from food availability to nutritional capabilities advancing food security analysis abstract this paper has a threefold objective first it provides a comprehensive review of different approaches to analysing food security second it highlights the added value provided by the capability approach and the human development paradigm third it proposes a methodology to assess food security through this approach our proposal entails three basic steps 1 analysis of food entitlements 2 analysis of nutritional capabilities and 3 analysis of the capability to be food secure in this way we can move beyond income entitlement or livelihood related frameworks and identify the root causes of food insecurity food insecurity can be the result of a lack of education health or other basic capabilities that constitute people s wellbeing this therefore allows situating the study within the broader area of wellbeing and development

the relation between price and marginal cost in u s industry a contradiction in a recent article in this journal hall 1988 examined productivity shocks at the industry level derived from constant returns to scale production functions in which firms were assumed to be competitive hall had two important conclusions first he showed that productivity shocks i e solow residuals were correlated with aggregate demand variables implying that the former are not exogenous impulses second his results implied that firms persistently charge prices above marginal costs making inappropriate the constant returns to scale competitive production function assumed in many theoretical frameworks because of the importance of hall s findings the article has led to many extensions evans 1992 confirms the empirical finding of significant correlations between productivity shocks and aggregate demand variables burnside eichenbaum and rebelo 1993 show that this correlation can be explained by introducing labor hoarding into a theoretical model with competitive firms and constant returns to scale production functions the markups above marginal cost are explained by eden and griliches 1991 and galeotti and schiantarelli 1991 by modifying the theoretical production function caballero and lyons 1992 using the hall data and methodology examine the possibility of external economies in the aggregate manufacturing production finally waldmann 199 1 argues in this journal that the

structural change and income distribution an inverted u relationship abstract this paper constructs a disequilibrium model in order to analyse the structural transition characterized by the emergence of a new sector we show that in an economy where preferences and technology adapt over time multiple long term outcomes are mainly brought about by different distributive rules governing the assignment of innovative rents between workers and entrepreneurs we robustly establish that a successful transition to a two sector economy is ensured by a balanced distribution restoring the co ordination of investment and consumption plans instead when innovative rents are too concentrated in favor of either workers or entrepreneurs the system does not fully accomplish the transition and unemployment might emerge in contrast with the standard view of a negative relationship between real wages and employment

the state and economic stagnation in tropical africa abstract politics while only one strand in the explanation of africa s massive economic problems is nonetheless a significant factor a central conundrum facing postcolonial political leaders is how to govern and hold together unintegrated peasant societies in the absence of legitimacy personal rule a particular mode of patrimonial governance provides an answer permitting regime survival and the advancement of political insiders but personal rule has an economically destructive tendency that only shrewd political leadership and propitious world economic conditions can check if uncontrolled certain political practices corrode bureaucratic and legal rationality and promote the misallocation of scarce public resources the result can be a downward spiral of interrelated political and economic decline that is increasingly difficult to reverse

household coping in war and peacetime cattle sales in rwanda 1991 2001 abstract the economic literature has given due attention to household coping strategies in peacetime in contrast little is known about such strategies in wartime this paper studies the use of cattle as a buffer stock by rwandan households during 1991 2001 a period characterized by civil war and genocide it is found that the probability of selling cattle increases upon the occurrence of both peacetime and wartime covariant adverse income shocks the peacetime cattle sales are largely explained by shifts in the household asset portfolio in contrast in 1994 the year of the genocide almost half of the cattle sales were motivated by the need to buy food however we argue that the effectiveness of this coping strategy was severely reduced due to the wartime conditions first during the year of ethnic violence cattle prices plummeted to less than half of their pre genocide value second we find that households most targeted in the violence did not sell cattle we discuss several explanations for this latter finding

mathematical vindication of ricardo on machinery ricardo is shown to be right that machinery can hurt wages and reduce output a dramatic robot example reveals wicksell s error in believing that pareto optimality calls for no drop in total output from a viable invention under ricardo s axiom that labor supply adjusts to keep wages at the subsistence level he can correctly deduce on a market clearing basis a rise in his net product rent plus interest while the greater drop in population and total wages result in a reduction in his gross product rent plus interest plus wages

