the political economy of urban food security in sub saharan africa abstract sub saharan african cities in the late 1990s face a daunting set of problems including rapid growth increasing poverty deteriorating infrastructure and inadequate capacity for service provision even as a renewed debate is shaping up around issues of urban development there is little attention given to the question of urban food security whereas in the 1970s and 1980s urban food problems in africa commanded political attention the nature of urban food insecurity in the 1990s is such that it has tended to lose political importance this is largely because in the 1970s the problem was one of outright food shortages and rapid price changes that affected large portions of the urban population simultaneously the impact of structural adjustment continued rapid growth and an increase in poverty make urban food insecurity in the 1990s primarily a problem of access by the urban poor under circumstances where the urban poor spend a very large portion of their total income on food urban poverty rapidly translates into food insecurity the lack of formal safety nets and the shifting of responsibility for coping with food insecurity away from the state towards the individual and household level has tended to atomize and muffle any political response to this new urban food insecurity this paper briefly reviews urban food insecurity and generates a set of empirical questions for an analysis of food and livelihood security in contemporary urban sub saharan africa and then examines historical and contemporary evidence from kampala uganda and accra ghana to suggest some tentative conclusions

cash transfer programs with income multipliers procampo in mexico abstract cash transfer programs create multiplier effects when recipients put the money they receive to work to generate further incomes when this is the case the ultimate income effects are multiples of the amounts transferred we analyze the procampo program in mexico that was introduced to compensate farmers for the anticipated negative effect of nafta on the prices of basic crops the transfer rules and the timing of the panel data collected allow unique control of biases in this impact analysis we find that the multiplier among ejido sector recipients is in the range 1 5 2 6 multipliers are higher for households with medium and large farms low numbers of adults in the household nonindigenous backgrounds and located in the center and gulf regions high multipliers reflect income opportunities that had remained unrealized due to liquidity constraints that are relaxed by the transfers opportunities come from the asset endowments that these households received through the land reform particularly irrigated land and they are enhanced by access to technical assistance

raising primary school enrolment in developing countries the relative importance of supply and demand abstract few policies are as universally accepted as raising primary school enrolment in developing countries but the policy levers for achieving this goal are not straightforward this paper merges household survey data with detailed school supply characteristics from official sources in order to estimate the relative impact of demand and supply side determinants of rural primary school enrolment in mozambique policy simulations based on a set of plausible interventions show that in rural mozambique building more schools or raising adult literacy will have a larger impact on primary school enrolment rates than interventions that raise household income when relative costs are considered adult literacy campaigns are nearly 10 times more cost effective than the income intervention and 1 5 to 2 5 times better than building more schools

computable general equilibrium models adjustment and the poor in africa abstract sahn and others at cornell have conducted a major research program on the impact of adjustment policies on the poor in africa making use of computable general equilibrium cge models their work was summarized in world development april 1996 they concluded that adjustment policies have not hurt and may have helped the poor this paper shows that such conclusions are highly dependent on the assumptions made about parameters relationships and closure in the models moreover in madagascar and tanzania where the cornell models suggest the poor benefited from adjustment there is evidence of worsening social and economic indicators our conclusion is that the cornell results are more a reflection of the assumptions made in developing the cge models than of reality

adaptation and distress in the urban economy a study of kampala households abstract though uganda underwent fairly rapid economic growth after independence in 1962 the civil strife and external shocks of the 1970s and 1980s led to rapid decline the impacts on kampala households reflect in many ways those on the rest of the country and have led to extensive diversification of incomes mainly to reduce the risks perceived in today s unstable environment a decrease in the share of wages in total incomes compensated by allowances of various types increased engagement in informal sector activities and even farming in the urban sector the main tasks of economic management are twofold to stabilize wage employment and to ameliorate the social misery caused by the decline the limited resource base and the continued external disturbances make the prospects for sustained recovery precarious

the shapley value of resale proof trades abstract this paper studies the shapley value of transferable utility games associated with resale proof trades of information is in the core iff there is exactly one minimal resale proof set a simple expression for is obtained for symmetric games and some bounds are given for in non symmetric cases

