the secondary market and the international debt problem abstract the objective of this study is to analyze the new secondary market of developing country debt we provide a brief description of the market participants instruments and purposes an analysis of prices in the secondary market follows we are especially concerned about the recent plunge in secondary market prices and whether it reflects fundamentals such as movements in debt to export ratios and suspensions of interest payments or simply the illiquidity of the market we find that both sets of factors are involved and as a result conclude that prices on the secondary market are probably below their long run equilibrium values in the next section we review the risks inherent in using the secondary market for debt from a developing country point of view and discuss the market s near term potential growth we conclude with some general remarks about the role of the secondary market in resolving the international debt problem that is in restoring capital flows to developing countries

an environmental performance index for products reflecting damage costs abstract several studies have demonstrated how to use dea data envelopment analysis based techniques to estimate environmental performance indices none of these studies however are taking information on the environmental damage costs of the pressure types considered into account this study is bridging a gap between environmental indices founded in physical pressures and damage costs founded in welfare economics the aim of the paper is twofold first to demonstrate how to implement the information on environmental damage costs within a dea based environmental performance index and second to estimate these indices at product level by using danish input output data and environmental data from 1997

does an endogenous relationship exist between environmental and economic performance a resource based view on the horticultural sector the aim of this paper is to analyse the relationship between environmental and economic performance from the resource based theory within firms of the fresh fruit and vegetables sector this study considers that the adoption of environment friendly practices has a greater influence on firms opportunities and abilities in the agricultural sector than in manufacturing sectors and leads to closer links between performance variables the reference for this empirical analysis is a panel data of horticultural farming marketing firms in spain the voluntary environmental programmes and the heterogeneity of their application lead us to regard acquiring a competitive advantage as a relevant driver to improve environmental performance in this sector a simultaneous equations model is suggested reflecting the differential environmental effect and the assumption of endogeneity among variables the results show a positive impact of environmental differentiation on profitability and market share also suggesting that the perception of this positive experience implies greater environmental performance

rational ponzi games when can a government run a rational ponzi game i e issue debt and never pay back any interest or principal the transversalit y condition of each individual implies that such schemes require an i nfinity of lenders given this horizons are unimportant ponzi games cannot be ruled out by assuming that agents have infinite horizons the authors point out both the basic similarity of and some key diff erences between rational ponzi games and asset price bubbles or fiat money regarding international debt the analysis implies that what matters for the feasibility of rational ponzi games are conditions in the lenders not the borrowers economy copyright 1988 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

nonlinear valuation under credit funding and margins existence uniqueness invariance and disentanglement abstract since the 2008 global financial crisis the banking industry has been using valuation adjustments to account for default risk and funding costs these adjustments are computed separately and added together by practitioners as if the valuation equations were linear this assumption is too strong and does not allow to model market features such as different borrowing and lending rates and replacement default closeout hence we argue that the full valuation equations are nonlinear and this paper is devoted to studying the nonlinear valuation equations introduced in pallavicini et al 2011 we illustrate all the cash flows exchanged by the parties involved in a derivative contract in presence of default risk collateralisation with re hypothecation and funding costs then we show how to obtain semi linear pdes or forward backward stochastic differential equations fbsdes from present valuing said cash flows in an arbitrage free setup and we study the well posedness of these pdes and fbsdes in a viscosity and classical sense moreover from a financial perspective we discuss cases where classical valuation adjustments xva can be disentangled we show how funding costs are offset by treasury valuation adjustments when one takes a whole bank perspective in the valuation while the same costs are not offset by such adjustments when taking a shareholder perspective we show that although we use a risk neutral valuation framework based on a locally risk free bank account our final valuation equations do not depend on the risk free rate finally we show how to consistently derive a netting set valuation from a portfolio level one

non constant discounting in finite horizon the free terminal time case abstract this paper derives the hjb hamilton jacobi bellman equation for sophisticated agents in a finite horizon dynamic optimization problem with non constant discounting in a continuous setting by using a dynamic programming approach special attention is paid to the case of free terminal time strotz s model a cake eating problem of a non renewable resource with non constant discounting is revisited a consumption saving model is used to illustrate the results in the free terminal time case

multi factor performance measure model with an application to fortune 500 companies abstract the paper develops tools for reconciling diverse measures which characterize the financial performance of the fortune 500 companies the technology of data envelopment analysis dea is employed to determine a multi factor financial performance model which inherently recognizes tradeoffs among various financial measures this study offers an alternative perspective and characterization on the performance of the fortune 500 companies it is shown that the top ranked companies by revenue do not necessarily have top ranked performance viewed as being multidimensional only about 3 companies were operating on the best practice frontier substantial technical and scale inefficiencies are found decreasing returns to scale drs are uncovered among the relatively large revenue top ranked companies the study of congestion shows that a reduction in current levels of employees assets and equity may actually increase revenue and profit levels factor specific measures within the framework of multidimensional measure are developed to further study the performance of companies and industries the performance of best practice frontier companies is analyzed by constructing reference share measures which indicate the role each frontier company plays in evaluating non frontier companies finally the reliability of the best practice frontier is examined

