global inequality how large is the effect of top incomes abstract despite the growing interest in global inequality assessing inequality trends is a major challenge because individual data on income or consumption is not often available nevertheless the periodic release of certain summary statistics of the income distribution has become increasingly common hence grouped data in form of income shares have been conventionally used to construct inequality trends based on lower bound approximations of inequality measures this approach introduces two potential sources of measurement error first these estimates are constructed under the assumption of equality of incomes within income shares second the highest income earners are not included in the household surveys from which grouped data is obtained in this paper we propose to deploy a flexible parametric model which addresses these two issues in order to obtain a reliable representation of the income distribution and accurate estimates of inequality measures this methodology is used to estimate the recent evolution of global interpersonal inequality from 1990 to 2015 and to examine the effect of survey under coverage of top incomes on the level and direction of global inequality overall we find that item non response at the top of the distribution substantially biases global inequality estimates but more importantly it might also affect the direction of the trends

export and output supply functions with endogenous domestic prices abstract this paper deals with the estimation of export supply functions which has been neglected by the literature in favor of the export demand function reliable estimates of export supply elasticities are essential for the evaluation of trade policy interventions the paper estimates short run export and output price elasticities in cote d ivoire we attempt to improve on previous approaches by modeling exported goods and goods intended for domestic consumption as imperfect substitutes incorporating the domestic demand for domestic output and endogenizing the domestic price this should capture important feedback mechanisms missed by previous models

improvement of technical efficiency of firm groups abstract cooperation between firms can never improve the technical efficiency of any firm coalition the directional distance function by virtue of its additive nature is a useful tool that outlines this impossibility in this paper the additive aggregation scheme of input output vectors is generalized according to an aggregator accordingly cooperation between firms may increase the technical efficiency of the firm group this improvement is shown to be compatible with nonjoint semilattice technologies that bring out either output or input weak complementarity firm games are investigated to show that firms may merge on the basis of their inputs due to constraints imposed on outputs conversely they may merge with respect to the outputs they can produce because of limitations imposed on inputs

testing for non jointness in oil and gas exploration a variable profit function approach although the assumption of non joint production is made in a number of areas of economics its empirical validity is seldom examined in this paper we investigate the hypothesis of non jointness in the context of a multiple output production process which utilizes both fixed and variable inputs specifically we test the hypothesis of almost non jointness in the input quantities and prices as well as the hypothesis that inputs and outputs are separable using data on oil and natural gas exploration in alberta canada to facilitate global tests of these hypotheses we estimate a generalized linear generalized leontief variable profit function both with and without the restrictions implied by nonjointness and by separability on the basis of likelihood ratio tests we reject the hypothesis of separability but are unable to reject the non jointness hypothesis based on the maximum likelihood estimates obtained in the non joint case we examine some empirical issues concerning oil and gas exploration activity

exploration economics in a regulated petroleum province the case of the norwegian continental shelf reserve replacement remains a key challenge for the international oil and gas companies as market oriented oil and gas provinces are maturing exploration activity is shifted towards the resource rich regulated regimes outside the oecd regulated oil and gas provinces remain under explored also in econometric terms in this paper we specify and estimate an econometric model of exploration and appraisal drilling for the highly regulated norwegian continental shelf ncs over the period 1965 to 2004 explanatory variables include the oil price cumulative discoveries and open exploration acreage estimated error correction models account explicitly for sluggishness and short term adjustments in exploration drilling we find robust long term oil price effects on exploration activity whereas the short term response is muted on the other hand the temporary influence on exploration drilling from licensing rounds for new exploration acreage is significant and so are the feedback effects from historical exploration success at the same time the longer term impact of these variables is more moderate

natural disaster impacts and fiscal decentralization in recent years many developing countries have sought to implement more decentralized governmental systems despite efforts toward fiscal federalism assessment of decentralization activity has been hampered by lack of consistent cross country measures of effectiveness since governments play a central role in the management of catastrophic events disaster impact data provide an opportunity to evaluate whether government structure is important in limiting disaster losses we use cross country data over the 1970 2005 period to estimate the relationship between decentralization and disaster casualties countries with more decentralized governments experience fewer disaster induced fatalities jel h73 q54