protection and the harmful effects of endogenous capital flows abstract assume a country has in place a binding tariff and is a price taker on world markets in which capital is internationally mobile and unimpeded regardless of trade patterns possible specificity of capital or factor intensities an increase in the tariff harms the country if capital is frozen and harms the country even more when capital mobility brings rates of return into line among countries

openness and wage inequality in kenya 1964 2000 summary this paper analyzes the evolution of wage inequality in kenya during 1964 2000 our measure of wage inequality is the ratio of wages in manufacturing to wages in agriculture which can be seen as an indicator of sectoral wage inequality or as a proxy for skilled to unskilled wages we find that changes in relative wages have primarily been driven by the degree of openness while other factors such as the capital labor ratio educational attainment relative labor productivity and the ratio between agricultural and manufacturing prices had no significant effect we conclude that international market integration has reduced wage inequality in kenya

internal adjustments to falling civil service salaries insights from uganda abstract real basic salaries of civil servants in many developing countries have fallen during the past 15 years little is known however as to how the civil service personnel structure and pay system have responded to the salary cuts civil service basic salaries fell drastically in uganda during 1975 1988 the adaptive responses of the civil service are identified allowances have not increased to cushion the salary cuts as is alleged to have happened in many developing countries the adaptive responses have had negative effects on efficiency and equity within the civil service they have reversed the decline in the public wage bill the raison d etre for deep salary slashes in the first place

targeted export promotion with several oligopolistic industries abstract we study export promotion policies in situations where several oligopolistic industries compete for the services of a sector specific factor of production the partial equilibrium argument for strategic subsidies must be modified to incorporate general equilibrium effects working through the factor market we find that these effects generally weaken the case for profit shifting subsidies in a benchmark case with symmetric exporting industries fixed coefficients technologies and an inelastic supply of the specific factor free trade is shown to be optimal

food security gender and occupational choice among urban low income households this paper examines an adaptive strategy using occupational choice that can be undertaken by household members in urban poor areas to help ensure their access to food our investigation focuses on self employed women and men in 14 predominantly slum communities in bolivia ecuador philippines and thailand results of our empirical analysis show that choice of business is associated with household vulnerability to food insecurity with women in vulnerable households likely to engage in food enterprises the findings suggest that urban low income households can mitigate the risk of food shortage through the selection of an enterprise activity that earns money income and is a direct source of food for consumption

poverty food security nexus evidence from a survey of urban slum dwellers in kolkata we explore the poverty food security nexus using an experience based indicator of food security constructed using a cross section sample of slum households in kolkata within the framework of a simultaneous ordered probit model we find a poor household is also likely to be food insecure additionally education gender and household composition are major drivers of food insecurity among low income urban households with the policy implication that anti poverty policies should be successful in eliminating household food insecurity however they need to be complemented with human capital investment and gender empowerment to be most effective

regional differences pose challenges for food security policy a case study of india mahadevan r and suardi s regional differences pose challenges for food security policy a case study of india regional studies this paper examines factors affecting the calorie gap by considering the risk of calorie inadequacy or excess at the tails of food intakes non linear estimations accounting for rural urban differences in more and less developed states allow for policy making on two levels first the calorie gap was found to respond differently depending on the calorie status of the individual to various socio economic characteristics social assistance programmes as well as caste and religion second these impacts depended on rural urban differences and at other times on the development of the states these findings pose significant challenges towards achieving a balanced regional food security policy

social capital and coping with economic shocks an analysis of stunting of south african children abstract south african households live in an environment characterized by risks and many face a significant probability of experiencing economic losses that threaten their daily subsistence using household panel data that include directly solicited information on economic shocks and employing household fixed effects estimation we explore how well households cope with shocks by examining the effects of shocks on child nutritional status unlike in the idealized village community some households appear unable to insure against risk particularly when others in their communities simultaneously suffer large losses households in communities with more social capital however seem better able to weather shocks

modeling the nutritional and distributional effects of taxing export crops it has been argued that the proximate causes of poverty among smallholders and its manifestation in extraordinarily high levels of malnutrition among preschool aged children emanate largely from the inadequate size of landholdings which produce insufficient food for the nutritional needs of the household 3 it has virtually become a convention in malawi to define poverty by landholding size 4 as a consequence a key element of the strategy to alleviate poverty and ensure food security in rural malawi has been to promote at least a subsistence level of maize production by smallholders through increasing or at

