovation and asset specificity

recent trends in top income shares in the usa reconciling estimates from march cps and irs tax return data although the majority of research on us income inequality trends is based on public use march cps data a new wave of research using irs tax return data reports substantially higher levels of inequality and faster growing trends we show that these apparently inconsistent estimates are largely reconciled if the inequality measure and the income distribution are defined in the same way using internal cps data for 1967 2006 we closely match irs data based estimates of top income shares reported by piketty and saez 2003 our results imply that any inequality increases since 1993 are concentrated among the top 1 percent of the distribution

who are the global top 1 this paper presents the first in depth analysis of the changing composition of the global income rich and the rising representation of developing countries at the top of the global distribution we construct global distributions of income during 1988 2012 based on both household surveys and the new top incomes data derived from tax records which better capture the rich who are typically excluded from household surveys we find that the representation of developing countries in the global top 1 declined until about 2002 but that since 2005 it has risen significantly this coincides with a decline in global inequality since 2005 according to a range of measures we compare our estimates of the country composition and income levels of the global rich with a number of other sources including credit suisse s estimates of global wealth the forbes world billionaires list attendees of the world economic forum and estimates of top executives salaries to varying degrees all show a rise in the representation of the developing world in the ranks of the global elite

identifying supply and demand elasticities of agricultural commodities implications for the us ethanol mandate we present a new framework to identify supply elasticities of storable commodities where past shocks are used as exogenous price shifters in the agricultural context past yield shocks change inventory levels and futures prices of agricultural commodities we use our estimated elasticities to evaluate the impact of the 2009 renewable fuel standard on commodity prices quantities and food consumers surplus for the four basic staples corn rice soybeans and wheat prices increase 20 per cent if one third of commodities used to produce ethanol are recycled as feedstock with a positively skewed 95 percent confidence interval that ranges from 14 to 35 per cent jel q11 q16 q42 q48

explaining international and intertemporal variations in income inequality this paper explores the propositions that income inequality is relatively stable within countries and that it varies significantly among countries a new and expanded data set provides broad support for both propositions drawing on a political economy and capital market imperfection arguments to explain the intertemporal and international variation in inequality the empirical analysis shows that the predicted variables associated with the first argument a measure of civil liberties and the initial level of secondary schooling and the second argument a measure of financial depth and the initial distribution of land are indeed important determinants of inequality this paper explores two propositions regarding income inequality they are first income inequality is relatively stable within countries and second it varies significantly across countries to illustrate note that the gini coefficient in india remained almost constant for forty years 1951 92 with mean 32 6 and standard deviation 2 0 2 in contrast the variation in gini coefficients across countries is large 61 9 in honduras in 1968 compared with 17 8 in bulgaria in 1976 if substantiated these propositions have potentially significant implications for poverty the significance of the first is obvious barring any fundamental socio political change poverty reduction will depend crucially on the rate of economic growth given this the significance of the second is that in inegalitarian economies the poor will enjoy a smaller share of any national increment in income than in more egalitarian ones drawing on a new and expanded data set on inequality deininger and squire 1996a the first of the paper s three sections conducts standard statistical tests of the two propositions the sample comprises 573 observations on the most common measure of inequality the gini coefficient for 49 developed and developing countries covering the period 1947 94 the results broadly confirm our two propositions specifically analysis of variance anova shows that about 90 of the total variance in the gini coefficients

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

what do we know about global income inequality in this paper we review the recent literature on global interpersonal income inequality while all estimates agree that the level is very high with a gini of between 0 630 and 0 686 in the 1990s there is no consensus regarding the direction of change we discuss methodological issues including the use of national accounts versus survey based estimates of mean income or consumption and the choice of purchasing power parity exchange rates findings of a rise or fall in global income inequality are not robust across different estimation methods and datasets given the diversity of estimates and various sources of uncertainty including gaps and errors in the underlying data we conclude there is insufficient evidence to determine the direction of change in global interpersonal inequality in recent decades

deconstructing income and income inequality measures a crosswalk from market income to comprehensive income recent research on levels and trends in the united states in income inequality vary substantially in how they measure income we show the sensitivity of alternative income measures in capturing income trends using a unified data set focusing solely on market income or including realized taxable capital gains based on irs tax return data in more comprehensive household income measures will dramatically increase inequality growth compared to capital gains measures more in keeping with haig simons principles using a measure of yearly accrued capital gains dramatically reduces observed growth in income inequality across the distribution but also equalizes income growth since 1989