efficiency analysis for exogenously fixed inputs and outputs we evaluate by means of mathematical programming formulations the relative technical and scale efficiencies of decision making units dmus when some of the inputs or outputs are exogenously fixed and beyond the discretionary control of dmu managers this approach further develops the work on efficiency evaluation and on estimation of efficient production frontiers known as data envelopment analysis dea we also employ the model to provide efficient input and output targets for dmu managers in a way that specifically accounts for the fixed nature of some of the inputs or outputs we illustrate the approach using real data for a network of fast food restaurants

some models for estimating technical and scale inefficiencies in data envelopment analysis in management contexts mathematical programming is usually used to evaluate a collection of possible alternative courses of action en route to selecting one which is best in this capacity mathematical programming serves as a planning aid to management data envelopment analysis reverses this role and employs mathematical programming to obtain ex post facto evaluations of the relative efficiency of management accomplishments however they may have been planned or executed mathematical programming is thereby extended for use as a tool for control and evaluation of past accomplishments as well as a tool to aid in planning future activities the ccr ratio form introduced by charnes cooper and rhodes as part of their data envelopment analysis approach comprehends both technical and scale inefficiencies via the optimal value of the ratio form as obtained directly from the data without requiring a priori specification of weights and or explicit delineation of assumed functional forms of relations between inputs and outputs a separation into technical and scale efficiencies is accomplished by the methods developed in this paper without altering the latter conditions for use of dea directly on observational data technical inefficiencies are identified with failures to achieve best possible output levels and or usage of excessive amounts of inputs methods for identifying and correcting the magnitudes of these inefficiencies as supplied in prior work are illustrated in the present paper a new separate variable is introduced which makes it possible to determine whether operations were conducted in regions of increasing constant or decreasing returns to scale in multiple input and multiple output situations the results are discussed and related not only to classical single output economics but also to more modern versions of economics which are identified with contestable market theories

agriculture s environmental externalities dea evidence for french agriculture the existence of persistent technical inefficiency offers the opportunity for a free lunch not typically implied by the neoclassical theory of the firm when external effects are related to the use of particular inputs reduction of persistent technically inefficient levels of input use represents a means of reducing external impacts an important example is found in agriculture where substantial environmental impacts are generated by particular inputs within this context this paper considers the usefulness of data envelopment analysis dea for estimation of potential input reductions and assessment of potential reductions of environmental impacts of agricultural inputs an application for french cereal production provides estimates that indicate that substantial potential exists for reduction of input use and environmental impacts

agricultural productivity of the spanish regions a non parametric malmquist analysis productivity growth for the agricultural sectors of the 17 spanish regions over the period 1977 88 is studied using non parametric programming techniques productivity changes based on conventional inputs are linked to other economic geographic and institutional issues average technical change in the spanish regions grew at an annual rate of 2 9 but with great regional variation this paper presents a clear characterization of areas with greater technical progress and the regions with technical regress

are the heavily indebted countries solvent tests of intertemporal borrowing constraints abstract this paper investigates whether the heavily indebted countries hics in consideration of their external debt repayments remain solvent direct tests of the solvency condition derived from the usual intertemporal budget constraints shed light on the sustainability of their current policies the findings are twofold first the hics seem to have a debt overhang problem second in east and southeast asian countries except philippines the solvency conditions are satisfied these results give a rationale for the debt reduction plan a k a the brady plan and the empirical support of the debt overhang hypothesis

anomalies in intertemporal choice evidence and an interpretation research on decision making under uncertainly has been strongly influenced by the documentation of numerous expected utility eu anomalies behaviors that violate the expected utility axioms the relative lack of progress on the closely related topic of intertemporal choice is partly due to the absence of an analogous set of discounted utility du anomalies we enumerate a set of du anomalies analogous to the eu anomalies and propose a model that accounts for the anomalies as well as other intertemporal choice phenomena incompatible with du we discuss implications for savings behavior estimation of discount rates and choice framing effects

are hospitals seasonally inefficient evidence from washington state efficiency measurement has been one of the most extensively explored areas of health services research over the past two decades despite this attention few studies have examined whether a provider s efficiency varies on a monthly quarterly or other sub annual basis this article presents an empirical study that looks for evidence of seasonal inefficiency using a quarterly panel of general acute care hospitals from washington state we find that hospital efficiency does vary over time however the nature of this dynamic inefficiency depends on the type of efficiency being measured our results suggest that technical and cost efficiency vary by quarter allocative and scale efficiency also vary on a quarterly basis but only if the data are jointly disaggregated by quarter and another firm specific factor such as size or operating status thus future research corporate decisions and government policies designed to improve the efficiency of hospital care need to account for seasonal trends in hospi