commodity and developing country terms of trade what does the long run show recently the debate surrounding the commodity net barter terms of trade and the terms of trade of developing countries has entered a new phase in this journal spraos i980 presents evidence of a stable declining commodity terms of trade and sapsford i985 although fl nding instability in the work of spraos argues in support of the stable declining terms of trade hypothesis grilli and yang i988 henceforth gy also provide evidence supporting this view and state the implications of this finding for developing country terms of trade a major contribution of gy is a published set of data on the main price indices with a high degree of consistency for the whole century 1 however cuddington and urzua i989 in thisjournal illustrate that the hypothesis of a secular deterioration in the commodity terms of trade is not robust to the alternative claim that there was a once and for all shift in commodity prices in the period i920 i after taking this shift into account these authors find little evidence to support the view of a secular decline 2 this debate has important implications for the prebisch singer hypothesis of a stable declining commodity terms of trade see for instance prebisch i 950 it also has implications for both development and stabilisation strategies adopted by commodity dependent developing countries a central issue in this analysis is the order of integration of the commodity terms of trade a time series is said to be integrated of order o i o if its mean and variance are constant or roughly speaking if the series is stationary a time series is said to be i n if the series requires first differencing n times before a stationary series is obtained alternatively if adding a time trend is sufficient to induce stationarity the series is termed trend stationary a trend stationary series implies that the variable in question simply adjusts around a constant growth path but an i i series is truly non stationary and displays very different properties a commonly cited example of an 1 i series is the random walk the order of integration of a single time series is related to the idea of cointegration of a number of time series consider two variables x and y that are not themselves i o but are of the same order of integration if the residuals from regressing x on y or vice versa are i o or roughly speaking if the residuals are stationary it can be concluded that the two variables are cointegrated in turn this implies that there is some form of equilibrium

is the locus of poverty changing abstract urbanization is now a dominant demographic phenomenon in low and middle income countries by the year 2000 half of the world s population will live in urban areas of this half two thirds will be in developing countries predominantly in asia whether there will be a corresponding shift of poverty from rural to urban areas is the central question of this analysis evidence from cross sectional time series and case data indicates that the percent of poverty in urban areas is dependent on income levels income growth and income distribution the evidence also indicates that the number of poor in rural areas will exceed those in urban areas well into the 21st century these poverty and urbanization trends are significant politically and important also with respect to food policy and required investments in agriculture

structural adjustment in africa insights from the experiences of ghana and senegal abstract structural adjustment in ghana and senegal has helped create an improved framework for economic growth but this is a fragile trend one that could be disrupted by bad weather adverse terms of trade and the vagaries of international assistance the current version of adjustment however has produced little enduring poverty alleviation a weak performance on equity issues together with rising political expectations has generated threats to the sustainability of structural adjustment and overall political stability alternatively adjustment policies can be modified to fully incorporate equity and sustainability objectives in this respect it is critical for the poor to obtain more effective representation in decision making on adjustment through indigenous nongovernment organizations

unemployment and female labour supply the definition of labour force participation in the standard labour supply model stands in sharp contrast to that used in compiling the labour force statistics in the labour supply models only those supplying positive hours of work are considered to be labour force participants on the other hand participation in the labour force statistics is often defined to include not only those supplying positive hours but also those actively searching for work this paper is an attempt to reconcile these concepts by allowing unemployed workers to enter a generalisation of the standard labour supply model this turns out to be a convenient way to enter demand side factors directly into the determination of an individual s labour market position the model is applied with some success to the working behaviour of married women in the uk family expenditure survey

