efficient and durable decision rules with incomplete information we compare six concepts of efficiency for economies with incomplete information depending on the stage at which individuals welfare is evaluated and on whether incentive constraints are recognized an example is shown in which an incentive efficient decision rule may be unanimously rejected by the individuals in the economy we define durable decision rules which can resist such unanimous rejection and show that efficient durable decision rules exist

how important is the capacity of local governments for improvements in welfare evidence from decentralised uganda abstract decentralisation is often claimed to be effective for improvements in welfare and hence the reduction of poverty but empirical evidence is scarce this paper seeks to gain further insights into the relationship between decentralisation and welfare by investigating the role of local governments capacity for household consumption and school enrolment in uganda using household survey data it finds suggestive evidence that both household consumption and school enrolment are positively related with the level of capacity of district governments

crop insurance and disaster assistance designs for wheat and grain sorghum this study compares the effectiveness of two crop insurance and two disaster assistance program designs used in conjunction with a government commodity program and a linked crop insurance government commodity program design stochastic dominance analysis of farm level net return distributions is used to select the preferred design s the results indicate that the disaster assistance programs are preferred over the alternatives the results also suggest that individual crop insurance is preferred to area crop insurance a subsidy is required for risk averse managers to prefer area crop insurance to individual crop insurance

beyond the short versus long accountability route dichotomy using multi track accountability pathways to study performance of rural water services in uganda summary performance of social service delivery is often linked with effective accountability accountability studies increasingly acknowledge that studying one type of accountability relation at a time is too restrictive our study aims to correct for this and explores the effectiveness of combinations of different accountability mechanisms we take the world development report s accountability triangle as a starting point and adapt it in three ways first we refine the long route to accountability into three tracks by differentiating between the three groups of demand side actors political accountability opposition citizen led and civil society led social accountability second for each track we take into account the demand and supply side and the availability of supply demand interfaces finally we adopt a holistic approach through the simultaneous incorporation of both the short and long with the different tracks routes to test its usefulness we use our refined accountability framework to study the accountability constellations and their link to performance in uganda s rural water sector building on qca our findings identify the long three track route supply interface all three demand actors and the citizen led social accountability route as viable routes to high water service performance in ugandan districts additionally a set of new hybrid accountability arrangements are identified while contrary to theoretical assumptions the short route clients to service providers does not prove effective

power struggle dispute and alliance over local resources analyzing democratic decentralization of natural resources through the lenses of africa inland fisheries summary this paper is based on a global review of fisheries decentralization programs co management in sub saharan africa partly challenging the current narrative but in line with experience in other sectors e g forestry the review shows that the outcomes of these decentralizations have not been systematically positive in most cases fisheries co management failed to improve governance but simply altered the distribution of power and responsibility amongst the different stakeholders in this new political landscape poorly designed reforms have enabled a variety of usual and new local actors to advance their own agendas often at the detriment of the direct end users fisherfolk

input demand under yield and revenue insurance previous studies disagree on the effects of insurance on fertilizer application rates the effect of increased fertilizer on the probability of low yields primarily determines whether fertilizer and insurance are substitutes or complements we estimate conditional distributions of corn yields to determine if the technical relationship between yields and fertilizer supports the hypothesis that insurance increases optimal application rates our results indicate no support for this hypothesis at all nitrogen fertilizer rates and reasonable levels of risk aversion nitrogen fertilizer and insurance are substitutes suggesting that those who purchase insurance are likely to decrease nitrogen fertilizer applications

does commercialization undermine the benefits of decentralization for local services provision evidence from mexico s urban water and sanitation sector summary decentralization has been promoted as a means to better reflect citizen preferences and improve local services many developing countries decentralized and promoted neoliberal policies such as commercialization simultaneously leaving mayors with the responsibility of improving public services through self financing reforms this study evaluates experiences in three mexican cities to assess whether decentralization and commercialization practices have resulted in improved water and sanitation services it finds that commercialization has increased social conflict surrounding urban services provision and that local institutional constraints further undermine mayor s ability to adopt politically contentious policies the result has been stalled and uneven service improvements