earthquake fatalities the interaction of nature and political economy to say that the level of fatalities resulting from an earthquake is inversely related to a country s per capita level of income is hardly novel what makes our approach novel is that we relate fatalities to both per capita income and the level of inequality that exists within a country through their joint impact on the likelihood of collective action being taken to mitigate the destructive potential of quakes we first develop a theoretical model which offers an explanation as to why in some environments different segments of society prove incapable of arriving at what all parties perceive to be an agreeable distribution of the burden of the necessary collective action causing the relatively wealthy simply to self insure against the disaster while leaving the relatively poor to its mercy following this we test our theoretical model by evaluating 269 large earthquakes occurring worldwide between 1960 and 2002 taking into account other factors that influence a quake s destructiveness such as its magnitude depth and proximity to population centers using a negative binomial estimation strategy with both random and fixed estimators we find strong evidence of the theoretical model s predictions that is while earthquakes themselves are natural phenomena beyond the reach of humankind our collective inaction with respect to items like the creation and enforcement of building codes failure to retrofit structures and to enact quake sensitive zoning clearly plays a part in determining the actual toll that a given quake takes and it is through these and other examples of collective inaction that limited per capita income and inequality couple together with a given quake s natural destructive power in determining the actual fatalities resulting from a quake

explaining the relative decline of agriculture a supply side analysis for indonesia the relative decline of agriculture in growing economies is a central feature of economic development and a major influence on agricultural policies the literature on the causes of this decline has focused on the relative price effects arising from demand factors especially engel s law rather than on supply side influences such as changes in relative factor endowments and differential rates of technical change this article develops a simple structural model of the transformation of the indonesian economy applying an error correction mechanism to capture the dynamics resulting from disequilibria and the costs of adjustment the decline in agriculture s share of gross domestic product is found to be caused much less by the relative price effects typically emphasized in the literature than by capital accumulation and rapid technical change in agriculture

measuring resource scarcity in non renewable resource with an application to oil and natural gas in alberta in this paper annual canadian exploration data are used to estimate a multiple output translog exploration cost function a new definition of depletion is introduced and its estimated coefficient is found to be statistically significant the fitted cost function parameters are then used to obtain estimates of the marginal costs of exploration for oil and gas our estimated marginal exploration costs are smaller than in previour studies because we have allowed for technical progress which offsets the depletion effects these marginal cost estimates are employed along with previous estimates of exploration rents to measure resource scarcity we find some evidence for the increased scarcity of oil and gas in alberta for oil there is a 10 1 per year increase in scarcity along the trend line while for natural gas there is a 2 4 per year increase in scarcity along the trend line

endogenous regional agricultural production technologies technical relationships between six productive factors for ten agricultural produvction regions in the continental united states are examined the applied methodology provides a departure from conventional production methodologies contained in the literature by allowing aggregate technical relationships to be endogenized within the economic system

the shocking origins of political transitions evidence from earthquakes do earthquakes trigger political transitions using a rich panel dataset of 160 countries observed over 1950 2007 we find that earthquake shocks measured in terms of the effect of ground motion amplitude on death toll have two contradicting effects on political change on the one hand earthquakes drive transitions into democracy due to an affective shock which we interpret to be the reaction of citizens by which they hold the incumbent government responsible for earthquake damages on the other hand earthquakes indirectly hasten transitions into a less democratic regime because they increase the income level contemporaneously possibly due to short term emergency response and recovery expenditures and thus raising the opportunity cost of contesting the incumbent government overall we show that while not leading to a full fledged regime transition earthquake shocks open a new democratic window of opportunity but this window is narrowed by improved economic conditions