poverty and inequality under income and price dispersions many policies simultaneously affect the distribution of prices and incomes in the economy moreover a bias may occur when there is a stochastic relationship between prices and incomes and this relationship is being ignored it is therefore important to dispose of an analytical framework for welfare analysis that could account for changes in this joint distribution how can the joint influences of price and income distributions on poverty and inequality indicators be analysed we offer a method to deal with this problem by using parametric formulae of poverty and inequality measures we propose statistical indicators for the levels variabilities and a statistical link of price indices and nominal living standards these indicators are consistent with an approximation of the problem based on a bivariate lognormal distribution of price indices and nominal living standards our analysis provides hints about the social welfare impact of economic shocks or policies affecting levels variabilities and correlation of prices and incomes intuitive insights are obtained while using arithmetic means and variances instead does not lead to illuminating results the role of price and income variabilities for poverty and inequality is more complex than generally expected with the possibility of several variation regimes empirical investigation of these statistics would guide social policies

spatial integration transport costs and the response of local prices to policy changes in ghana abstract this paper investigates the respective roles of spatial integration and transport costs in explaining price changes in ghana we introduce a model of price formation and market integration that incorporates the price transmission process between local and central markets and also captures the implications for volatility of local prices we explore the implications of the model for the time path of price adjustments as determined directly and indirectly through the marketing sector we show that the price adjustment process in a local market is determined by the degree of interdependence between that market and the central market in which a price shock originates and estimate the intertemporal and interspatial dynamics of the price adjustment process using data from wholesale maize markets in ghana we find that reductions in local prices and local price variance following the introduction of economic reforms in 1983 can be traced to both local and central market forces but that differences in the degree of market integration have important implications for long run changes in transport costs and the evolution of prices in outlying markets

an assessment of voluntary restraints on hong kong exports to europe and the usa estimates of import tariff equivalents mtes 1981 84 of european and us voluntary export restraints on hong kong are presented with estimates of rent incomes transferred mte rates varied sharply over time and inversely with european tariffs as predicted by the model making national restrictions pointless as protection for small european countries the model points to and uses a new way of estimating non tariff barriers ntbs through derived estimates in principle once one has measured the restrictiveness of country l s ntbs one can derive an estimate of the restrictiveness of country 2 s ntbs

reducing the size of the public sector workforce institutional constraints and human consequences in guinea public sector employment reduction programmes have become an important component of economic reform efforts in sub saharan africa this article examines the fiscal institutional and human consequences of an employment reduction programme in the west african state of guinea while fiscal benefits appear to have been marginal and compensation schemes well targeted the human costs of the programme were significant due to long spells of unemployment among retrenched workers

food price variability and economic reform an arch approach for ghana changes in maize price levels and variability in ghana are investigated a model of wholesale price determination is reviewed in which grain stocks are held for speculative storage as well as export to neighboring countries in the sahel to test the model an autoregressive conditionally heteroskedastic arch regression is applied to monthly maize data for two markets over the period 1978 93 the regression is used to measure changes in maize price volatility in ghana and to infer the importance of past prices domestic and regional production and commodity storage and trade in explaining these changes

completing the european internal market some notes on trade policy this paper examines international trade policy within a completed european internal market the ethier horn argument for internal tariffs in a customs union is shown to be inapplicable to most of the ec s existing cost increasing barriers to trade the implications of abolishing both article 115 which prevents trade deflection and monetary compensatory amounts on agricultural trade are examined national production subsidies are examined in the context of the free intra ec mobility of capital and skilled labour subsidies are doubly harmful to a small open economy in the presence of factor mobility moreover even where rent snatching subsidies may be profitable for the ec as a whole subsidy wars could erupt between member states as they compete for rent generating industries

are women overrepresented among the poor an analysis of poverty in 10 developing countries abstract this paper presents new evidence on the proportion of women in poverty in 10 developing countries it compares poverty measures for males and females and for male and female headed households and investigates the sensitivity of these measures to the use of per capita and per adult equivalent units and different definitions of the poverty line while poverty measures are higher for female headed households and for females the differences are significant in only a fifth to a third of the datasets the contribution of female headed households to aggregate poverty is less than that of females due to the low population share of the former stochastic dominance analysis reveals that differences between male and female headed households and between males and females are often insignificant except for ghana and bangladesh where females are consistently worse off these results suggest that cultural and institutional factors may be responsible for higher poverty among women in these countries our results point to the need to analyze determinants of household income and consumption using multivariate methods and to give greater attention to the processes underlying female headship