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

targeting maps an asset based approach to geographic targeting summary proper targeting of policy interventions requires reasonable estimates of the benefits of the alternative options to inform such decisions we develop an integrated approach stemming from the small area estimation literature that estimates the marginal returns to a range of assets across geographically defined subpopulations we create a series of maps that can be overlaid with traditional poverty maps to identify strong candidate areas for intervention though an efficiency equity tradeoff sometimes exists we apply our method using recent ugandan data results are consistent with independent empirical findings and suggest asset specific transfer schemes would improve with a spatially targeted strategy

market structure and the empirical specification of profit margins we present evidence from a panel of u k manufacturing industries to test the sensitivity of the margins concentration relationship to specification changes in the dependent variable instrumental variable estimates demonstrate that a positive association between profit margins and concentration is contingent on how the margin is formulated

asking questions to understand rural livelihoods comparing disaggregated vs aggregated approaches to household livelihood questionnaires summary this study tests the hypothesis that both disaggregated and aggregated data collection methods produce similar estimates of the relative importance of livelihood portfolio activities and expenditures the results show that different methods of data collection yield substantively different estimates of livelihood strategies for two indicators income and expenditure we also find evidence of a seasonal bias in responses to household livelihood questions asked at higher levels of aggregation our findings highlight the challenge of designing household surveys to elicit accurate and precise information and demonstrate that different methods of data collection influence our understanding of rural livelihoods

the sacrifices of micro borrowers in ghana a customer protection perspective on measuring over indebtedness this article measures the over indebtedness of micro borrowers it defines over indebtedness from a customer protection perspective based on the borrowers sacrifices we analyse the sacrifices borrowers experience and find that 30 per cent of borrowers are over indebted we then test risk management indicators of debt problems as predictors of over indebtedness over indebtedness is strongly related to delinquency and the debt to income ratio but not to debt amounts or to multiple borrowing although our model correctly predicts 72 6 per cent of cases even the best indicators identify only a few over indebted borrowers risk management is not enough to protect customers against over indebtedness but the industry needs to measure customer experiences directly

rural nonfarm activities and agricultural crop production in nigeria although most rural households are involved in the farm sector the nonfarm sector has grown significantly in recent decades and its role in rural development has become increasingly important this article examines the effect of participation in nonfarm activities on crop expenses of farm households in nigeria the relationship is modeled using a nonseparable agricultural household model that suggests that participating in nonfarm activities can relax the credit constraints facing farm households and reduce risk thereby helping households improve farm production and smooth consumption over time the results show that participation in nonfarm activities by nigerian farmers has a positive and significant effect on crop expenses and in particular on payments for hired labor and inorganic fertilizers separate analysis of the six geopolitical zones in nigeria indicates that it is in the south south and south east zones where nonfarm participation appears to induce more hiring of labor the results support the hypothesis that nonfarm participation helps relax liquidity constraints but suggests how that liquidity is used is zone specific in general the results also indicate that liquidity is used more to pay for inputs into staple production as opposed to cash crops

rainfall shocks and within community wealth inequality evidence from rural ethiopia summary household level impacts of environmental shocks are often negative but may vary considerably due to heterogeneous vulnerability this paper considers how differential vulnerability among households affects inequality within rural communities in ethiopia this study makes novel use of the demographic and health surveys dhs and a nasa agro climatology dataset results show that rainfall deficits have an equalizing effect on within community livestock inequality in parts of ethiopia but regional differences are observed a non significant effect is observed with respect to asset inequality as an initial study on this topic this paper outlines an agenda for future data collection and analysis efforts

rural income generating activities whatever happened to the institutional vacuum evidence from ghana guatemala nicaragua and vietnam this paper assesses the current rural development practice against the main trends in recent rural development thinking based on evidence from four country case studies while much progress has been made in understanding the need to look beyond only agriculture for the promotion of productive activities in rural areas and the institutional vacuum consistently identified in the rural non farm literature is gradually being filled much remains to be done one aspect on which more research is particularly needed is the development of better mechanisms to promote productive investment rather than just social investment and to assess the appropriate level community regional national at which to do this

rural income and poverty in a time of radical change in malawi abstract malawi is one of the poorest countries in africa there is widespread though not universal agreement about the shape of poverty in the country and the policy challenge this sets agriculture continues to be the most obvious means to stimulate broad based rural growth and to provide levels of food security and income needed for the majority rural population a longitudinal study over a decade during which radical policy and political changes occurred provides the data and basis for discussing the appropriate policy directions for reducing poverty