on the sustainability of external debt is debt relief enough elaborating on pasinetti 1998 the geometry of debt sustainability gds represents an analytical tool for the analysis of the long term sustainability of foreign debt the paper focuses on debt sustainability in low income countries which face several major challenges simultaneously achieving economic growth consolidating human development goals and meeting regular debt service payments the gds reveals how the structural aspect of debt sustainability as indicated by trends in the non interest current account is closely interlinked with sustainability from a financial point of view as indicated by the relationship between the growth and the interest rate the gds shows why both debt cancellation and additional aid are necessary to give indebted low income economies a chance to improve their long term economic viability

the management of the developing countries debt guidelines and applications to brazil some principles which may be useful in formulating a debt management strategy are articulated there are four major policy recommendations 1 stretch out the repayment of the debt 2 monitor both exports and gdp 3 ignore the capital loss of the creditors and 4 watch the domestic deficit the goal of the recommendations is the maximization of the intertemporal welfare of the country under the constraint that it services its debt

singular dividend optimization for a linear diffusion model with time inconsistent preferences abstract with the advancement of behavioral economics the use of exponential discounting for decision making in neoclassical economics has been questioned since it cannot provide a realistic way to explain certain decision making behavior the purpose of this paper is to investigate strategic decision making on dividend distribution policies of insurance companies when the management adopts a more realistic way for discounting namely stochastic quasi hyperbolic discounting the use of this more realistic way for discounting is motivated by some recent developments in behavioral economics a game theoretic approach is adopted to establish economic equilibrium results namely subgame perfect markov equilibrium strategies it is shown that 1 under certain mild technical conditions the barrier strategy with an optimal barrier which is widely used in the traditional approach to optimal dividend problems is a perfect markov equilibrium strategy 2 the optimal barrier is lower than the barrier of an optimal strategy obtained from the respective time consistent optimal dividend problem and 3 the solution based on the barrier strategy does not exist in some situations

fiscal policy and the current account deficits and trade jose vinals does the balance of payments act as an external constraint on the design of domestic economic policy in practice most governments believe it does yet popular discussion is sometimes confused this paper begins by evaluating the nature of the external constraint and the extent to which it can adequately be measured by the current account of the balance of payments it is often argued that a fiscal expansion will increase employment it is also widely held that a fiscal expansion necessarily leads to a deterioration of the current account while these propositions may hold in specific circumstances neither is generally true the theoretical basis of the two propositions is examined and compared with recent international experience when important changes in fiscal stance occurred the popular presumptions are confirmed by recent experience in the us the uk and germany but france is a counterexample to the first and spain to the second the important policy implication is that one can identify both in theory and in practice clear circumstances in which expansionary fiscal policy is appropriate and will not be thwarted by external considerations

economic versus environmental improvement potentials of danish pig farms this article demonstrates how economic and environmental improvement potentials of danish pig farms can be estimated using data envelopment analysis dea to avoid some of the problems associated with the definition of undesirable outputs environmental variables are included as nutrients applied with manure and nutrients removed with the crops these environmental variables are combined with a series of economic variables including the costs of fertilizer furthermore subvector efficiency and a two step analysis are used in order to consider economic and environmental technical efficiency separately the empirical results show considerable improvement potentials especially on the environmental variables sensitivity studies validate that these results are robust to possible uncertainties in the measurement of the environmental variables

product market regulation innovation and distance to frontier this article contributes to the literature on competition and innovation it tests the impact of market regulation on innovation conditional to the closeness to the technological frontier with a panel of 15 industries for 17 oecd countries over the period 1979 2003 one of the main conclusions of this literature is that of a negative impact of regulation growing in intensity with the proximity to the frontier a simple model of innovation and growth shows that one should not necessarily expect this result empirical tests on a variety of pecifications show that the impact of regulation can be positive when industries are close to the technological frontier we argue that this result is in fact line with previous evidence

sugar beet for bioethanol production an approach based on environmental agricultural outputs abstract the eu imports both bioethanol and the raw material needed to produce it thirty percent of bioethanol is produced from sugar beets in the eu however sugar beet cultivated area and yields have fallen due to the 2006 sugar regime reform given the potential uncertainty about the future for sugar beet farmers biofuels may represent an alternative market this paper analyses potential contribution to the efficiency in terms of environmental output of the sugar beet crop both when production is oriented toward bioethanol and regarding the use of input an empirical application is performed in spain by data envelopment analysis dea the results show that 4 of farms have full technical efficiency while the rest have an average efficiency of 55 9 the figures show that inputs can be reduced over 40 and also show the low average level of input use efficiency in addition it cannot be said that there is a relationship between efficiency and farm scale the consideration of aspects such as the environmental advantages of using sugar beet production for bioethanol can open new lines of action to support this crop in the eu in addition boosting sugar beet production may reduce potential dependency on importation

