public expenditures and growth the article explores the effects of public expenditures on growth among 73 countries over the 1970 89 period while much of the literature attributes weak growth to public investment and social expenditures which inhibit growth through crowding out and rent seeking the article highlights the contributions that public investment and social expenditures may make to growth the article s econometric analysis suggests that crowding out and rent seeking concerns may have been overstated in the literature

understanding international trade policies an emerging synthesis the international trade problems of the 1980s stimulated an expansion of scholarship on trade policies by economists and political scientists at least four distinct theoretical perspectives weave their way through recent literature that concentrates on the united states emphasizing market conditions policy beliefs and values national political institutions and global structures respectively new studies in each of these traditions advance beyond the work of their predecessors but none of the perspectives has yet proved adequate as a single unifying vehicle nevertheless we can also see clear movement toward a synthesis with single works blending insights from several traditions thus the books under review do not all fall neatly into the familiar exclusive categories of economics or political science the emerging synthesis needs strengthening in several ways including the development of conditioning hypotheses that will reduce remaining apparent confusions

dea and its use in the regulation of water companies abstract this paper begins with an introduction to the basic principles of data envelopment analysis dea dea is a linear programming based method for assessing the productive efficiencies of operating units such as bank branches sales outlets schools or individuals this paper then goes on to describe the use of dea in the regulatory framework regulation employed to safeguard the public interest is increasingly playing an major role in great britain and other countries in the aftermath of the privatisation of publicly owned companies including utilities which still enjoy a good degree of monopoly power this paper gives an account of the use of dea to estimate potential cost savings at water companies in the context of the price review conducted by the regulator of water companies in england and wales in 1994 it also highlights certain generic issues arising in the use of dea in the regulatory context this paper should prove of interest both to those who want to know about dea as a tool in general and to those interested in efficiency measurement under regulation

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

the impact of military burden on long run growth and welfare abstract this paper presents an endogenous growth model to examine how a government s resource allocation between the defense and non defense sectors will govern both economic growth and social welfare we demonstrate that there exists an optimal defense expenditure share that maximizes the economic growth rate but this rate is smaller than the welfare maximizing share this result can be viewed as a possible vehicle to explain why in many developing countries arms limitation and disarmament negotiations usually have low performance even failing

optimal bidding in auctions from a game theory perspective abstract the game theoretic perspective in auction bidding has provided a powerful normative framework for the analysis of auctions and it has generated an impressive volume of research contributions tracing this research we review key recent advances which have greatly expanded our understanding of the operation of auctions and produced a more accurate analysis of mechanism design and optimal bidding we follow various experimental studies which have shown that the predictive power of auction theory remains in many cases limited for this reason we concentrate on research themes which enhance the applicability of auction theory leading to more realistic descriptions of bidding behaviors we identify important innovations which expand the environment of auction bidding and carry us beyond rational decision making we conclude providing directions of future research and discussing their implications

incentive plans for productive efficiency innovation and learning in many industries where production or sales is delegated to a number of subunits the central management faces the classical problem how to induce continuous efficiency improvements organizational learning and transfer of knowledge with a minimum of control exercised this paper draws on recent results regarding regulatory frameworks to construct simple yet powerful incentive schemes for decentralized production under asymmetric information the theoretical foundation is based on principal agent theory cf laffont and tirole econometrica 56 1986 614 641 and extensions to production theory by bogetoft management science 40 1994 959 968 the proposed incentive system is operational and makes use of available information to provide positive incentives for participation in the dynamic development of the entire organization

economic growth and the defense burden in africa and latin america simulations from a dynamic model since e benoit first provided evidence of a link between the rate of economic growth and defense spending a number of scholars have reported their research on the subject their results have been varied some concluding the relationship is positive others concluding the opposite recently some have argued that no general and significant link exists for less developed countries ldcs and have suggested that the varied results are due primarily to varied specifications sample periods and differences among countries 2 s chan goes further by suggesting that researchers deemphasize the search for universal links and concentrate on time series as opposed to cross section analysis he also recommends that explanations of the defense spendingeconomic growth link take into account among other things a country s capacity utilization total foreign receipts and fiscal and monetary policies 3 the point of departure for the research reported here is a paper by r faini p annez and l taylor hereafter faanta 4 their analysis concludes that higher defense burdens are associated with lower growth rates across countries however i will argue that they have either misstated or misinterpreted their primary result and furthermore that there are some serious problems with their analysis and the underlying model these problems aside the faanta model either already includes or can be respecified to include most of the features recommended by chan therefore i will estimate a significantly modified version of their model for african and latin american countries after attempting to replicate their results for these two regions simulations of my model lead to the conclusion that maintaining a larger defense