insurance moral hazard and chemical use in agriculture this paper examines how crop insurance affects corn farmers fertilizer and pesticide use in the u s midwest crop insurance might be expected to affect chemical use because of moral hazard insured farmers may undertake riskier production than do uninsured farmers results suggest that insurance exerts considerable influence on corn farmers chemical use decisions those purchasing insurance applied significantly more nitrogen per acre 19 spent more on pesticides 21 and treated more acreage with both herbicides and insecticides 7 and 63 than did those not purchasing insurance these results suggest that both fertilizer and pesticides may be risk increasing inputs

all stage strong correlated equilibrium abstract a strong correlated equilibrium is a strategy profile that is immune to joint deviations different notions of strong correlated equilibria were defined in the literature one major difference among those definitions is the stage in which coalitions can plan a joint deviation before ex ante or after ex post the deviating players receive their part of the correlated profile in this paper we show that an ex ante strong correlated equilibrium is immune to deviations at all stages thus the set of ex ante strong correlated equilibria of moreno wooders games econ behav 17 1996 80 113 is included in all other sets of strong correlated equilibria

crop insurance in a political economy an alternative perspective on agricultural policy lawmakers often subsidize farmers in times of financial distress this article models this political impulse as a constraint on government farm policy describing how ex ante government farm insurance can deter ex post disaster relief and improve production incentives by countering the moral hazard that otherwise prevails absent ex ante government policy ex post relief takes the form of revenue insurance which prompts excessive entry into farm production and under production by operating farmers ex ante government policy can raise economic and political welfare by buying out low productivity farmers and offering profitable farmers a combination of revenue insurance price supports and a program participation fee copyright 2003 oxford university press

correlated equilibrium as an expression of bayesian rationality if it is common knowledge that the players in a game are bayesian utility maximizers who treat uncertainty about other players actions like any other uncertainty then the outcome is necessarily a correlated equilibrium random strategies appear as an expression of each player s uncertainty about what the others will do not as the result of willful randomization use is made of the common prior assumption according to which differences in probability assessments by different individuals are due to the different information that they have where information may be interpreted broadly to include experience upbringing and genetic makeup copyright 1987 by the econometric society

crop insurance acreage decisions and nonpoint source pollution the redirection of farm policy in the 1996 farm bill has generated much interest in seeking environmentally friendly and economically viable ways to protect farm income agricultural insurance has been suggested as such an instrument this article estimates the effect of crop insurance on crop mix and the resulting change in chemical use in the central nebraska basin providing corn insurance will shift land from hay and pasture to corn which will increase chemical use at the extensive margin this extensive margin effect dominates the effect of crop insurance on the application rate leading to an increase in total chemical use

two moment decision models and expected utility maximization two moment decision models are consistent with expected utility maximization only if the choice set or the agent s preferences are restricted this paper identifies a restriction which is sufficient to ensure this consistency and confirms that it holds in many economic models the implications for economic analysis are then derived two different approaches to representing an agent s preferences over strategies yielding random payoffs are in wide use under the mean standard deviation ms approach the agent is assumed to rank the alternatives according to the value of some function defined over the first two moments of the random payoff while the expected utility eu criterion assumes that the expected value of some utility function defined over payoffs is used instead the fact that there are these two competing approaches has generated a considerable literature some authors are concerned with the advantages and disadvantages of each while others deal with conditions under which the potentially different approaches would yield the same results or at least approximately so space does not

