market performance in an open developing economy technical and allocative efficiencies of korean industries this paper first examines determinants of technical efficiency in terms of competition and government regulation including protection in korean industries relying heavily upon the concepts of x efficiency and rentseeking activities allocative efficiency measured as profitability is then considered with technical efficiency as a determinant the outcome of the regression shows that both the sheltering of industries from international competition and the financial market distortions strongly affect technical efficiency and that technical efficiency as well as effective protection rate are important determinants of profitability

the gains from trade for a monetary economy once again the authors examine the effects of free trade on a small open economy within a dynamic generalized cash in advance model they provide a complete characterization for the possibility of harmful trade and suggest alternative economic policies that can convert the loss associated with free trade into a gain they authors also find contrary to standard results that there exists an optimal tariff for a small open economy and they use calibration methods to assess its value

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

measuring economic efficiency with incomplete price information with an application to european commercial banks measuring economic efficiency requires complete price information while resorting to technical efficiency exclusively does not allow one to utilise any price information in most studies at least some information on the prices is available from theory or practical knowledge of the industry under evaluation in this paper we extend the theory of efficiency measurement to accommodate incomplete price information by deriving upper and lower bounds for farrell s overall economic efficiency the bounds typically give a better approximation for economic efficiency than technical efficiency measures that use no price data whatsoever from an operational point of view we derive new data envelopment analysis dea models for computing these bounds using standard linear programming the practical application of these estimators is illustrated with an empirical application to large european union commercial banks

the effects of import quotas on national welfare does money matter recent evidence shows that there is an increasing use of non tariff barriers to trade ntbs and especially of quantitative restrictions such as import quotas in the world economy to protect import competing industries see table i 1 international trade theory however has traditionally focused on the welfare effects of tariffs as well as on the equivalence between tariffs and quotas with little attention paid to the welfare implications of quotas the latter have basically been restricted within the traditional heckscher ohlin trade model where for the case of a small open economy import quotas always reduce welfare a few recent studies have attempted to fill in this gap in the literature for instance young 19 compares optimal tariffs and quotas for a large country in a stochastic environment neary 14 on the other hand investigates the welfare implications of tariffs quotas and voluntary export restraints under different assumptions on capital mobility finally chao hwang and yu 3 4 examine the welfare effects of import quotas under variable returns to scale although the existing literature has generated important policy implications most of the analysis has been conducted within a barter exchange framework it is well known however that the introduction of money can alter results obtained within a non monetary environment 2 accordingly this paper attempts to re examine the welfare effects of import quotas for a small monetary economy we develop a two sector trade model in which money enters the economy

welfare and market access effects of piecemeal tariff reform abstract we study the link between import volume and welfare due to liberalization we confine our attention to the small country case and to unilateral tariff reductions our results indicate that increased import volume associated with tariff reductions is neither necessary nor sufficient for welfare improvement to occur we show that in general both import value and welfare cannot fall moreover if the excess demand for exported goods does not respond to changes in the prices of imported goods the value of imports and welfare must move in opposite directions

trade and tax reforms in a cash in advance economy we examine the effects of both tariff only and coordinated trade tax reforms on market access government revenue and welfare for a small monetary economy under the assumption that a certain fraction of purchases of each good must be financed with cash held in advance we show that if the cash requirement ratio in the exportable sector is greater than that in the importable then contrary to previous results i a uniform radial reduction of tariffs has ambiguous effects on both welfare and market access ii tariff and consumption tax reforms that leave consumer prices unchanged may be more efficient in improving market access and welfare than a reform that involves only tariffs and iii export and production tax reforms that keep producer prices unchanged may be welfare deteriorating

effects of inflation on the pattern of international trade this paper integrates a transactions based model of money with a real trade model and examines how steady state inflation affects the direction and size of international trade the effects of inflation work through changes in supplies of labour and capital which are chosen jointly with production and consumption by utility maximizing households if production exhibits constant returns to scale in domestically mobile factors then it is unlikely that the economy will produce both of the two traded goods for certain rates of inflation small changes can have dramatic effects on the direction of trade for other rates of inflation the volume of trade is affected when money is held for transactions purposes and factor supplies are endogenous changes in inflation can cause changes in the pattern of trade that do not reflect real underlying changes in comparative advantage

optimal fiscal and monetary policy in an economy without capital abstract this paper is concerned with the structure and time consistency of optimal fiscal and monetary policy in an economy without capital in a dynamic context optimal taxation means distributing tax distortions over time in a welfare maximizing way for a barter economy our main finding is that with debt commitments of sufficiently rich maturity structure an optimal policy if one exists is time consistent in a monetary economy the idea of optimal taxation must be broadened to include an inflation tax and we find that time consistency does not carry over an optimal inflation tax requires commitment by rules in a sense that has no counterpart in the dynamic theory of ordinary excise taxes the reason time consistency fails in a monetary economy is that nominal assets should from a welfare maximizing point of view always be taxed away via an immediate inflation in a kind of capital levy this emerges as a new possibility when money is introduced into an economy without capital

measuring technical efficiency in the stochastic varying coefficient frontier model due to the assumption that the best practice methods refer to each input separately instead of the whole set of inputs used by a firm the benchmark technology as defined in the stochastic varying coefficient frontier model may be infeasible and theoretically improper whenever the maximum response coefficients are not coming from the same production unit to overcome this problem we propose alternative measures of output oriented and single factor technical efficiencies inspired from the maximum likelihood formulation of the nonneutral frontier model the empirical results indicate that there are significant differences between the two in terms of the estimated efficiency scores but not significant differences we detected in terms of the efficiency ranking