food production urban areas and policy responses summary a growing literature under the heading of urban agriculture extols the virtues for urban food security and poverty reduction of farming in urban areas of developing countries this paper critically examines this literature with particular reference to the spread of food production in and around sub saharan african cities and towns the paper sets out a disaggregated view of food production in urban areas emphasizing the analytical and policy importance of rural urban interactions in resource and output markets as well as in income transfers the scope and limits of useful policy intervention in this area are considered the paper concludes that food production in urban and periurban areas certainly has a role to play in the food security of a proportion of urban dwellers but its contribution to the welfare of the poor in developing countries should not be exaggerated nor therefore should its claims for scarce development resources 0 1998 elsevier science ltd all rights reserved

informing food security decisions in africa empirical analysis and policy dialogue discussions of economic and agricultural development in africa have focused heavily in recent years on structural adjustment i e basic policy changes aimed at allowing international and domestic markets to play a greater role in coordinating national economic activities often these structural adjustments and accompanying policies aimed at improving economic performance have been based on several implicit assumptions about how african food systems operate yet for many countries little empirical information has been available to test these assumptions hence designing policies too often becomes an exercise in planning without facts this paper argues that not only is there a need to base food security and structural adjustment policies more firmly on empirical information but that the process by which the information is obtained is as important as the information itself agricultural economists and other social scientists can and increasingly should design policy research in africa in ways that simultaneously increase effective demand for empirical information as an input into the ongoing policy process and augment african capacity continually to inform policy deliberations we illustrate the payoffs to such an approach by drawing on selected experience in several african countries weber

exchange rate fiscal and agricultural policies in africa does adjustment hurt the poor abstract trade exchange rate fiscal and agricultural sector policy reforms are the pillars of structural adjustment programs in africa results indicate that trade and exchange rate reforms are associated with a large decline in economic rents and a shift in relative prices that favor the rural and urban poor fiscal reforms have not brought about draconian belt tightening measures although the incidence of public spending particularly in the social sectors and in terms of public sector employment remains far from progressive reduction of export crop taxation contributes to higher incomes for the poor and domestic food crop liberalization has not led to increases in purchase prices of staple commodities for most low income households

deterrence by market sharing a strategic incentive for licensing the potential of an incumbent firm to retain its dominant position in a market is a focal point of the modem theory of industrial organization a recent literature examines this issue for markets in which challengers threaten an incumbent s position by engaging in research for a new technology richard gilbert and david newbery 1982 show that an incumbent firm with a firstmover advantage will preempt potential entrants by inventing a new technology slightly earlier than would its rivals in a stochastic r d therefore its introduction does not alter the decision to research when the pre innovation market is characterized by an incumbent and potential entrants stephen salant 1984 shows that licensing ex post to innovation can alter the research decision as anticipation of the returns from future licensing encourages research by the entrant as a counterpoint to the salant result i find that licensing ex ante to research may discourage further research by the entrant indeed this strategic incentive for licensing may be so strong as to persuade the incumbent as well as the entrant to terminate research activity to isolate this incentive for licensing from the one discussed by salant a simple model is constructed in which licensing of future technologies is not desirable anecdotal evidence suggests that the strategic incentive does lead innovators in some markets to license their technologies examples of this information sharing are prevalent in markets where technological change is rapid in the 1940 s standard oil of new jersey discovered a process for synthetic rubber it traded patent rights on this process for a synthetic oil production process discovered by farben a german rubber company in both the synthetic oil and synthetic rubber markets rival companies were department of economics scarsborough college university of toronto toronto ontario canada m5s lal i thank jon cohen and ron saunders for discussions that inspired this paper i am also grateful to yehuda kotowitz andy mclennan jennifer reinganum ralph winter myma wooders two anonymous referees and seminar participants at the university of toronto for helpful comments on earlier drafts

economic reform and food prices evidence from markets in ghana abstract this paper investigates trends in food prices in ghana during 1970 1993 regression results confirm that real wholesale prices of food have been declining since the 1970s price trends in the 1980s are characterized by a downward shift at the beginning of the postreform period and a subsequent continuing downward trend despite falling grain prices we find that agricultural wage rates failed to provide an adequate basis for subsistence particularly during periods of large seasonal price rises many farmers hold grain for both speculation and to smooth income this view is supported by evidence regarding seasonal price spreads that have been increasing since 1984 we find no support however for conclusions of trader manipulation of marketing margins during the adjustment period