price analysis risk assessment and insurance for organic crops the agricultural risk protection act of 2000 recognized organic farming as a good farming practice making federal crop insurance coverage available for organiccrops and taking into account the idiosyncrasies of the organic production system inaddition to the production risks covered for conventional producers organic farmerswho sign up for coverage are compensated for production losses from damage due toinsects disease and or weeds however the incorporation of organic production intothe crop insurance rating structure has been limited organic producers are charged anarbitrary 5 premium surcharge over conventional crop insurance the actuarialfairness of this premium is at least questionable in addition in the case of crop failure organic farmers receive compensation based on the prices of conventionally producedcrops thus price premiums that organic producers are able to obtain in the market arenot compensated for under the current insurance policy structure the food conservation and energy act of 2008 which amends part of thefederal crop insurance act was written to investigate some of these claims requiringthe u s department of agriculture to examine the currently offered federal cropinsurance coverage for organic crops as described in the organic policy provisions of theact title xii such provisions established the need to review among other things theunderwriting risk and loss experience of organic crops determine whether significant consistent or systematic variations in loss history exist between organic and nonorganicproduction and modify the coverage for organic crops in accordance with the results here we present the major findings of three analyses we performed on keyelements of the insurance of organic crops prices yields and revenue in an effort tocontribute to the design of an organic crop insurance policy that covers organicproducers according to their idiosyncratic risks

returns to spending on agricultural extension the case of the national agricultural advisory services naads program of uganda the aim of this paper is to assess the direct and indirect impacts of the agricultural extension system of uganda the national agricultural advisory services naads program on household agricultural income data from two rounds of surveys of ugandan rural farm households conducted in 2004 and 2007 as well as different program evaluation methods and model specifications are used to estimate impacts and compute a rate of return the direct and indirect impact of the program is estimated at 37 95 and 27 55 increase in per capita agricultural gross revenue between 2004 and 2007 for households participating directly and indirectly in the program respectively compared to nonparticipants the rate of return on the program s expenditures is estimated at 8 49 the program has been relatively more effective among male headed larger and asset poor households as well as those taking up noncrop high value enterprises and living further away from financial services all weather roads and markets or located in the eastern and northern regions policy implications of the results are drawn

farmer response to modified crop insurance a case study of corn in indiana this study examines the potential effects on crop insurance of more detailed yield risk classifications combined with alternative premium setting techniques and higher yield guarantees combined with coinsurance corn producers in tippecanoe county indiana were surveyed for their responses to these changes response to area yield insurance is also evaluated the modified mpci program area yield insurance and two types of disaster payment programs are also compared in terms of their costs and coverage

on the coalition proofness of the pareto frontier of the set of nash equilibria abstract this article shows that the pareto efficient frontier of the nash equilibrium set of games with strategic substitutes is coalition proof under the following conditions 1 the game has three players or alternatively a player s payoff depends on her own strategy and on the sum but not on the composition of other players strategies 2 an increase in a player s strategy either raises all other players payoffs monotonically or reduces them monotonically and 3 each player s payoff is strictly concave in her own strategy under these conditions the pareto dominance refinement is equivalent to the coalition proof nash equilibrium refinement journal of economic literature classification number c72

rationality of choices in subsidized crop insurance markets the u s crop insurance market has several features that set it apart from other insurance markets these include explicit government subsidies with an average premium subsidy rate of about 60 in recent years and the legislative requirement that premium rates be set at actuarially fair levels where the federal government sets rates and pays all costs related to insurance policy sales and services bearing these features in mind we examine the extent to which farmers crop insurance choices conform to economic theory a standard expected utility maximization framework is constructed to analyze trade offs between higher risk protection and larger subsidy payments we decompose the effect of coverage level on expected utility into insurance premium loading and subsidy transfer effects where the loading effect vanishes if rates are actuarially fair given an actuarially fair premium we infer that a rational farmer should choose either the coverage level with the highest premium subsidy or a higher coverage level evidence from a large insurance unit level dataset contradicts this theoretical inference and so suggests anomalous insurance decisions in a novel application of the mixed logit framework we show that the probability an insurance product is chosen declines as out of pocket premium expenditures increase even though higher values of these expenditures should reflect improved grower welfare premium expenditures appear to be more salient than the uncertain future benefits they support we apply our regression to the recent trend yield adjustment innovation in crop insurance

does greater accountability improve the quality of public service delivery evidence from uganda summary it is now widely realized that in many developing countries the low quality of public services and governance can limit the scope for poverty reduction and growth empirical micro level evidence on the scope for improved accountability to help reduce corruption and improve the quality with which critical public services are provided is however limited using a large data set from uganda to address this issue we find that household knowledge on how to report inappropriate behavior by bureaucrats and unsatisfactory quality of services does help to not only reduce the incidence of corruption but is also associated with significant improvements in service quality