public goods and private interests understanding non residential demand for green power this article presents the results of the first large scale mail survey of non residential green power customers in the united states the survey explored the motivations attitudes and experiences of 464 business non profit and public sectorcustomers that have voluntarily opted to purchase and frequently pay a premium for renewable electricity results of this study should be of value to marketers interested in targeting these customer segments to policymakers interested in fostering and understanding non residential demand for green power and to academics pondering the motivations for firms to engage in such voluntary environmental initiatives

benchmarking urban energy efficiency in the uk this study asks what is the best way to measure urban energy efficiency there has been recent interest in identifying efficient cities so that best practices can be shared a process known as benchmarking previous studies have used relatively simple metrics that provide limited insight on the complexity of urban energy efficiency and arguably fail to provide a fair measure of urban performance using a data set of 198 urban uk local administrative units three methods are compared ratio measures regression residuals and data envelopment analysis the results show that each method has its own strengths and weaknesses regarding the ease of interpretation ability to identify outliers and provide consistent rankings efficient areas are diverse but are notably found in low income areas of large conurbations such as london whereas industrial areas are consistently ranked as inefficient the results highlight the shortcomings of the underlying production based energy accounts ideally urban energy efficiency benchmarks would be built on consumption based accounts but interim recommendations are made regarding the use of efficiency measures that improve upon current practice and facilitate wider conversations about what it means for a specific city to be energy efficient within an interconnected economy

estimating technical and allocative efficiency in the public sector a nonparametric analysis of dutch schools abstract public sector output provision is influenced not only by discretionary inputs but also by exogenous environmental factors in this paper we extended the literature by developing a conditional dea estimator of allocative efficiency that allows a decomposition of overall cost efficiency into allocative and technical components while simultaneously controlling for the environment we apply the model to analyze technical and allocative efficiency of dutch secondary schools the results reveal that allocative efficiency represents a significant 37 percent of overall cost efficiency on average although technical inefficiency is still the dominant part furthermore the results show that the impact of environment largely differs between schools and that having a more unfavorable environment is very expensive to schools these results highlight the importance of including environmental variables in both technical and allocative efficiency analysis

evaluating the operational efficiency of major ports in the asia pacific region using data envelopment analysis in recent years as competition among international ports has intensified the impartial and objective evaluation of port operational efficiency has become increasingly important in enabling each individual port to understand its peculiar strengths and weaknesses as well as any immediate threats or opportunities that may affect its competitive environment this study applies ccr model bcc model and 3 stage dea model to evaluate the changes in efficiency that have taken place between 1998 and 2001 in 10 ports in the asia pacific region using cross period data the empirical results show that different model will lead to different result on average the efficiency estimated by 3 stage dea procedure is the highest while ccr efficiency is the lowest it should be noted that the efficiencies based on ccr and bcc model are somewhat lower than the 3 stage dea approaches because they do not take the environmental factors managerial inefficiency and statistical noises into account

anticipating the consequences of school reform a new use of dea we use dea type linear programming techniques to simulate a basic component of educational reform eliminating restrictions on the allocation of school personnel our technique allows us to identify potential output gains or equivalently potential cost savings from reform we can also identify which personnel groups are likely to gain and lose under this reform when we apply our model to a sample of texas school districts we find evidence that the educational establishment has substantial economic rents to protect from school reform and that the primary beneficiaries of reform are likely to be affluent school districts with few minority students the technique which relies on the relationship between the direct and indirect distance functions can be easily generalized to measure the potential gains from removing other input restrictions such as union work rules environmental regulations or deed restrictions

estimating most productive scale size using data envelopment analysis abstract the relation between the most productive scale size mpss for paparticular input and output mixes and returns to scale for multiple inputs multiple outputs situations is explicitly developed this relation is then employed to extend the applications of data envelopment analysis dea introduced by charnes cooper and rhodes ccr to the estimation of most productive scale sizes for convex production possibility sets it is then shown that in addition to productive inefficiencies at the actual scale size the ccr efficiency measure also reflects any inefficiencies due to divergence from the most productive scale size two illustrations of the practical applications of these results to the estimation of most productive scale sizes and returns to scale for hospitals and stem electric generation plants are also provided emphasize the advantage of this method in examining specific segments of the efficient production surface