the emergence of parallel markets in a transition economy the case of mozambique abstract the food rationing scheme in maputo mozambique was intended to ensure food security for the poor an analysis of survey data reveals that even households that possess ration cards are mainly reliant on parallel markets instead of the ration system for their purchases the results indicate that market liberalization including eliminating rationing will at worst be neutral for the poor and more likely be beneficial since the treasury will capture the rents associated with rationing that presently accrue to traders and parastatals

the real exchange rate and macroeconomic performance in sub saharan africa abstract pooled time series and cross section data for 33 countries in sub saharan africa ssa confirm the negative relationship between the real exchange rate rer misalignment and economic performance economic growth imports exports saving and investment macroeconomic instability also slows growth and other indicators of performance higher levels of misalignment are accompanied by higher levels of macroeconomic instability both lower levels of rer misalignment and instability lead to better economic performance the edwards model of rer determination performs well for the region black market premia tend to show a greater degree of misalignment in rer than alternative measures

political feasibility of structural adjustment in africa an application of sam mixed multipliers abstract the implementation of structural adjustment programs saps has often been undermined by opposition from politically powerful groups who are favored by existing policies to assess the political sustainability of saps this paper uses social accounting matrices for three african countries to model the income effects of stylized saps on different socioeconomic groups the analysis reveals wide variation in the likelihood for typical saps to be acceptable to political elites while generating growth in the rest of the economy the presence of a rural elite or strong farm nonfarm linkages can enhance the political sustainability of saps

has recovery begun africa s adjustment in the 1980s revisited this article reviews the 1989 debate between the world bank and the economic commission for africa over africa s adjustment and on the basis of most recent statistics concludes that there is little evidence that the region is in throes of a recovery some countries however did relatively better than others in the 1980s and an attempt is made to account for differences in performance it is concluded that success in adjustment results not from world bank international monetary fund programs as such but rather from policy coherence accompanied by healthy movement in key variables namely the real exchange rate and public development expenditure

the imf the world bank and africa s adjustment and external debt problems an unofficial view abstract sub saharan african development in the 1990s will require significant increases in transfers and debt relief from external official sources negotiation of conditions for assistance imposes heavy costs upon recipients once gross macroeconomic distortions are overcome the risk of program failure from uncertainty and underfunding typically excceds that from absence of further policy reforms the effects of which are unproven the relative influence of the international monetary fund imf and world bank in african programs has grown too large the imf transferring resources out of the region should retreat to a technical advisory role the world bank should develop contingency financing and cooperation with other sources of advice and finance

human capital and economic development abstract this paper develops a general equilibrium model of fertility and human capital investment with young adult mortality because young adult mortality is negatively related to average young adult human capital human capital accumulation lowers mortality inducing demographic transition and industrial revolution data confirm that young adult mortality is related negatively to schooling and the rate of return to schooling and positively to fertility the data indicate a negative relationship between tfp growth and schooling accumulation the model fits the data on country populations per capita incomes human capital total fertility rates infant mortality life expectancy and conditional life expectancy

the impact of changes in human fertility on poverty household survey data for developing and transitional economies are used to estimate the effect of fertility crude birth rate net of infant deaths on private consumption poverty cross national regressions indicate that higher fertility increases poverty both by retarding economic growth and by skewing distribution against the poor our median country in 1980 had dollar a day poverty incidence of 18 9 per cent had it reduced its fertility by four per 1 000 throughout the 1980s the sample median fall it is estimated that incidence would have been reduced to 13 9 per cent the growth and distribution effects being roughly equally responsible for this reduction

european community external protection and 1992 voluntary export restraints applied to pacific asia european community external protection and 1992 voluntary export restraints applied to pacific asia