canadian imports and exports by origin and destination a semi flexible approach this paper models the geographical composition of canadian foreign trade imports and exports are disaggregated into nine regions that together cover most of the oecd area the author uses both the flexible and the semiflexible versions of the symmetric normalized quadratic functional form the reduction in flexibility allows for large savings in the number of parameters and yet it is not incompatible with the data the author s results suggest that there are significant substitution possibilities in canadian foreign trade and that trade diversion towards the united states and efta is likely to be important in the event of increased e c protectionism

cost sharing versus block funding in a federal system a demand systems approach this paper employs a maximizing framework consistent with the axioms of consumer preference to analyze local government s choice of spending on different social services within this framework it is possible to include both block funding and cost sharing intergovernment transfer schemes canada s movement to block funding from the cost sharing method of financing provincial expenditures on hospitals medical care and post secondary education is analyzed the results indicate that the provincial governments actions are generally consistent with a significant maximizing model of consumer behavior and that the change to block funding had a significant impact on real provincial funding of some previously cost shared social services

the performance and competitive effects of school autonomy this paper studies a recent british reform that allowed public high schools to opt out of local authority control and become autonomous schools funded directly by the central government schools seeking autonomy had only to propose and win a majority vote among current parents almost one in three high schools voted on autonomy between 1988 and 1997 and using a version of the regression discontinuity design i find large achievement gains at schools in which the vote barely won compared to schools in which it barely lost despite other reforms that ensured that the british education system was by international standards highly competitive a comparison of schools in the geographic neighborhoods of narrow vote winners and narrow vote losers suggests that these gains did not spill over

non joint technologies the hypothesis of non jointness in input quantities separate production functions is well known and it plays an important role in many areas of economics in this paper we define three additional forms of non jointness which have received little or no attention in the literature and which might be relevant for the firm as well as for the representation of the aggregate technology we characterize all forms of non jointness in terms of variable profit and joint cost functions this yields a number of restrictions which are all testable empirically the assumption that production is non joint in input quantities separate production functions inputs allocated between the different production processes plays a crucial role in many areas of economic theory we need only think of international trade theory public finance macroeconomics growth theory or traded non traded good models of international finance in fact it is safe to say that more often than not production is assumed non joint in input quantities in multiple output models little work has been done to test the empirical validity of the assumption of non jointness in input quantities samuelson 1966 studies the characterization of non joint technologies in terms of the transformation function as pointed out by hall 1973 however samuelson s results do not seem very useful for econometric work hall studies the characterization of non jointness in input quantities in terms of the joint cost function this leads to a number of restrictions which can easily be imposed or tested for and which were used in empirical work by burgess 1976 and by kohli 1981 lau 1972 1978 finally characterizes non jointness in input quantities in terms of the profit function besides non jointness in input quantities lau also examines the case of non jointness in output quantities when an input can be cracked into several outputs in this paper we define two additional cases of non jointness and we characterize them in terms of the joint cost function and the variable or normalized restricted profit function the new forms of non jointness that we define may be useful to describe technologies at the level of the firm and may be even more so at the aggregate level some may be useful concepts in other areas of economics as well such as consumer theory by distinguishing between the various forms of non jointness one obtains a number of testable restrictions on the corresponding joint cost or variable profit functions

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

the deadweight costs of taxation in new zealand when revenue is raised through taxation a number of costs are imposed on the community the most obvious of these is the cost accounted for by the amount of the revenue a cost which is borne by consumers and producers in the particular market in which the tax is imposed looking at the community as a whole this cost is offset to some extent by gains to those who benefit from the expenditure financed by the revenue however important additional costs may arise from changes in behaviour induced by taxation these incentive costs will be incurred if people tum to less preferred substitutes as a result of taxation or employ less satisfactory methods of production losses created in this way are known as deadweight costs or are sometimes referred to as the excess burden of taxation the size of deadweight losses is influenced by a range of factors but they are likely to be largest when the actions of producers and consumers are highly responsive to after tax prices when existing marginal tax rates are high and when savings are highly responsive to after tax returns since the responsiveness of economic activity to changes in after tax prices is the critical determinant of the size of deadweight costs a major part of this study has been concerned with obtaining estimates of the key consumer and producer price elasticities these elasticity estimates are then a key input into a small scale general equilibrium model from which deadweight cost estimates for new zealand are derived making use of duality theory the small scale general equilibrium model equates supplies of goods from producers with the demand for them from consumers and the government consumer and government budget constraints are included and the balance of payments on current account and the budget deficit are specified exogenously producers supplies are specified as producer price derivatives of the profit