business cycle models with endogenous technology this paper compares real and monetary business cycle models with and without endogenous technical change if technology is endogenous the properties of these models change significantly in particular both real and monetary models yield very similar output processes if growth is endogenous and changes in aggregate demand can result in permanent changes in productivity employment and output the effect of depreciation of technology is examined and the pattern of real wage movements over the cycle when money wages are fixed but technology is changing is briefly considered copyright 1990 by american economic association

periodic high risk as a cause of fertility decline in a changing rural environment survival strategies in the 1980 1983 south indian drought in the attempt to explain persistent high fertility in much of the third world attention has been drawn both to current returns from child labor and to the mitigation or avoidance of future risks the latter can be subdivided into meeting emergencies while the parental generation is still of working age and providing for old age or even safeguarding the transmission of family property on parental death the problems of old age have recently received most attention and they may well be of paramount importance in many societies yet in a research program that we have conducted in rural south india since 1979 the reasons given for demographic behavior have more frequently emphasized the need to plan strategies to meet periodic crisis than to ensure old age support 2 nevertheless one should not underemphasize the latter merely because the problem is predictable and the solutions understood in the study area for the great majority of the aged the support system still worked well 3 in contrast in our investigations of marriage fertility control and education we repeatedly discovered that a fundamental consideration with regard to parental decisions in these areas was to strengthen the ability of the family to withstand periodic crises 4 by far the most important type of crisis in this dry drought prone area was recurrent famines resulting

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

few opportunities much desperation the dichotomy of non agricultural activities and inequality in western kenya summary using data from western kenya we confirm the existence of a dichotomous non agricultural sector the poverty and inequality implications of the differently motivated diversification strategies only partly correspond to expected patterns while high return activities are indeed confined to richer households low return activities constitute an important income source for households across the entire income distribution finally we examine the wider implications of our findings for rural livelihoods we find that only engagement in high return non agricultural activities is significantly associated with increased agricultural productivity it seems that such high return activities play a key role in triggering cumulative effects of relative livelihood success

does the nonfarm economy offer pathways for upward mobility evidence from a panel data study in ethiopia summary empirical studies across many developing countries routinely document a positive correlation between participation in rural nonfarm employment and households wealth or income this paper explores whether nonfarm employment leads to higher consumption expenditure growth in ethiopia we find that 1 households consumption expenditure growth is positively correlated with the initial share of nonfarm income 2 the growth elasticity of nonfarm income share is higher for wealthier households and 3 the main source of growth for nonfarm participants comes from the higher rates of return participants enjoy on their human and physical capital

measuring food insecurity the frequency and severity of coping strategies abstract defining and interpreting food security and measuring it in reliable valid and cost effective ways have proven to be stubborn problems facing researchers and programs intended to monitor food security risks this paper briefly reviews the conceptual and methodological literature on food insecurity measurment describes a particular method for distinguishing and measuring short term food insecurity at the household level and discusses ways of generalizing the method the method developed enumerates the frequency and severity of strategies relied on by urban households when faced with a short term insufficiency of food this method goes beyond more commonly used measures of caloric consumption to incorporate vulnerability elements of food insecurity as well as the deliberate actions of household decision makers when faced with food insufficiency

modelling embedded risk in peasant agriculture methodological insights from northern malawi abstract using a linear programming model of farming systems in northern malawi the conditions under which peasant farm household models may need to allow for embedded risk are investigated tactical sequential responses to uncertainty are found to be more important to labour scarce households with limited access to capital and to credit markets compared with semi sequential programming discrete stochastic programming dsp provided more efficient solutions for problems involving embedded risk there may be intuitive advantages in presenting results from dsp models in terms of a semi sequential strategy

why did wicksell change his mind about the machinery question abstract the article investigates wicksell s change of mind about the machinery question between 1890 and 1900 1901 wicksell at first sided with the so called compensation theory that workers are not harmed by the introduction of machinery in his lecture notes of april 1900 made available here for the first time wicksell deployed marginal productivity theory to discuss the effects of labour saving technical progress with inconclusive results finally in his published 1901 lectures and in his 1900 article about marginal productivity wicksell claimed that the introduction of machinery increases output and reduces wages his analysis was based on the demonstration that free competition maximizes output but not total utility it is argued that wicksell s change of mind and his mature formulation of the machinery question result from his critical assessment of the then new concept of pareto optimality together with his reinterpretation and rejection of ricardo s 1821 contention that the introduction of machinery may diminish output and employment