external debt inflation and the public sector toward fiscal policy for sustainable growth which tradeoffs are involved in formulating an external debt strategy should expenditure be cut to improve the current account or will this reduce future output growth thus undermining the benefits of any debt reduction are there alternatives that allow satisfactory output growth without jeopardizing creditworthiness how can the necessary surplus of savings over investment be brought about at levels of investment high enough to sustain output growth should the government contribute to the internal adjustment by reducing its deficit macroeconomic targets for inflation and growth and creditworthiness constraints on debt issue impose restrictions on the extent to which deficits can be financed can the government cover the deficit within these targets and constraints the absence of such consistency forebodes future policy change and so undermines the credibility of the adjustment program the author uses empirical work on turkey to illustrate the interactions between fiscal deficits and the macroeconomic variables upon which fiscal consistency hinges

the sustainability of current account deficits abstract this paper proposes a new method of determining whether a country is likely to be able to sustain its current account deficits without defaulting on its debt it is based on the notion of the national intertemporal budget constraint ibc which is derived from a forward solution of the balance payments identity although the problem is formally similar to that considered in the literature on the government ibc a more general solution is obtained by allowing the primary deficit to be endogenous instead of exogenous it is shown that the existence of negative feedback from net indebtedness to the primary deficit a wealth effect is sufficient this method supplants the ad hoc approach previously adopted in the current account literature whilst many of the same variables appear a formal structure for analysing them is provided

how to evaluate the solvency of an indebted nation reassessing third world debt daniel cohen the conventional measures of the solvency of developing countries usually rely on such indices as debt export or debt gnp ratios the underlying rationale is that to be solvent a country must eventually pay back all its debt this paper starts from two simple but important remarks first solvency need not require the full eventual repayment of all debt continued borrowing may be possible rather what is required is that a country s debt accumulation does not outstrip its capacity to make future repayments and the capacity of lenders to make future loans second solvency therefore cannot be defined independently of the growth rates of lender and borrower countries nor of the interest rate at which past debts accumulate putting these ideas together a new solvency index is proposed and this is computed for all the less developed countries this new index suggests a less gloomy view of the international debt crisis the largest debtors may have already accomplished an adjustment which is more than sufficient to restore their solvency when this is properly computed to investigate this claim there is a detailed analysis of the policies recently adopted in argentina and brazil

energy efficiency measurement in agriculture with imprecise energy content information abstract measuring energy efficiency is crucial when planning energy reduction policies however decision makers are understandably reluctant to act in the absence of solid data and results supporting a policy position this paper proposes a methodology to measure the energy efficiency of farms based on the data envelopment analysis dea approach in a manner similar to the cost framework we decompose energy efficiency measurements into technical and allocative efficiencies in energy contents of inputs in this study we replace input prices used in traditional economic efficiency measurements by their energy content we use the energy efficiency model to explore the optimal input mix that produces the current outputs at minimum energy consumption we demonstrate that this decomposition can help policy makers design accurate energy policies however the uncertainty of the data and more particularly the energy content of the inputs leads us to recommend using the methodologies to calculate the bounds of efficiency to obtain more plausible and robust results based on our analysis energy efficiency is not a fixed value and policy makers should consider it with caution we use a 2007 database of french farms specialised in field crops for empirical illustration

international regulations and environmental performance this article employs the data envelopment analysis dea approach to compute the environmental performance of all but two organisation for economic co operation and development oecd countries it is found that although the environmental performance of countries differs over time poland and hungary are the two best performers for all periods while italy japan austria and switzerland are ranked among the worst the effect of international regulations and some observed characteristics of countries on environmental performance are also investigated international regulations are reported to have a positive effect on environmental performance

consumption and portfolio rules for time inconsistent investors abstract this paper extends the classical consumption and portfolio rules model in continuous time merton r c 1969 lifetime portfolio selection under uncertainty the continuous time case review of economics and statistics 51 247 257 merton r c 1971 optimum consumption and portfolio rules in a continuous time model journal of economic theory 3 373 413 to the framework of decision makers with time inconsistent preferences the model is solved for different utility functions for both naive and sophisticated agents and the results are compared in order to solve the problem for sophisticated agents we derive a modified hjb hamilton jacobi bellman equation it is illustrated how for crra functions within the family of hara functions logarithmic and power utilities the optimal portfolio rule does not depend on the discount rate but this is not the case for a general utility function such as the exponential cara utility function

current account deficit sustainability the case of barbados this article investigates the sustainability of the current account deficit in barbados over the period 1960 to 2006 various unit root and cointegration techniques are employed to determine whether the country is satisfying its intertemporal budget constraint ibc the cointegration regressions suggest that the current account of barbados is sustainable and that deviations from long run equilibrium between real exports and imports are corrected in the short run with imports making the adjustment

prosocial behavior private contributions to agriculture s impact on the environment private provision of public environmental benefits is considered with a theory of prosocial behavior that elaborates the roles of nonhedonistic values held by agents as well as the functional interaction between private good and public good production processes the theory also identifies the conditions under which public environmental goods will be privately supplied and motivates an empirical approach models of environmental effort in agriculture are estimated based on a survey of u s field crop farmers results confirm the role of hedonistic motivation of environmental effort and provide very weak evidence of a role of nonhedonistic values