an aggregator model of canadian export supply and import demand responsiveness the aggregate canadian technology is modeled by a gnp function with four export and four import components included by the use of aggregator functions and a two stage estimation process the recently developed symmetric generalized mcfadden functional form is used at both the aggregator and gnp function levels the aggregate export own price elasticity is found to be 1 67 in 1970 while the import own price demand elasticity is 1 62 increases in the prices of both imports and labor are found to decrease the supply of exports while exports are found to be complementary to the output of domestic sales supply

u s technology and the specific factors model abstract this paper reports empirical estimates of one of the most popular models of internaional trade theory the specific factors model the two outputs consumption goods and investment goods and two factors labor and capital are considered labor is assumed to be mobile between sectors while capital is assumed to be sector specific assuming that the relative supplies of the two types of capital are constant through time the model can be estimated with aggregate data even though the sector specific capital stocks are not observable empirical results show that the model does substantially better than under the heckscher ohlin production structure

supply demand and technology in a multiproduct industry texas field crops the purpose of this paper is to examine the structure of agricultural production for six texas field crops cotton grain sorghum wheat corn rice and hay which account for nearly 95 of recent field crop value specific objectives are to a test the structure of technology to determine i if output and input utilization choices for individual products are independent of production decisions about other outputs and ii if products and or inputs can be consistently aggregated b estimate a coherent set of interrelated supply functions for the six commodities and input demand functions for fertilizer and hired labor because the empirical focus of this paper is specific to one state the results will be of limited value for interpreting specific production relationships elsewhere however the problem is of common interest in production agriculture and the techniques used demonstrate an important application of dual modeling

decentralization and access to social services in colombia decentralization is meant to improve access to public services but relatively few studies examine this question empirically we explore the effects of decentralization on access to health and education in colombia using an original database covering over 95 of colombian municipalities we show that decentralization improved enrollment rates in public schools and access of the poor to public health services in both sectors improving access was driven by the financial contributions of local governments small increases in own shares of spending led to surprisingly large increases in the access of the poor in both sectors our theoretical model implies that where local information dominates productive efficiency elected local governments will provide services better tailored to local needs decentralizing such services should increase their use by the public together theory and empirics imply that decentralization made the colombian state more accountable it provided local officials with the information and incentives they need to allocate resources in a manner responsive to voters needs and improve the impact of public expenditures

estimating a multiple output generalized box cox cost function cost structure and productivity growth in belgian railroad operations 1950 1986 abstract in this paper we estimate a multiple output generalization of berndt and khaled s box cox cost model to study the cost structure and growth in productivity in belgian railroad operations the estimated model includes several commonly used flexible functional forms as special or limiting cases empirical results indicate approximately constant returns to scale and an average rate of productivity growth of slightly less than 2 over the sample period these findings were robust across cost function specifications casting some doubt on the importance of choosing among flexible functional forms

natural disasters impact factors of resilience and development a meta analysis of the macroeconomic literature abstract we systematize 64 primary studies published in 2000 2013 on the macroeconomic impact of natural disasters by providing ols and generalized ordered probit meta analyses for 1858 and 1991 regressions respectively we investigate how the reported results in the primary studies are influenced by the empirical design the estimation technique and or publication bias we analyze primary studies on disaster direct costs and indirect costs separately according to our meta analysis disasters on average have a negative impact in terms of direct costs and an insignificant impact in terms of indirect costs mst and fat pet peese estimates motivate the meta analyses showing the need for a multivariate approach to consider strong systematic research heterogeneity time based characteristics of the data and publication bias strongly impact on the results of the primary studies thus implying the need for authors to carefully consider the selection of time period and for research institutions to understand the sources of selection bias in disseminated results we argue that further research is necessary on the heterogeneity of results of indirect cost studies and suggest that future studies on the macroeconomic impact of disasters should explore more often the mitigation role of education investment and openness by including these as explanatory variables