the rural non farm economy prospects for growth and poverty reduction summary policy makers have high expectations for the rural non farm economy rnfe given high income shares growing employment and frequently low capital requirements they see the rnfe as a potential pathway out of poverty for their rural poor yet available evidence suggests that pro poor rural non farm growth does not occur automatically for the poor to benefit from rural non farm growth policy makers must stimulate buoyant rural economies with robust non farm income growth not simply low productivity employment moreover the poor must gain access to growing market niches fluid labor markets provide one important bridge linking the rural poor to growing non farm opportunities

input contracts market structure and the empirical specification of price cost margins abstract we examine the implications for the empirical specification of the margins concentration relationship of different forms of contracting for intermediate inputs we offer an alternative explanation why the results of profit margin regressions depend on whether the margin is deflated by gross output or net output 1997 elsevier science s a

poverty in african households the limits of survey and census representations african poverty statistics depend on household level measurements from survey data making the definition of household of critical importance detailed case studies from tanzania and burkina faso explore 1 understandings of household membership and ambiguities and 2 how well survey definitions capture households as economic units and the implications for household size and responses to and mitigation of poverty we develop an analytic framework of open and closed households open households cope with poverty using flexibility movement and extra household networks but are poorly represented by survey data closed households are likely to be better described by survey data

combining household income and asset data to identify livelihood strategies and their dynamics abstractcurrent approaches to identifying and describing rural livelihood strategies and household movements between strategies over time in developing countries are imprecise here we i present a new statistical quantitative approach combining income and asset data to identify household activity choice variables characterise livelihood strategy clusters and analyse movements between strategies and ii apply the approach using an environmentally augmented three wave household n 427 level panel dataset from nepal combining income and asset data provides a better understanding of livelihood strategies and household movements between strategies over time than using only income or asset data most households changed livelihood strategy at least once over the two three year periods a common pathway out of poverty included an intermediate step during which households accumulate assets through farming petty trading and migratory work

market structure and cyclical fluctuations in u s manufacturing the relevance of imperfect competition for models of economic fluctuations has received increased attention from researchers in both macroeconomics and industrial organization the authors outline a new methodology for estimating industry markups of price over marginal cost and the influence of market structure on cyclical movements in total factor productivity measures of industry concentration import competition and unionization are important for explaining markups in some industry groups much of the estimated markup of price over marginal cost is accounted for by noncapital fixed costs finally the authors show that their estimated margins fluctuate substantially over the cycle in particular markups are countercyclical especially in concentrated durable goods industries copyright 1988 by mit press

agriculture reform and food crisis in syria impacts on poverty and inequality abstract the paper pursues a twofold objective from a methodological viewpoint it shows how to carry out an impacts evaluation of exogenous shocks on poverty and inequality in a context characterised by out of equilibrium poorly adjusting markets as it is the case in many developing countries using a social accounting matrix framework from an empirical viewpoint it provides an assessment of how the cereal price spikes of 2007 2008 and the global recession of 2008 2009 have impacted the welfare of syrian households and how did they compound with the on going agricultural sector liberalisation implemented by the government of syria since mid 1990s this will contribute to shed some lights on the economic background behind the spreading of unrest across the country over the last couple of years or so the results show that liberalisation impacts are very different and largely affected by the adopted budget closure rules while reforms aiming at reducing agricultural market distortions such as production subsidies and price support for strategic crops could generally have a positive effect on growth poverty and inequality the elimination of food security interventions such as food stamp schemes determines an adverse distributional impact against rural household and an increase of poverty the recent macroeconomic shocks food price crisis and the global recession determined a generalised poverty increase and showed an income distribution bias against rural households three fundamental policy implications can be drawn by this study first the liberalisation of agricultural sector shows a significant growth potential and is likely to determine positive effects on poverty through a generalised increase of incomes as well as public budget savings that could be used for pursuing other policy goals second in the short run there is a structural trade off between equity improvements and poverty alleviation the policy options that will more likely reduce absolute poverty show undesirable distributive biases both on overall inequality and on rural households vis a vis urban households third the reform should include a careful design of the use of budget savings mainly to address equity goals that are likely to be generated in the short run by liberalisation