landownership and the adoption of minimum tillage full owner operators and landowners with small holdings have lower minimum tillage adoption rates on cultivated cropland than do other landownership groups after accounting for land quality and regional location nonfamily corporate structure does not significantly influence the adoption decision these conclusions about minimum tillage adoption were obtained from a logit model using 7 649 cultivated cropland observations from across the united states this study indicates that small operating size poses more of an obstacle to minimum tillage adoption than does separation of ownership from farm operation

how should structural adjustment programs be designed abstract more than seven years have elapsed since the onset of the generalized debt crisis of 1982 yet the affected countries have still not managed to stabilize their economies these countries must now attempt structural adjustment in the midst of pervasive macroeconomic and political instability structural adjustment packages should be designed with this reality in mind this paper argues that structural adjustment programs should strive for sustainability rather than the economic liberalization that they presently stress illiberal policies which do not damage overall macro stability are preferable to liberal policies which are inherently unsustainable or engender macro instability liberalization programs that are not sustainable are likely to bring few benefits but have high costs in terms of private investment the paper discusses some of the chief implications of this opinion for the design of adjustment programs

farmer risk assessment for voluntary insecticide reduction abstract we develop a theoretical basis for voluntary reduction in insecticide use and quantify the subjective value farmers place on reducing environmental risk the indirect utility model is used to quantify the acceptable financial cost of eliminating one insecticide application in return for avoidance of moderate risk to the environment the mean valuation in illinois iowa nebraska and ohio usa is 8 25 per acre acceptable yield loss increases with importance of environmental goods with formal education and with farming experience valuation increases with total expenditure on insecticides up to 89 per acre decomposition of the tobit model used in estimation indicates that voluntary programs should target intensification rather than extensification of participation to maximize effectiveness

developing a social perspective to farm performance analysis abstract this paper examines how traditional farm productivity analysis can be extended to produce a performance measure from the perspective of society a biophysical model is used to measure inputs from the environment which are combined with conventional marketed inputs to develop an environmentally sensitive malmquist productivity index to determine social productivity growth data envelopment analysis dea is used to analyze data collected from selected farms in south east australia and includes a measure of leaching and run off as a proxy measure of the impact the application of fertilizers has on ground and surface water the results show measured productivity growth increases for some farms and decreases for others when environmental factors are considered

piecewise loglinear estimation of efficient production surfaces linear programming formulations for piecewise loglinear estimation of efficient production surfaces are derived from a set of basic properties postulated for the underlying production possibility sets unlike the piecewise linear model of banker charnes and cooper banker r d a charnes w w cooper 1984 models for the estimation of technical and scale inefficiencies in data envelopment analysis management sci 30 september 1078 1092 this approach permits the identification of increasing marginal products and estimation of the classical s shaped production functions methods are also provided for estimating technical inefficiencies and other production characteristics such as rates of substitution and transformation marginal products returns to scale and most productive scale sizes on the basis of observed production data the results of a simulation study are reported to illustrate the usefulness of this estimation method in empirical applications when there are a priori reasons to expect increasing marginal products in some regions of the production function a modified model is provided to extend this analysis to the situation of non competing outputs addressed by the bi extremal model of banker charnes cooper and schinnar banker r d a charnes w w cooper a schinnar 1981 a bi extremal principle for frontier estimation and efficiency evaluation management sci 27 december 1370 1382

ramsey meets laibson in the neoclassical growth model the neoclassical growth model is modified to include a variable rate of time preference with no commitment ability and log utility the equilibrium features a constant effective rate of time preference and is observationally equivalent to the standard model the extended framework yields testable linkages between the extent of commitment ability and the rates of saving and growth the model also has welfare implications including the optimal design of institutions that facilitate household commitments steady state results are obtained for general concave utility functions and some properties of the transitional dynamics are characterized for isoelastic utility

external debt net transfers and growth in developing countries abstract the paper argues for the relevance of the concept of net transfers to analyze the growth constraints in heavily indebted developing countries a conceptual shift is proposed in analyzing the sources of investment financing from the traditional dichotomy between foreign savings and national savings toward a more relevant dichotomy between net real resource transfers and domestic savings at constant prices the consequences of introducing the foreign exchange constraint and the fiscal constraint for the analysis of the impact of foreign transfers are also explored