on the determinants of fiscal centralization theory and evidence abstract this paper presents a simple model that unifies most of the results of the literature on fiscal federalism the model describes an economy characterized by two levels of government one public good and a private good the predictions of the model are tested by using a new set of measures of fiscal centralization the main findings are that country size income per capita ethnic fractionalization and level of democracy are negatively correlated with the degree of fiscal centralization the model is tested using ols tobit and semi parametric estimators the paper also shows that the variables included in the regression are helpful in the prediction of changes in the level of centralization

a flexible dynamic model of multiproduct technology for the west german economy this paper tests symmetry and negativity of the slutsky matrix for a system of demand functions derived from an aggregate model of multi product technology within a flexible dynamic framework the model considers three inputs and three outputs including imports and exports of intermediate goods we derive a static demand model from a trans log cost function and specify the data generation process by a stationary arx 1 1 model results based on west german quarterly data indicate that the integrability conditions are not rejected when imposed on the arx 1 1 model whereas they are rejected for all the less general dynamic models considered

global warming and german agriculture impact estimations using a restricted profit function this study uses the concept of shadow prices formeasuring the impacts of climate change by estimatinga restricted profit function rather than a cost or aproduction function the explanatory power of the modelis increased because of an endogenous outputstructure using low aggregated panel data on westerngerman farmers the results imply that the agricultural production process is significantly influenced by climate conditions simulation results using a 2 co2 climate scenario show positive impactsfor all regions in germany interestingly the spatialdistribution of the gains is indicating no advantagefor those regions which currently suffer frominsufficient temperature finally the importance ofan endogenous output structure is confirmed by thefinding that the desired product mix will drasticallychange

the adjustment of canadian import demand to changes in income prices and exchange rates the paper provides estimates of the sensitivity of canadian import demand to changes in income prices and exchange rates the model specification allows for the con sideration of long run elasticities as well as the dynamics of short run adjustment of imports to changes in these variables the estimated long run elasticities obtained are similar to those in previous studies it is also shown that canadian imports react quickly to changes in either foreign or domestic prices but that the reaction to changes in exchange rates is much slower

on decentralization and life satisfaction abstract we empirically analyze the impact of fiscal and political decentralization on subjective well being in a cross section of 60 000 individuals from 66 countries more spending or revenue decentralization raises well being while greater local autonomy is beneficial only via government consumption spending

fiscal decentralization and natural hazard risks at least to some extent due to pressure from international donors many countries have become more fiscally decentralized the underlying premise being that greater decentralization might improve the provision of local public goods and services we test this proposition by determining whether relatively more decentralized countries fare better when natural disasters strike in terms of its effects on the population overall we find evidence supporting our maintained hypothesis though the effect appears much more robust in developing countries

production theory technological change and the demand for imports aggregate import demand functions for switzerland 1948 1976 are estimated jointly with the supply and or demand functions for domestic outputs and inputs joint estimation not only yields more efficient estimates than single equation methods but it also ensures that the derived demand and supply functions are consistent with the underlying technology two specifications are examined one of them stressing the smallness and openess of the swiss economy as well as its flexible immigration policy the generalized leontief functional form is used in both cases special attention is devoted to the interpretation of the estimated price elasticities and various hypotheses of technological change are tested for