wage rigidity micro and macro evidence on labor market adjustment in the modern sector aggregate data on wages and employment may provide misleading indicators of labor market conditions they may suggest inappropriate wage policies in the face of rising unemployment experienced in many developing countries during the 1980s such increases in unemployment are often attributed to wage rigidities a cursory review of aggregate data for the modern sector in cote d ivoire would support this view suggesting that employment declined during the 1979 84 recession due to an increase in real wages examination of disaggregated data from two labor force censuses of the modern sector however shows that real wages declined for specified classes of labor the work force was characterized by greater education training and experience workers with a given level of attributes received a lower real wage by the end of the recession than before it despite this drop in real wages employment in the modern sector declined

fees versus royalties and the private value of a patent we compare how much profit an owner of a patented cost reducing invention can realize by licensing it to an oligopolistic industry producing a homogeneous product by means of a fixed fee or a per unit royalty our analysis is conducted in terms of a noncooperative game involving n 1 players the inventor and the n firms in this game the inventor acts as a stackelberg leader and it has a unique subgame perfect equilibrium in pure strategies it is shown that licensing by means of a fixed fee is superior to licensing by means of a royalty for both the inventor and consumers only a drastic innovation is licensed to a single producer

agricultural incentives in developing countries measuring the effect of sectoral and economywide policies the impact of sector specific direct and economywide indirect policies on agricultural incentives for 18 developing countries for the period 1975 84 are estimated the direct effect is measured by the proportional difference between the producer price and the border price adjusting for distribution storage transport and other marketing costs the indirect effect has two components 1 the impact of the unsustainable portion of the current account deficit and of industrial protection policies on the real exchange rate and thus on the price of agricultural commodities relative to nonagricultural nontradables and 2 the impact of industrial protection policies on the relative price of agricultural commodities to that of nonagricultural tradable goods the authors found that a in almost all cases the direct effect is equivalent to a tax on exportable goods and to a subsidy for importables b the indirect effect also taxes agriculture and dominates the direct effect and c the direct policies for both importables and exportables stabilize domestic producer prices

public expenditures in sub saharan africa during a period of economic reforms abstract public expenditure restraint is the most direct means of reducing balance of payments and budget deficits and is consequently a key aspect of macroeconomic adjustment programs the results of this study indicate a steady increase in total central government and social services spending during 1977 1989 in sub saharan africa the growth in population however contributed to an overall erosion in per capita expenditures while total government expenditures as a share of gdp have been stable during the past decade they have declined net of interest repayments which represent an increasingly large share of total spending an analysis of spending in the three years before and after donor financed adjustment programs began reveals no pattern of increase or decrease in real levels of total and social sector expenditures or in social sector spending as a share of the total expenditures elasticities of health and education spending with respect to gdp were found to be greater than unity in recent years indicating that as countries develop social spending will constitute a larger share of gdp

are experience and schooling complementary evidence from migrants assimilation in the bangkok labor market abstract this paper models the assimilation process of migrants and shows evidence of the complementarity between their destination experience and upon arrival human capital bayesian learning is assessed using panel data of wages from bangkok thailand it is found that i schooling returns are lower for migrants than for natives ii the accumulation of destination experience raises wages for migrants iii the experience effect is greater for more educated agents and iv the complementarity increases as destination experience accumulates the results imply that more educated migrants have higher learning efficiency and can perform tasks of greater complexity ultimately yielding higher wage growth in the destination market

resale proofness and coalition proof nash equilibria abstract this paper studies in detail the notion of resale proofness proposed by nakayama quintas and muto it is shown that in an information trading game with one initial owner of information the following are attained as equilibrium outcomes of the game the perfectly coalition proof nash equilibria due to bernheim peleg and whinston if a set of informed agents is resale proof information never diffuses further the initial owner shares his information with a set of demanders such that the resulting set of informed agents forms one of the minimal resale proof sets and the initial owner gains the whole surplus produced by the information sharing

who makes economic policy in africa and how abstract to understand the considerable detorioration in the economic policies of many african countries during the 1970s it is essential to go beyond the economist s analytical models the pressing drive of authoritarian rulers to survive adds an important dimension to economic policy choices although constrained to varying degrees by ethnic regional and class loyalties among populations they govern african rulers enjoy a measure of autonomy in making policy they did not react speedily to the growing economic crisis during the early 1980s however most reforms were undertaken under pressure and many policy efforts failed some countries managed to sustain reforms but the important question is how to go beyond these idiosyncratic cases