small is not that beautiful after all measuring the scale efficiency of tunisian high schools using a dea bootstrap method allocation of resources to schools in a centrally managed state system as the tunisian one should depend on the performance of the individual institutions the optimal size is of crucial importance in this context and we need accurate measurement for sound policies this article discusses and implements a nonparametric statistical test procedure for organization scale efficiency this procedure allows us to test whether the observed scale efficiency is optimal or not using a smooth bootstrap methodology for efficiency measures estimated using data envelopment analysis dea methods because school principals do not control for the size of their institution i e the capital available at decision time the scale efficiency measures are defined so as to include quasi fixed inputs the results show that scale efficiency measures are subject to sampling variation we also found that the schools that are scale efficient are usually mid sized and large schools when size is measured by the number of students

the indian auto component industry estimation of operational efficiency and its determinants using dea in this paper the performance analysis of the indian auto component industry is carried out from the perspectives of an original equipment manufacturer and a component supplier various efficiency measures are estimated using data envelopment analysis with publicly available financial data on a representative sample of 50 firms the first stage analysis reveals various operational inefficiencies in the auto component industry which are subsequently decomposed into technical input mix and scale efficiencies the study finds evidence that a majority of the inefficient firms are operating in the diminishing returns to scale region and demonstrates potential savings through benchmark input targets a second stage analysis aimed at exploring root causes of inefficiencies finds that substitution of labour for capital could be causing a variety of inefficiencies including the input mix inefficiency in the indian component industry the empirical results also suggest that unlike the global auto supply chain higher average inventories are required for higher operational efficiencies in the indian context contrary to the popular expectations the technology licensing does not show significant influence on efficiency at least in the short term whereas efficient working capital management does result in higher operational efficiencies the study also unearths the need to reform labour laws which are significantly contributing to various inefficiencies in the indian component industry

a comparative application of data envelopment analysis and translog methods an illustrative study of hospital production this paper compares inferences about hospital cost and production correspondences from two different estimation models 1 the econometric modeling of the translog cost function and 2 the application of data envelopment analysis dea while there are numerous examples of the application of each approach to empirical data this paper provides insights into the relative strengths of the estimation methods by applying both models to the same data the translog results suggest that constant reruns are operant whereas the dea results suggest that both increasing and decreasing returns to scale may be observed in different segments of the production correspondence in turn suggesting that the translog model may be averaging diametrically opposite behavior on the other hand by examining the rate of output transformation both models agree that patient days devoted to care of children are more resource intensive than those devoted to adults or to the elderly in addition we compare estimates of technical efficiencies of individual hospitals obtained from the two methods the dea estimates are found to be highly related to the capacity utilization but no such relationship was found for the translog estimates this comparative application of different estimation models to the same data to obtain inferences about the nature of underlying cost and production correspondences sheds interesting light on the strengths of each approach and suggests the need for additional research comparing estimation models using real as well as simulated data

efficiency subsidies and environmental adaptation of animal farming under cap the purpose of this article is to model the interaction between the targets of the current cap environmental adaptation subsidies and efficiency q1 of animal farming to this end we first have to identify the production frontier and relative efficiency level for each animal oriented farm in the sample the production frontier and efficiency index for each type of farm assuming no specific production functions are identified using data envelope analysis dea techniques we then address the relationship between relative efficiency farm size and environmentally friendly behavior by carrying out a nonparametric regression of efficiency on economic size a proxy for the degree of environmental appropriateness and regional dummies calculations of the efficiency of the farms including direct subsidies are compared with the counterfactual exercise in the case in which direct subsidies are not considered finally we look for relations between subsidies and factors such as farm size efficiency and environmentally friendly behavior one key result shows that on average direct payments generally tend to increase efficiency however in most of the cases the mean efficiency decreases as the percentage of direct payments rises direct payments are found to be positively related to environmentally friendly production at least in germany however in general the direct payment system is not sufficient to offset the fact that the less environmentally friendly farms as well as the larger farms are more efficient

how occupied france financed its own exploitation in world war ii can a vanquished country deliver significant resources to its occupier based on the failure of germany to pay its post world war i reparations conventional wisdom generally doubts the possibility yet german reparations represent the exception rather than the rule perhaps the most successful case was the transfer of resources that germany obtained from france during world war ii although they imposed huge payments the victors left the french to decide how to raise the funds after comparing the magnitude of france s payment to other episodes we employ a neoclassical growth model to assess both wartime and postwar policies the burden imposed on the french economy caused it to shrink at a rapid pace curtailing consumption and yielding large debt and money overhangs although vichy france intended to manage the postwar debt burden with higher tax rates the governments following liberation allowed inflation to slash the debt redistributing the adjustment cost higher taxes did not fund the debt but instead paid for expenditures associated with the rise of the welfare state