the determination of profit margins in uk manufacturing this paper examines the determinants of profit margins in 91 u k manufacturing industries over the period 1983 86 it considers how the inclusion of labor market characteristics in empirical industrial organization specifications affects the estimated concentration margins relationship the empirical work pays detailed attention to the endogenous nature of variables derived from structural industrial organization models the authors report instrumental variables estimates of margins equations in which there emerges a significant role for labor market characteristics indeed both unionization and industrywide unemployment are found to depress profit margins the impact of concentration is seen to be biased downward when these variables are omitted

drought transfer entitlements and income distribution the botswana experience abstract using 1974 75 and 1985 86 income distribution survey data with the latter supplemented by drought relief data this paper presents an analysis of intertemporal rural household income distribution in botswana despite the fact that the 1974 75 survey was conducted during one of the best agricultural production periods on record and the 1985 86 survey was conducted in the midst of one of the worst after the rural income economy had been weakened by a severe and prolonged drought botswana s rural income inequality did not appear to have increased significantly there was no marked reduction in rural household real incomes the explanation for this outcome is found to lie in the income maintenance strategy pursued by rural households with strong support from transfer entitlement guarantees from private and public sources supplementing rural household incomes

sri lanka s rural non farm economy removing constraints to pro poor growth summary we use a survey of rural enterprises from sri lanka to explore characteristics of the informal non farm sector and identify obstacles to its expansion and productivity value added in this sector amounts to 80 of agricultural gdp participating households incomes are significantly higher than those of households who do not participate barriers to entry are low and the impact of non farm development on inequality modest implying a large potential contribution to growth and poverty reduction infrastructure constraints negatively affect new startups investment in and productivity of existing enterprises with small enterprises being particularly affected

poverty and the rural nonfarm economy in oromia ethiopia the rural nonfarm sector has gained increasing importance not only in asia but also in africa it is however widely believed that in most parts of africa the growth of the nonfarm economy has increased inequality and has had a limited effect on the poor who face entry barriers to nonfarm activities the present article analyzes the relation between nonfarm income poverty and inequality in oromia ethiopia we use two complementary methodologies i econometric estimates of household income from the nonfarm sector and ii a gini decomposition of analysis income inequality by source the results consistently indicate that in oromia entry barriers to nonfarm activities is low and the general growth of the sector will benefit the poor

famine and household coping strategies abstract households faced with risks to their entitlement to food will plan strategically to minimize their impact the task of doing this will be particularly demanding during famines this paper reviews the evidence on household strategies for coping with famine in africa and identifies some distinctive patterns in these strategies which can be used to examine household objectives at times of crisis the management of resources to meet these objectives and limits to the effectiveness of coping strategies in particular it examines the role of asset management and trade offs between maintaining current food consumption levels and protecting the future income generating capacity of the household

adjusting to technological change the subject of my address is adjusting to technological change something that a lot of people are doing nowadays the revolution in information and communication technologies and the transition to a knowledge based economy are inducing people in every sector to change how they work and do business what i want to emphasize is that these changes constitute a social process that involves more than the sum of our individual struggles with inanimate nature people are adjusting not only to changes in technology but to changes that others are making to technology adjustments in one sector induce unexpected adjustments and innovations in other sectors in a complex process that none of the participants can possibly comprehend the process is governed by social institutions particularly by the business enterprises that organize almost all economic transactions in a modem economy and at the same time it is transforming those institutions a graphic account of how peoples lives are being tossed about by the winds of change might be too depressing for this occasion so to keep it light i am simply going to talk about macroeconomic theory if there is one profession that has not yet seen much of the darker side of technological change it is macroeconomic theory in fact the recent resurgence of interest in growth and technological change seems to have had a calming effect on the profession by diverting attention from the issues of unemployment inflation and aggregate demand management that have been the subjects of the furious controversies since the keynesian revolution peaceful coexistence has emerged between previously opposing schools now united by the