after the decision implementing policy reforms in developing countries abstract implicit in many reform proposals is a model of the policy process that is roughly linear a proposed reform gets on the agenda for government action a decision is made on the proposal and the new policy or institutional arangement is implemented either successfully or unsuccessfully this article presents an alternative interactive model of implementation that focuses on the conflict and reactions that are evoked by efforts to bring about changed policy or institutional contexts for development and the resources that policy makers and managers are likely to require to sustain a reform in the face of such reactions central to the analysis is the assertion that characteristics of the reform being implemented will largely determine the kind of conflict it engenders where such reaction is likely to become manifest and what resources are needed for sustainability the analysis suggests a framework for the strategic management of reform initiatives

does cash crop adoption detract from child care provision evidence from rural nepal this document addresses the issues of agricultural commercialization using data from fieldwork conducted in nepal it aimed to examine the impact of a project designed to commercialize vegetables and fruit the vegetable and fruit cash crop program vcf on male and female time allocation the goal of vfc program was to increase the commercial production of vegetables and fruits in farm households that were heavily dependent on the production of cereal and livestock for home consumption findings from multivariate analysis suggest that for households with one preschooler vfc participation results in more time to agricultural production of the cash crop for both men and women but also a decrease in care time to preschoolers from both men and women meanwhile for households with more than one preschooler this trade off is not so apparent the analysis also suggests that behavior change initiatives to protect time to child care might be feasible in that vfc participation does not decrease the overall nonwork time of men or women with preschool children in residence

international r d rivalry and industrial strategy this paper presents a theory of government intervention which provides an explanation for industrial strategy policies such as r d or export subsidies in imperfectly competitive international markets domestic net welfare is improved by the capture of a greater share of the output of rent earning industries although the subsidy ridden noncooperative international equilibrium is jointly suboptimal behaviour of governments and firms is modelled as a three stage subgame perfect nash equilibrium the assumption that the government is the first player in this game allows it to influence equilibrium outcomes by altering the set of credible actions open to firms

incentive policies and export performance in sub saharan africa abstract the paper presents the results of an econometric investigation which shows that exports in general and agricultural exports in particular are responsive to price incentives in sub saharan africa it is further shown that within sub saharan africa market oriented countries generally gained and interventionist countries lost export market shares the differences in export performance are even greater if comparisons are made between private market economies and etatist countries in a three fold classification scheme that puts some countries in an intermediate category

stable payoffs in resale proof trades of information abstract this paper consider what payoff allocations can be outcomes of resales proof trades of information with a monopolistic seller the concept of resale proofness has been introduced by m nakayama l quintas and s muto 1988 resale proof trades of information discussin paper 776 northwestern university in formulating a trade such that no agent has an incentive to resell when the resale is freely allowed with appropriate modifications we consider the core of such a trade and derive a necessary and sufficient condition for the trade to have a single outcome the monopolistic imputation it is also shown that generally the sole seller cannot enjoy the monopolistic position in a resale proof trade

tax incidence in madagascar an analysis using household data this article discusses tax incidence in madagascar and asks who pays the taxes that finance government spending its main concern is to identify the progressivity of different taxes levied in madagascar based on the consumption and income patterns found in the 1994 enquete permanente aupres des menages a nationally representative survey the results suggest that most taxes are progressive meaning that wealthy households pay proportionately more of these taxes relative to their expenditures than do poor households two notable exceptions are taxes on kerosene and export duties on vanilla both of which are regressive these results are consistent with those of a study of ghana the only other comparable research on tax incidence in africa that study found taxes on kerosene and cocoa exports to be the most regressive taxes in ghana making firm policy recommendations for tax reform would require an analysis of the economic efficiency and administrative efficacy of different taxes to complement this article s work on their equity implications nevertheless the results suggest that the movement away from trade taxes especially export duties and toward broadly based value added or income taxes would be more equitable and more economically efficient the only legitimate impediment to such reforms in madagascar is administrative that is the government s ability to collect different taxes effectively although administrative efficiency may be a problem for value added or income taxes taxes on petroleum products except kerosene are highly progressive and provide a good tax handle