military expenditures and economic growth in less developed countries an augmented model and further evidence a study of the impact of military expenditures on economic growth and development examines the differences in the results of previous studies which led to contradictory conclusions the authors find that these differences are due to sample variations specificational choices and the different time periods examined the data indicate that there is no consistent statistically significant connection between military spending and economic growth augmentation of the models suggests that military expenditures neither help nor hurt economic growth to any significant extent 2 tables

design competition through multidimensional auctions this article studies design competition in government procurement by developing a model of two dimensional auctions wherefirms bid on both price and quality and bids are evaluated by a scoring rule designed by a buyer three auction schemes first score second score and second preferred offer are introduced and related to actual practices if the buyer can commit to a scoring rule in his best interest the resulting optimal scoring rule underrewards quality relative to the buyer s utility function and implements the optimal outcome for the buyer underfirst and second score auctions absent the commitment power the onlyfeasible scoring rule is the buyer s utility function under which 1 all three schemes yield the same expected utility to the buyer and 2 first and second score auctions induce the first best level of quality which turns out to be excessive from the buyer s point of view

defense spending economic structure and growth evidence among countries and over time there is no way of telling from economic theory whether a greater military effort will slow down or accelerate output growth the results of a single empirical study have been used to support the widely held belief that in poor countries a high share of defense in gdp is associated with a high growth rate this paper shows that as is often the case such conventional wisdom is wrong across countries a greater defense burden is associated with slower growth in a regression equation estimated for 69 countries over some or all of the period 1952 70 an increase of 10 percentage points in the defense burden share of defense in gdp leads to a reduction of annual growth by 0 13 a nontrivial loss as we discuss in detail below growth retardation to approximately the same extent also is recorded in regional regression estimates though precise coefficients differ from area to area besides slowing the growth rate a changing defense burden has other macroeconomic effects for the same sample of countries and time period increases in military spending are associated with lower saving and investment shares in gdp a greater tax burden and a shift in economic activity from agriculture including food production toward the manufacturing sector when estimated econometrically the extent to which defense spending replaces investment is consistent in magnitude with the growth rate reductions mentioned above in describing these results more thoroughly in section i we review informally the channels through which arms spending can affect the growth rate and present a simple formal model in section ii the resulting reduced form equation is estimated empirically in section iii with the findings summarized above to measure other effects of military outlays on the economic structure we go on in section iv to incorporate the defense burden into the regression equations and data

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

data envelopment analysis on a relaxed set of assumptions data envelopment analysis is a procedure for evaluation of the relative efficiency of units in a production system dea involves construction of composite units as convex combinations of other units inputs and outputs under various conditions related to returns to scale the assumption of convexity is inconsistent with increasing returns to scale and not implied by constant or non increasing returns to scale an alternative dea approach which does not invoke the assumption of a convex production possibility set is developed in this paper it is implemented in two stages stage one is concerned with the spanning of isoquants and stage two with an evaluation of the position of an observed input output combination compared to the isoquants both stages involve linear programming techniques solely

evidence from time series on militarizing the economy the case of iraq robust evidence is provided of causality between defence spending and economic growth in the case of iraq over the period 1950 to 1980 the findings of other studies are questioned studies that use the procedure of differencing the yearly data prior to testing for causality this is because the differencing procedure destroys any long run economic information therefore such studies arrive at the wrong conclusions

multi dimensional procurement auction under uncertain and asymmetric information abstract this paper addresses two important issues in public procurement ex ante uncertainty about the participating agents qualities and costs and their strategic behaviour we present a novel multi dimensional auction that incentivises agents to make a partial inquiry into the procured task and to honestly report quality cost probabilistic estimates based on which the principal can choose the agent that offers the best value for money the mechanism extends second score auction design to settings where the quality is uncertain and it provides incentives to both collect information and deliver desired qualities