balancing rural poverty reduction and citizen participation the contradictions of uganda s decentralization program abstract uganda s ambitious decentralization program is analyzed in terms of a dual mode system of local governance under a technocratic mode conditional funding from the center is earmarked for particular programs but with little local participation in contrast the patronage mode is an elaborate system for local bottom up planning but with limited resources which are largely consumed in administrative costs and political emoluments along with the spoils of a committee system controlling contracts and appointments these resources provide the means for building political alliances and loyalty in the absence of a culture of transparency and civic engagement to assure downward accountability it remains to be seen whether decentralization can promote both efficient service delivery and local empowerment simultaneously

the relation between price and marginal cost in u s industry an examination of data on output and labor input reveals that some u s industries have marginal cost well below price the conclusion rests on the finding that cyclical variations in labor input are small compared with variations in output in booms firms produce substantially more output and sell it for a price that exceeds the costs of the added inputs the paper documents the disparity between price and marginal cost where marginal cost is estimated from annual variations in cost it considers a variety of explanations of the findings that are consistent with competition but none is found to be completely plausible

as an economy becomes more developed do people become less altruistic abstractinter household private transfers are one of the main informal insurance mechanisms that prevalently implemented in developing countries unfortunately most of the literatures investigates

agricultural input credit in sub saharan africa telling myth from facts recent evidence shows that many sub saharan african farmers use modern inputs but there is limited information on how these inputs are financed we use recent nationally representative data from four countries to explore input financing and the role of credit therein a number of our results contradict conventional wisdom found in the literature our results consistently show that traditional credit use formal or informal is extremely low across credit type country crop and farm size categories instead farmers primarily finance modern input purchases with cash from nonfarm activities and crop sales tied output labor arrangements which have received little empirical treatment in the literature appear to be the only form of credit relatively widely used for farming

vertical integration input contracts and the margins concentration relationship in recent years it has become common when specifying empirical price cost margins to use net output as opposed to the more usual gross output in the denominator it has been noted that with gross output as the denominator the point estimate on concentration from a regression of margins on concentration is lower than with net output as the denominator and the estimate is frequently insignificant the possible explanations that have been put forward to explain this empirical phenomenon are discussed and evidence is presented using data from the uk census of production and the uk input output tables neither theoretical nor empirical justification is found for the use of the adjusted margin but instead it is suggested that the empirical phenomenon is caused by the omission of appropriate variables to control for contracting relations in purchasing intermediate inputs

rural livelihoods and poverty reduction strategies in four african countries this paper compares and contrasts rural livelihoods in uganda kenya tanzania and malawi with a view to informing rural poverty reduction policies within poverty reduction strategy plans prsps low household incomes in rural areas of all countries are associated with low land and livestock holdings high reliance on food crop agriculture and low monetisation of the rural economy these adverse factors are in some instances made more difficult by land sub division at inheritance declining civil security in rural areas deteriorating access to proper agronomic advice and inputs and predatory taxation by decentralised district councils better off households are distinguished by virtuous spirals of accumulation typically involving diverse livestock ownership engagement in non farm self employment and diversity of on farm and non farm income sources lessons for prsps centre on the creation of a facilitating rather than blocking public sector environment for the multiplication of non farm enterprises seeking creative solutions to the spread of technical advice to farmers and examining critically the necessity for and impact of tax revenue collection by district councils on rural incomes and enterprise

capacity and competition empirical evidence on uk panel data following d kreps and j scheinkman 1983 it is common to view the difference between cournot and bertrand competition as depending on production capacity bertrand undercutting is only feasible if firms have capacity to serve the market gained if firms are capacity constrained the cournot model is more appropriate this paper tests the capacity and competition idea by looking at the relationship between profits and capacity constraints if capacity constrained firms become more cournot like it should be positive using survey data on capacity constraints merged into a panel industry data set for the united kingdom the authors find a robust positive relationship copyright 1994 by blackwell publishing ltd

risk coping land tenure and land markets an overview of the literature over the last decades a significant amount of literature has been published on informal risk coping in developing countries in this paper we review how informal risk coping has been addressed in the land tenure literature from two main perspectives a first stream of research looks at how customary tenure and communal property perform key informal risk coping functions a second subset of this literature analyses how informal risk coping creates land market imperfections through sharecropping or distress sales the segmentation of the literature results from the demsetzian property rights framework further research on risk coping and land tenure would benefit from examining recent work on property regimes