effects of crop insurance premium subsidies on crop acreage crop insurance premium subsidies affect patterns of crop acreage for two reasons first holding insurance coverage constant premium subsidies directly increase expected profit which encourages more acreage of insured crops direct profit effect second premium subsidies encourage farms to increase crop insurance coverage with more insurance coverage farms obtain more subsidies and farm revenue becomes less variable as indemnities offset revenue shortfalls so acreage of insured crops likely increases indirect coverage effect by exploiting exogenous policy changes and using approximately 180 000 county crop year observations we estimate the sum of these two effects of premium subsidies on the pattern of u s acreage across seven major field crops we estimate that a 10 increase in the premium subsidy causes a 0 43 increase in the acreage of a crop in a county holding the premium subsidy of its competing crop constant taking into account the small share of premium subsidies in expected crop revenue this subsidy impact is analogous to an own subsidy acreage elasticity of 1 24 which exceeds own price acreage elasticity estimates in the literature one explanation for the larger acreage response to premium subsidies is that insurance causes an indirect coverage effect in addition to a direct profit effect

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

implications of disaster assistance reform for non insured crops with recent crop insurance reform disaster aid to producers of crops for which federal crop insurance was not available has changed significantly a newly created non insured assistance program nap is a standing disaster aid program for non insured crops including most vegetables and some tree crops to receive a payment a farmer has to meet nap s area triggered loss in addition to usual individual loss criteria in this paper we examine the implications of these two tiered criteria for nap payments in the context of california agriculture our analysis indicates that the area loss requirement likely results in a sharp reduction in disaster payments for non insured crops

rate making for farm level crop insurance implications for adverse selection this research identifies two problems in the new federal crop insurance that may cause adverse selection a the relationship between rate making and expected yields for individual farmers and b the bias introduced in coverage protection when trends are not used to establish expected yields a theoretical investigation using the normality assumption demonstrates the potential severity of these problems and empirical results from farm level data lend further support as crop insurance changes to individualized methods of protection these issues will be particularly important for developing rates

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

blending top down federalism with bottom up engagement to reduce inequality in ethiopia donors increasingly fund interventions to counteract inequality in developing countries where they fear it can foment instability and undermine nation building efforts to succeed aid relies on the principle of upward accountability to donors but federalism shifts the accountability of subnational officials downward to regional and local voters what happens when aid agencies fund anti inequality programs in federal countries does federalism undermine aid does aid undermine federalism or can the political and fiscal relations that define a federal system resolve the contradiction internally this study explores this paradox via the promotion of basic services program in ethiopia the largest donor financed investment program in the world using an original panel database comprising the universe of ethiopian woredas districts the study finds that horizontal geographic inequality decreased substantially donor financed block grants to woredas increased the availability of primary education and health care services in the bottom 20 percent of woredas weaker evidence from household surveys suggests that vertical inequality across wealth groups within woredas also declined implying that individuals from the poorest households benefit disproportionately from increasing access to and utilization of such services the evidence suggests that by combining strong upward accountability over public investment with extensive citizen engagement on local issues ethiopia s federal system resolves the instrumental dissonance posed by aid funded programs to combat inequality in a federation

coalition proof correlated equilibrium a definition a coalition proof correlated equilibrium of a game is a pair consisting of a correlation device and a coalition proof nash equilibrium of the game extended by the device a direct coalition proof correlated equilibrium is a canonical device such that the obedient strategy is a coalition proof nash equilibrium of the canonical extended game the revelation principle may not hold even for two person games direct coalition proof correlated equilibrium may fail to exist for games with more than two players for any game a pure coalition proof nash equilibrium is a direct coalition proof correlated equilibrium c 1996 academic press inc