the determinants of military expenditures in developing countries abstract this paper first discusses the results of various quantitative studies of the impact of military spending on economic growth in developing countries it concludes that there is little doubt that this impact is generally negative the paper then proceeds to consider the main factors influencing the level of military expenditure itself the analysis is developed from a conceptual matrix covering the national regional and global levels each being divided into political military and economic aspects the quantitative analysis based on cross country regressions for the period 1978 to 1980 indicates that differences among developing countries in the relative size of their military burdens reflect a complex of factors both domestic regional and global and both political military and economic

defence spending economic growth and temporal causality evidence from taiwan and mainland china 1952 1995 this paper uses a cointegration analysis and a vector autoregressive model var to examine the causal relationship between defence spending and economic growth for taiwan and mainland china over the period 1952 1995 it is found that these two variables are not cointegrated for both countries studied the results of the granger causality tests suggest bidirectional granger causality feedback between defence spending and economic growth for taiwan unidirectional granger causality running from economic growth to defence spending for mainland china and unidirectional granger causality running from taiwan s defence spending to mainland china s defence spending for cross country studied these results further indicate that there exists no arms race between two countries from both sides of taiwan strait furthermore impulse responses and variance decompositions are incorporated into the analysis the results from the impulse responses and variance decompositions tell a similar story

external ambition and economic performance realist approaches to international politics raise the possibility that external policies based on expanding military power may undermine the economic bases of that power the links between external strategy and economic performance can be classified as fiscal macroeconomic effects structural microeconomic and structural effects and protectionist effects on foreign economic policy the case of prewar japan suggests that for countries at an intermediate position in the international power hierarchy and in the international division of labor the positive effects of external ambition on economic performance may dominate other cases national socialist germany contemporary developing countries and the postwar superpowers seem to confirm that international position is a principal determinant of these effects

short communication dea based auctions simulations abstract in this paper we use simulations to numerically evaluate the hybrid dea second score auction in a procurement setting the winner of the hybrid auction by design receives payment at the most equal to the second score auction it is therefore superior to the traditional second score scheme from the point of view of a principal interested in acquiring an item at the minimum price without losing in quality for a set of parameters we quantify the size of the improvements and show that the improvement depends intimately on the regularity imposed on the underlying cost function in the least structured case of a variable returns to scale technology the hybrid auction only improved the outcome for a small percentage of cases for other technologies with constant returns to scale the gains are considerably higher and payments are lowered in a large percentage of cases we also show that the number of the participating agents the concavity of the principal value functions and the number of quality dimensions impact the expected payment

dea based auctions we discuss the design of a multi dimensional procurement mechanism that combines data envelopment analysis dea and auction theory the mechanism selects an agent to provide a project characterized by multiple attributes the optimal configuration of the multiple attributes is settled endogenously by trading off the costs to the provider with the benefits to the acquirer this is done within a context of asymmetric information and strategic behavior as well as possibly correlated costs the mechanism makes it individually rational and incentive compatible to participate and reveal costs and the outcome is socially optimal allocatively efficient

the design of auctions and tenders with quality thresholds the symmetric case three designs of auctions with quality thresholds are considered the quality threshold is not known with certainty by the bidders in one scheme quality plans submitted by potential bidders are evaluated first and price bids for only those plans which have been approved are invited the second scheme has price bids first to yield a priority for scrutinising quality a third has simultaneous decisions on price and quality the model yields an equivalence result the use of reserve prices to produce social optimality is then investigated the theory is used to discuss the recent auction for uk television franchises

incentive efficient production frontiers an agency perspective on dea in this paper we examine how empirical production frontiers may contribute to the incentives of production units we consider a series of data envelopment analysis dea frontiers and we show when these may be incentive efficient in the sense that they contain all the information that are relevant for optimal incentive provision the frontiers considered include the so called constant decreasing and varying return to scale models the free disposability and the free replicability models as well as the increasing and decreasing return to scale models based on a relaxed set of assumptions also we illustrate how to design optimal incentive schemes based on such frontiers contents 1 introduction 2 the incentive problem 3 production frontiers and productivity measures 4 incentive efficient production frontiers 5 extensions 6 an example 7 final remarks mathematical appendix references