when households run out of fuel responses of rural households to decreasing fuelwood availability ntcheu district malawi this paper examines strategies used by rural households in ntcheu district malawi to cope with a decreasing fuelwood availability fieldwork was carried out in 1990 and 1991 with increasing distance to woodlands households initially collected further away spending more time on collection but when distance to woodlands increased further households returned to nearby places using less time for collection and switching to lower quality woods results indicate that distance to collection place and collection time are not reliable indicators of fuelwood shortages households within the same village differed in collection strategies particularly as regards collection distance and collection frequency households that tended to collect further away and more frequently were large in size with more female adults these households also collected more wood even per capita compared to smaller households suggesting that smaller households economized on fuelwood use this paper supports the idea that level of fuelwood used is not only determined by fuelwood availability but more by labour availability

the hidden costs of political instability evidence from kenya s 2007 election crisis abstract this paper studies the microeconomic impacts of the political crisis and civil conflict that immediately followed the december 2007 presidential election in kenya income expenditures and consumption dramatically declined for a broad segment of the rural population for the duration of the conflict to make up for the income shortfall women who supply transactional sex engaged in higher risk sex both during and after the crisis while this particular crisis was likely too short for these behavioral responses to seriously increase the risk of hiv or other stis for these women such responses could have long term repercussions for health in countries with longer or more frequent crises overall our results suggest that social unrest can be an important channel through which political instability can affect long term outcomes such as health

nonfarm employment agricultural intensification and productivity change empirical findings from uganda this article uses panel data from the living standards measurement study integrated surveys on agriculture for uganda to assess the farm level effects of nonfarm employment on agricultural intensification and productivity change a sample selection model is used to account for both unobserved heterogeneity and potential simultaneity between agricultural production and nonfarm income results show that nonfarm employment can have differential impacts on farm technology intensity and productivity nonfarm income is found to have a positive impact on farm hired labor and improved seed intensity a negative effect on on farm family labor use and no significant impact on fertilizer soil water management and joint use of farm technologies the econometric evidence also indicates that agricultural productivity declines as nonfarm income increases taken together our findings reveal important trade offs between nonfarm employment and income and farm productivity growth under smallholder agriculture the results indicated that targeted policies are required to reduce these potential trade offs between nonfarm employment and agricultural intensification and productivity change

african evidence on the relation of poverty time preference and the environment abstract it is typically argued in the economics literature that the poor operate with a higher rate of time preference than their wealthier counterparts the poor it is suggested have a higher rate of time preference because they are more concerned about present survival than they are about saving for the future such thinking is also central to the economic growth for environmental conservation and the poverty induced environmental degradation arguments according to these assertions wealth allows people to consider the future and invest in environmental conservation and poverty leaves people with no alternative but to exploit the environment so that they may feed their families today evidence from the food security and famine early warning fields suggests that households in many african contexts behave quite to the contrary during periods of food shortage poor households will often undertake extreme measures in the present including depriving the family of needed calories in order to preserve productive capital for the future such as a plough oxen or seed stock this evidence suggests that poor african households may in fact have very low rates of time preference this calls into question our general assumptions about discount rates for developing countries for which rates of time preference are a theoretical determinant

seasonal food crises and policy responses a narrative account of three food security crises in malawi summary this paper examines seasonal food price crises in malawi in the 2000s malawi experienced three episodes in which seasonal maize prices rose in 2001 02 2004 05 and 2007 09 by 354 218 and 395 respectively these extreme price spikes resulted from a sequential interaction of economic and political events a repeated pattern of cause inapt response and adverse outcome is identified the relative neglect in vulnerability analysis of staple food price movements as lead indicators of impending food crises is emphasized and implications are drawn for price stabilisation public private coordination and social protection policies

combining income and assets measures to include the transitory nature of poverty in assessments of forest dependence evidence from the democratic republic of congo abstract a considerable amount of research on poverty environment relations in developing countries under the cifor pen initiative focuses on household income generation from forests using total annual income as a measure of poverty however income alone produces a static picture in a snapshot of time while poverty is a dynamic state that can be a transitory phenomenon using income only also fails to consider that households can liquidate asset to overcome income shocks here we show that using asset quintiles measured by value of assets produce a distinctly different pattern than the commonly observed negative relation between income and forest dependence we then present an approach enabling categorization of households as chronic or transient poor transient rich and rich providing a more nuanced picture than that provided by cifor pen studies so far the validity of groupings is tested by comparing household characteristics and exposure to shocks we then show that the chronic poor are most reliant on forest income while the transient poor consume a higher share of harvested forest products the transient rich have higher agricultural productivity and absolute forest income rich households relies more on business based on the results we suggest recommendations for improving future studies on poverty environment relations