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

multiple input multiple output production choices and technology in the u s wheat region duality theory motivates a translog expected profit function consistent with multiple products price uncertainty preseason climate constraints acreage control policies and possibly nonhomothetic technology although multiple outputs are allowed enterprise specific data is not necessary instead time series measures of output revenues and expected prices input expenses and prices and fixed input flows are employed appropriate measures of elasticities of choice returns to size and biases in technological change are derived results indicated decreasing returns to size rather limited though complementary responsiveness of choices to price changes and the nature of biases in technological changes

rent dissipation and efficient rationalization in for hire recreational fishing abstract recreational fisheries are increasingly important in fisheries management for some species recreational take rivals or exceeds the amount harvested by commercial fishermen most recreational fisheries are regulated with gear restrictions bag limits and time area closures but there is increasing interest in the market based solutions employed in commercial fisheries this despite the lack of an adequate bioeconomic theory of the joint commercial recreational aspects of many recreational fisheries this paper integrates a detailed production specification with traditional bioeconomic tools in order to better understand the implications of rationalization schemes targeted at the charter sector while confirming some of the qualitative conclusions of the commercial fisheries literature on open access and regulated open access our model also generates rich and novel predictions with respect to input choices the number of vessels and congestion externalities we devise a system of instruments that generate efficient outcomes and extensively discuss issues associated with their real world implementation

decentralization and corruption evidence across countries the relationship between decentralization of government activities and the extent of rent extraction by private parties is an important element in the recent debate on institutional design the theoretical literature makes ambiguous predictions about this relationship and it has remained virtually unexamined by empiricists the authors make a first attempt at examining the issue empirically by looking at the cross country relationship between fiscal decentralization and corruption as measured by a number of different indices their estimates suggest that fiscal decentralization in government spending is significantly associated with lower corruption moreover they find that the origin of a country s legal system for example civil versus common legal code performs extremely well as an instrument for decentralization the estimated relationship between decentralization when so instrumented and corruption is even stronger the evidence suggests a number of interesting areas for future work including investigating whether there are specific services for which decentralized provision has a particularly strong impact on political rent extraction and understanding the channels through which decentralization succeeds in keeping corruption in check

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

can extreme rainfall trigger democratic change the role of flood induced corruption using a new dataset of extreme rainfall covering 130 countries from 1979 to 2009 this paper investigates whether and how extreme rainfall driven flooding affects democratic conditions our key finding indicates that extreme rainfall induced flooding exerts two opposing effects on democracy on one hand flooding leads to corruption in the chains of emergency relief distribution and other post disaster assistance which in turn impels the citizenry to demand more democracy on the other hand flooding induces autocratic tendencies in incumbent regimes because efficient post disaster management with no dissent chaos or plunder might require government to undertake repressive actions the net estimated effect is an improvement in democratic conditions

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

estimating feed utilisation matrices using a cost function approach abstract in this paper a multiple output cost function framework is proposed to construct national feed balances or feed utilisation matrices fums the framework is applied to the belgian compound feed industry for estimation purposes a symmetric generalised mcfadden sgm cost function is selected the cost function is estimated using readily available time series data for the period 1962 1988 unlike previous studies based on duality theory this study exploits the properties of nonjointness in animal feed production to establish a complete fum the allocation of feed ingredients among different livestock categories as well as the composition of various compound feeds are identified also own and cross price elasticities of demand for feed ingredients by type of livestock are reported

production technology costs and multiproduct industry structure an application of the long run profit function to the new england fishing industry the long run multiproduct profit function is developed to provide a more general procedure than the static minimum cost function to examine the technological and cost determinants of multiproduct industry structure and the likely form of any market equilibrium in this approach outputs are endogenous and the long run equilibrium levels of quasi fixed factors are endogenously determined the multiproduct structure of the multispecies new england fishing industry and the likely multi

determinants of agriculture s relative decline thailand during economic development agriculture declines as a proportion of aggregate national output a number of theoretical explanations for this phenomenon have been advanced in the economic literature but their relative historical significance has not been clear this paper develops an econometric methodology to analyze this issue and applies it to time series data for thailand the study investigates the importance of relative commodity prices factor endowments and technical progress as explanations for changing sectoral gdp shares of agriculture manufacturing and services it is concluded that the movement in thailand s aggregate factor endowment relative to labor was the most important determinant of agriculture s relative decline