effects of government spending on private investment this paper investigates the effects of military and non military public expenditures on gross private investment using cointegration and error correction analysis the latter type of public spending is disagreggated into expenditures of infrastructure consumption and other general government expenditures the empirical evidence from four emerging european countries namely greece ireland portugal and spain suggests that in some cases public capital spending stimulates investment while in others it depresses it also the results tentatively indicate that defence spending exerts no influence on private investment thus adding to the ongoing controversy of the economic effects of military spending

external military threat and the response of the member states of the gulf co operation council gcc the study shows that procurements of traditional arms by two countries have the possibility of moving together over time this is demonstrated with reference to iran and the member states of the gulf co operation council gcc for the period 1961 1996 acquiring arms by the member states of the gcc is shown to be only a response to the perception of their leaders to the external threat posed by iran throughout the varying regimes that have ruled teheran in the light of the recent emergence of macroeconomic problems such as unemployment in the economies of the gcc coupled with the ineffectiveness of the financially exhausting build up of arms as a military deterrent policy one important implication of the study is that the priority of the gcc leaders will have to turn to a more effective deterrent policy such as acquiring nuclear technology rather than engaging in a costly and unsuccessful arab military alliance as experienced in the 1970s

estimating cost functions in regulated industries characterized by asymmetric information abstract in this paper a structural model is developed to estimate a cost function that includes both an adverse selection and a moral hazard variable it is shown how traditional cost function estimates may produced biased results if moral hazard is present this gives an alternative reason to feinstein and wolak the econometric implications of incentive compatible regulation in g f rhodes ed advances in econometrics vol 9 159 204 jai press greenwich ct 1991 of why scale economics may be overestimated in regulated industries parameter estimates from our model can be used to design an optimal contract or any other regulatory mechanism we illustrate our approach using data from the norwegian bus transport industry

incorporating post zonal reserve deployment transmission constraints into energy and ancillary service co optimization this paper presents a new approach implemented in miso day ahead and real time energy and ancillary service market clearing processes to address the reserve deliverability issue in this approach miso enhanced the co optimization process to incorporate post zonal reserve deployment transmission constraints reserves are procured within the co optimization to meet both market wide reserve requirements and ensure their deliverability on a zonal basis as a result zonal market clearing prices mcps for reserves can properly reflect the effects of zonal reserve deployment on transmission constraints under consideration

relative efficiency measurement and prospects for yardstick competition in brazilian electricity distribution abstract the paper considers the non parametric methodology of data envelopment analysis dea in the context of efficiency measurement for brazilian electricity distribution in 1997 98 indicating the existence of firms operating substantially below the efficiency frontier the potential and difficulties associated with the implementation of yardstick competition schemes are then discussed stressing in particular the role of relative efficiency scores obtained from the dea approach

economic growth and defense spending granger causality abstract this paper uses granger causality to check the assumed exogeneity of military spending relative to economic growth in previous studies of the relationship between economic growth and military spending the test results performed using two measures of military spending consistently show that military spending is not a strongly exogenous variable implying that previous work in this area is flawed

defence spending and growth in greece 1974 90 some preliminary econometric results during the period 1974 90 greece has allocated an average of 6 4 of gdp to defence yearly the greek defence burden is currently the highest among european union and nato members at the same time the greek economy has exhibited the lowest rates of growth and it is plagued by persistent economic problems this paper using disaggregated military spending data investigates its economic effects during the period 1974 90 preliminary results reported here are inconclusive

models for iterative multiattribute procurement auctions multiattribute auctions extend traditional auction settings to allow negotiation over nonprice attributes such as weight color and terms of delivery in addition to price and promise to improve market efficiency in markets with configurable goods this paper provides an iterative auction design for an important special case of the multiattribute allocation problem with special preferential independent additive structure on the buyer value and seller costs auction additive discrete provides a refined design for a price based auction in which the price feedback decomposes to an additive part with a price for each attribute and an aggregate part that appears as a price discount for each supplier in addition this design also has excellent information revelation properties that are validated through computational experiments the auction terminates with an outcome of a modified vickrey clarke groves mechanism this paper also develops auction nonlinear discrete for the more general nonlinear case a particularly simple design that solves the general multiattribute allocation problem but requires that the auctioneer maintains prices on bundles of attribute levels