coalition proof equilibrium we characterize the agreements that the players of a noncooperative game may reach when they can communicate prior to play but they cannot reach binding agreements a coalition proof equilibrium is a correlated strategy from which no coalition has an improving and self enforcing deviation we show that any correlated strategy whose support is contained in the set of actions that survive the iterated elimination of strictly dominated strategies and weakly pareto dominates every other correlated strategy whose support is contained in that set is a coalition proof equilibrium consequently the unique equilibrium of a dominance solvable game is coalition proof journal of economic literature classification

coalition proofness and correlation with arbitrary communication possibilities abstract the ability of the members of a coalition to communicate secretly determines whether the coalition can coordinate to deviate from a proposed strategy and thus affects which strategies are coalition proof we show that the existence of a pareto best element in the set of strategies that survive iterated elimination of dominated strategies implies the existence of a coalition proof correlated equilibrium for any specification of coalitional communication possibilities that always permits individual deviations such an element exists in games with strategic complementarities if either 1 there is a unique nash equilibrium or 2 each player s payoff is nondecreasing in the others strategies journal of economic literature classification number c72

aid growth and devolution summary this paper examines whether the degree of fiscal decentralization in aid receiving countries matters in explaining aid effectiveness the decentralization theorem predicts that the devolution of powers should increase aid effectiveness since local decision makers are better informed about local needs thereby decentralization may also have reverse effects e g through coordination problems excessive regulation administrative costs and local capture we use panel data for up to 60 countries and find that aid contributes to economic growth in centralized developing economies whereas it is less effective or even harmful in decentralized countries the cases of indonesia the philippines and uganda support our findings our results imply that donor countries should carefully consider how the two development instruments foreign aid and decentralization interact

right target wrong mechanism agricultural modernization and poverty reduction in uganda summary household consumption surveys suggest that the downward trend in rural poverty indicators recorded in uganda during the 1990s has been reversed since 2000 this paper examines the ugandan government s strategy to reduce rural poverty the plan for modernization of agriculture pma it argues that while there appear few better choices of target for the pma than to improve incomes of the rural poor through increased agricultural productivity emphasis on decentralization as a mechanism for poverty reduction is misplaced in the current political context of uganda the paper considers what alternative mechanisms might better deliver reductions in rural poverty

making reform work institutions dispositions and the improving health of bangladesh we examine whether local governance can improve social development empirically using good and bad cases of public health outcomes in bangladesh we explore the institutional underpinnings of service provision digging down beneath the rules of the game to analyze the beliefs understandings and dispositions that drive social behavior changes in deep social attitudes led to improvements in social indicators regional variation in health outcomes is explained by the presence or absence of a dense web of relationships that enmeshed reformers in local systems of authority and legitimacy strengthening their actions and making local society more susceptible to change

correlated equilibria incomplete information and coalitional deviations this paper proposes new concepts of strong and coalition proof correlated equilibria where agents form coalitions at the interim stage and share information about their recommendations in a credible way when players deviate at the interim stage coalition proof correlated equilibria may fail to exist for two player games however coalition proof correlated equilibria always exist in dominance solvable games and in games with positive externalities and binary actions c 2008 elsevier inc all rights reserved

the politics of staying poor exploring the political space for poverty reduction in uganda summary despite claims that uganda s recent success in poverty reduction has been significantly related to getting the politics right there are concerns that the poorest may not have benefited from this form of poverty reduction or the types of politics that have helped shape it employing the analytical framework of political space reveals that although some of the poorest groups are represented within the political system political discourse reveals a strong bias toward the economically active leaving the poorest excluded from poverty programs significantly there is an increasing divergence between the regime s political project of modernization and the international poverty agenda with important implications for the poorest

coalition proof nash equilibria ii applications abstract in bernheim peleg and whinston coalition proof equilibria i concepts j econ theory 42 1987 1 12 we proposed the notion of coalition proof nash equilibrium and perfectly coalition proof nash equilibrium as solution concepts for strategic environments in which players can freely discuss their strategies but cannot make binding commitments this paper undertakes applications to several economic problems including the behavior of cournot oligopolists oligopolistic entry deterrence cooperation in finite horizon games and social choice rule implementation