estimates of marginal discovery costs for oil and gas previous estimates of the finding costs for oil and natural gas reserves have been impeded by the joint cost problem in exploration the solutions have been either to estimate the finding cost for an oil gas aggregate or to allocate total finding costs between oil discoveries and gas discoveries according to rules chosen by the researcher in this paper the joint cost problem is circumvented by estimating a multiple output exploration cost function which is used to calculate the predicted values of marginal finding costs for oil and gas these values are then compared with independent estimates of the shadow prices of reserves for oil and gas to help settle the debate over whether marginal finding costs provide a good measure of rent

decentralization and the productive efficiency of government evidence from swiss cantons advocates of fiscal decentralization argue that among other benefits it can increase the efficiency of delivery of government services this paper is one of the first to evaluate this claim empirically by looking at the association between expenditure decentralization and the productive efficiency of government using a data set of swiss cantons we first provide careful evidence that expenditure decentralization is a powerful proxy for legal local autonomy further panel regressions of swiss cantons provide robust evidence that more decentralization is associated with higher educational attainment we also show that these gains lead to no adverse effects across education types but that male students benefited more from educational decentralization closing for the swiss case the gender education gap

adjustment cost and supply response in a fishery a dynamic revenue function in industries where firms can adjust product mix in response to price changes the process can be delayed by adjustment costs an example is fishermen who change fishing grounds to target different species if adjustment costs are sufficiently large this may hamper the fishermen s response so that regulatory tools that are not efficient in the long run are useful in the short run moreover adjustment costs can influence the choice of species targeted in this paper dynamic supply equations are specified using a revenue function approach different hypotheses about the dynamics of the supply equations are tested for norwegian trawlers

the economics of exploration for non renewable resources abstract the literature on exploration for non renewable resources is surveyed following a brief synopsis in section 2 section 3 focuses on issues related to the world market for resources section 4 considers more microeconomic supply related issues linked to the exploration of the small region or play section 5 turns to the small but growing literature on exploration as a learning process related to r d the latter sections pay particular attention to empirical and policy aspects

allocatable fixed inputs and two stage aggregation models of multioutput production decisions allocation decisions for a fixed input such as land are incorporated into a two stage aggregation model of multioutput production decisions the resulting two stage model is more realistic and is as tractable for empirical research as the standard model

technology and public goods abstract this paper presents a theory of public goods based on production theory where public goods are viewed as inputs to the production process we examine the pure case of public inputs no private inputs as well as the mixed case private and public inputs we show how the case of public inputs is related to certain forms of nonjoint production and we characterize it in terms of variable profit and joint cost functions comparative statics results are derived graphically in the two by two case

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

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

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

global earnings inequality 19702015 we estimate trends in global earnings dispersion across occupational groups using a new database covering 66 developed and developing countries between 1970 and 2015 our main finding is that global earnings inequality has declined primarily during the 2000s when the global gini coefficient dropped nearly 10 points and the earnings share of the world s poorest half doubled decomposition analyses emphasize the role of income convergence between poor and rich countries and that earnings have become more similar within occupations in traded industries sensitivity checks show that the results are robust to varying real exchange rates inequality measures and population definitions

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

an analysis of short run response of export and domestic agriculture in sub saharan africa abstract short run responses of export and domestic shares of total agricultural output to changes in stocks of domestic savings sav development assistance oda private foreign commercial capital pfx and other variables is investigated a profit function approach is used time series data for 19 sub saharan african countries are pooled into three panels using similarities in changes in economic policy regime statistical evidence suggests that for the panel of countries that were undertaking liberalized economic reforms the slope coefficients of some of the variables in the models have changed significantly between 1970 1980 and 1981 1993 for the 1981 1993 period the impacts of oda pfx and sav on export and domestic shares were different for this panel the effect of increases in agricultural labor was different across the three panels there is also evidence that productivity growth in the export agriculture sub sector is negative in all the groups it is recommended that to halt the decline in export share of agricultural output in the group of countries that have undertaken substantial improvements in economic policy environment efforts must be made to reduce the negative impact of domestic savings and agricultural labor while at the same time working to reduce the bias of development assistance against food security