exploring environmental perspectives in lowland agriculture a q methodology study in east anglia uk abstract the role of agriculture in rural areas is changing significantly in europe with environmental protection and enhancement and provision of amenity and recreation increasingly emphasized both in public debate and in new policy initiatives faced by these shifting priorities it is increasing important to understand how farmers themselves perceive their roles in relation to environmental management in particular as recent research in new institutional economics has shown frey b s 1997 not just for the money edward elgar cheltenham policy assumptions and instruments that are at odds with the underlying motivations of agents may actually reduce achievement of policy objectives if they act to degrade beneficial norms or alter the basis on which agents make choices understanding how farmers conceive of their environmental rights and responsibilities is therefore important in helping to design agri environmental measures that can complement rather than conflict with the underlying normative assumptions that farmers themselves hold this study employs q methodology to investigate the perceptual frameworks of a sample of uk arable and mixed lowland farmers regarding the appropriate way in which to approach the environmental management of agricultural land the q analysis identifies five distinct perspectives on notions of agricultural stewardship we term these environmentalists progressives commodity conservationists jeffersonians and yeomen we discuss the main characteristics of these groups and comment on these results in the context of current uk agri environmental policy which is changing both the presumptions of farmers entitlements to agricultural payments and the expectations pertaining to farmers in relation to environmental responsibilities in conclusion we suggest that q methodology can be a valuable way of demonstrating the nature of the mental frameworks of actors in a particular context and this enables us to formulate some important questions regarding the motivations of land managers in the context of a rapidly changing rural policy

economic efficiency and frontier techniques abstract most of the literature related to the measurement of economic efficiency has based its analysis either on parametric or on non parametric frontier methods the choice of estimation method has been an issue of debate with some researchers preferring the parametric and others the non parametric approach the aim of this paper is to provide a critical and detailed review of both core frontier methods in our opinion no approach is strictly preferable to any other moreover a careful consideration of their main advantages and disadvantages of the data set utilized and of the intrinsic characteristics of the framework under analysis will help us in the correct implementation of these techniques recent developments in frontier techniques and economic efficiency measurement such as bayesian techniques bootstrapping duality theory and the analysis of sampling asymptotic properties are also considered in this paper

the evolution and main determinants of productivity in brazilian electricity distribution 1998 2005 an empirical analysis abstract this paper estimates changes in the productivity of the brazilian electricity distribution sector using data envelopment analysis dea on a panel of 18 firms from 1998 to 2005 the study decomposes the productivity change of these distribution firms in terms of technical efficiency scale efficiency and technical progress this exercise aims to help the understanding of the main determinants of the evolution of productivity focusing its relationship with the restructuring process implemented in the 1990s tfp index records a yearly positive growth rate of 1 3 in the whole period under analysis for all firms technical change was the main component behind this evolution with an average growth of 2 1 per year while technical efficiency presented a yearly negative performance of 0 8 the results prove that in general terms the incentives generated in the reform process do not seem to have led the firms to behave in a more efficient manner

debt sustainability and overadjustment abstract a simple debt accumulation model based on balance of payments identifies is analyzed and used to project debt to export ratios in latin america and africa uo tp 1990 the fundamentals of debt dynamics are shown to be determined by four ratios interest rate to export growth import growth to export growth and the initial debt to export and import to export ratios the relevance of the initial conditions and the importance of import growth on debt dynamics are discussed sustainability of the debt in terms of keeping debt to export ratios on a declining trend is defined and used to quantify the associated amount of excess import restraint in debtor countries two tests are constructed that measure excess restraint i e overadjustment based on the fundamentals of debt dynamics both tests assume that interest rates exceed export growth the first requires a substantial amount of past adjustment effort the second does not but places tighter restrictions on the future commitment that is needed to remain solvent these tests are applied to latin america and to africa both before and after the recent downward oil price shock estimates of excess import restraint are reported

consumption investment strategies with non exponential discounting and logarithmic utility abstract in this paper we revisit the consumption investment problem with a general discount function and a logarithmic utility function in a non markovian framework the coefficients in our model including the interest rate appreciation rate and volatility of the stock are assumed to be adapted stochastic processes following yong 2012a b s method we study an n person differential game we adopt a martingale method to solve an optimization problem of each player and characterize their optimal strategies and value functions in terms of the unique solutions of bsdes then by taking limit we show that a time consistent equilibrium consumption investment strategy of the original problem consists of a deterministic function and the ratio of the market price of risk to the volatility and the corresponding equilibrium value function can be characterized by the unique solution of a family of bsdes parameterized by a time variable

nonmarket transfers and altruism abstract we examine altruistically motivated consumption transfers in an effort to account for nonmarket transfers we find that altruistic linkages lead to autonomous negotiation free transfers and that such transfers positively respond to stronger altruism we also find that given fairly natural assumptions concerning the altruism parameters mutual altruism does not necessarily result in group social harmony even though its rise narrows the conflict range in spite of enhanced transfers prompted by such a rise both parties may end up worse off these results help explain why in some social environments a shift toward market oriented transfers and exchanges may be quicker than in others as the disadvantages decline in utility associated with intragroup altruistic linkages outweigh the advantages