income distribution efficient bargaining and market structure we present an efficient bargaining model in which wage share is negatively associated with product market structure and varies positively with union bargaining strength the model is tested using data from a panel of u k manufacturing industries instrumental variables estimates corroborate a positive negative union bargaining strength concentration effect on labour s income share

poverty and productivity in female headed households in zimbabwe abstract a household survey conducted in rural zimbabwe in 2001 is used to compare the position of de facto and de jure female headed households to those with a male head these households are characterised by different forms of poverty that impinge on their ability to improve agricultural productivity however once inputs are accounted for it is only for growing cotton that female headed households productivity is lower than that found for male headed households general poverty alleviation policies will benefit the female headed household but specific interventions via extension services and access to marketing consortia are also indicated

ten years of q squared implications for understanding and explaining poverty summary over the past decade there have been a number of initiatives to promote a more systematic integration of quantitative and qualitative or q squared approaches to poverty analysis in the global south and a large body of literature had emerged the objective of the article is to present a selective review of this empirical work with a view to demonstrate the value it has added for understanding and explaining poverty the evidence strongly suggests that q squared approaches have aided our understanding of the characteristics of the poor and the causes of poverty

the empirical specification of price cost margins abstract this paper examines why results for profit margin regressions may depend on whether the margin is deflated by industry sales or value added it attributes disparate results to stage of production effects which occur because the price elasticity of demand is an omitted variable

shocks and their consequences across and within households in rural zimbabwe abstract increasing attention is now being paid to poverty dynamics in developing countries this work links the extent to which households smooth consumption or smooth assets given income shocks the empirical evidence on the churning of households in and out of poverty and the possibility that temporary shocks can have permanent consequences using longitudinal data from rural zimbabwe this paper extends the discussion of these issues by disaggregating the impact of shocks by levels of asset holdings by disaggregating the impact of shocks on individual level welfare and by assessing the extent to which such shocks have permanent consequences by doing so it assesses the validity of distinguishing between asset and consumption smoothing and provides insights into whether poverty dynamics assessed at the household level provide an adequate picture of dynamics at the individual level

how access to irrigation influences poverty and livelihoods a case study from sri lanka abstractthis study combines a livelihoods approach with a regression approach to quantify the effectiveness of irrigation infrastructure investment on improving people s livelihood strategies using a unique dataset based on households in southern sri lanka and a natural experimental setting we estimate from a two stage income regression model to show that irrigation access has a positive effect on income through livelihood choices we also show through qualitative approaches that factors not linked to irrigation infrastructure may contribute to changes in livelihood portfolios in addition we highlight factors that result in certain households being unable to move out of poverty despite access to the improved irrigation infrastructure

price hike of staple food nutritional impact and consumption adjustment evidence from the 2005 2010 rice price increase in rural bangladesh this paper studies the nutritional impact of the rice price increase between 2005 and 2010 on households in rural bangladesh and their resulting adjustment in consumption of rice non rice food and

household strategies and rural livelihood diversification this article reviews the recent literature on diversification as a livelihood strategy of rural households in developing countries with particular reference to sub saharan africa livelihood diversification is defined as the process by which rural families construct a diverse portfolio of activities and social support capabilities in order to survive and to improve their standards of living the determinants and effects of diversification in the areas of poverty income distribution farm output and gender are examined some policy inferences are summarised the conclusion is reached that removal of constraints to and expansion of opportunities for diversification are desirable policy objectives because they give individuals and households more capabilities to improve livelihood security and to raise living standards

the cleansing effect of recessions the authors investigate industry response to cyclical variations in demand production units that embody the newest process and product innovations are continuously being created and outdated units are being destroyed although outdated units are the most likely to turn unprofitable and be scrapped in a recession they can be insulated from the fall in demand by a reduction in creation the structure of adjustment costs plays a determinant role in the responsiveness of those two margins the calibrated model matches the relative volatilities of the observed manufacturing job creation and destruction series and their asymmetries over the cycle copyright 1994 by american economic association