technical and allocative efficiency of irrigation water use in the guanzhong plain china due to increasing water scarcity accelerating industrialization and urbanization efficiency of irrigation water use in northern china needs urgent improvement based on a sample of 347 wheat growers in the guanzhong plain this paper simultaneously estimates a production function and its corresponding first order conditions for cost minimization to analyze efficiency of irrigation water use the main findings are that average technical allocative and overall economic efficiency are 0 35 0 86 and 0 80 respectively in a second stage analysis we find that farmers perception of water scarcity water price and irrigation infrastructure increase irrigation water allocative efficiency while land fragmentation decreases it we also show that farmers income loss due to higher water prices can be offset by increasing irrigation water use efficiency

efficiency and farm size in egypt a unit output price profit function approach the main objective of this study is to analyse size and efficiency in egyptian agriculture using an econometric approach free of the problem of simultaneous equation bias associated with the production function technique the identification of factors which affect farm level productivity in the study area are also considered the results reveal that the efficiency of management in both large and small farms is the same and that large farms appear not to be more efficient than small farms the study also indicates that increasing the ulitilization of cultivated land and machinery service and raising the output price are important if production is to increase

win win indirect tax reform abstract the literature on tariffs and that on commodity taxes have established sufficient conditions under which tariff or commodity tax reform improves welfare since less developed countries need to raise certain revenue from indirect taxation we consider a policy reform within the complete indirect tax structure i e an increase in consumption taxes combined with a decrease in tariffs that improves welfare and raises government revenue we demonstrate that when uniform reductions in trade taxes accompany offsetting increases in consumption taxes so that consumer prices remain constant welfare improves and government revenue increases if the initial position provides a net subsidy to producers

measuring productivity growth under factor non substitution an application to us steam electric power generation utilities a theoretical framework is developed for decomposing partial factor productivity and measuring technical inefficiency when the underlying technology is characterized by factor non substitution with farrell s 1957 radial index of technical inefficiency being inappropriate in this case russell non radial indices are adapted to measure technical inefficiency in a leontief type model a system of factor demand equations with a regime specific technical inefficiency term is proposed and estimated allowing for dependence across inputs using a copula approach then the paper presents a complete decomposition of partial factor productivity changes using a dataset of us steam power electric generation utilities

money and interest in a cash in advance economy the authors analyze an aggregative general equilibrium model in which the use of money is motivated by a cash in advance constraint applied to purchases of a subset of consumption goods the system is subject to both real and monetary shocks which are economy wide and observed by all they develop methods for verifying the existence of characterizing and explicitly calculating equilibria copyright 1987 by the econometric society

cost functions under production uncertainty we characterize the cost functions which would be consistent with expected utility maximization when production is uncertain it is not generally possible assuming risk aversion to use only expected output as the constraint in a cost minimization problem in some leading cases cost functions consistent with expected utility maximization are particularly useful because they are devoid of risk preferences

from efficiency measurement to efficiency improvement the choice of a relevant benchmark abstract this article deals with efficiency improvement and how to identify appropriate benchmarks for inefficient firms to imitate we argue that the most relevant benchmark is the most similar efficient firm having interpreted similarity in terms of input endowments the problem reduces to find the closest reference firm on the efficient subset of the isoquant to such an end we introduce the concept of input specific contractions this concept allows to find the shortest path to the efficient subset this information can be used to advise inefficient firms about which efficient firm to visit in order to detect its mistakes and to learn better managerial practices

the measurement of productive efficiency a reconsideration the purpose of this paper is to generalize the farrell indexes of productive efficiency to nonhomothetic production technologies and at the same time maintain the cost interpretation of the farrell measures since the generalized indexes rely heavily on recent developments in the estimation of frontier cost and production functions several frontier models are reviewed in addition to generalized indexes of technical allocative and overall productive efficiency a variety of single factor efficiency measures are discussed the applicability of the proposed efficiency measures is illustrated with a numerical example of electric power generation

agricultural credit programs and production efficiency an analysis of traditional farming in southeastern minas gerais brazil over the past two decades the effectiveness of subsidized credit programs in improving the productivity of traditional farmers in developing countries has been extensively debated this study analyzes the effects of one such program prodemata on the technical and allocative efficiency of traditional farmers in minas gerais brazil the empirical results suggest that prodemata has had no effect on technical efficiency and a slightly negative effect on allocative efficiency

macroeconomic in stability under real interest rate targeting we show that in a one sector monetary endogenous growth model under real interest rate targeting the local stability properties of the economy s balanced growth path depend crucially on the exact formulation of the cash in advance constraint and the degree of productive externalities in particular when a positive fraction including 100 of gross investment is subject to the liquidity constraint the model exhibits indeterminacy and sunspots if and only if the equilibrium wage hours locus is positively sloped and steeper than the labor supply curve on the other hand when real money balances are required only for the household s consumption purchases the economy always displays saddle path stability and equilibrium uniqueness regardless of the strength of productive externalities

data revisions and time series models of gdp and its components this paper examines how time series models of gross domestic product and its components in the uk change as a result of both new observations becoming available and the provisional data series being revised quarterly predictions from the time series models are compared with the series of first estimates of each quarterly change the series available one year after the forecasts are made and the most recent data available the time series models are found to be satisfactory in a number of cases and are better predictors of the final values of total final expenditure than the first estimates series surprisingly the first estimates series are closer to the most recent data available than the estimates obtained one year after the data period ended

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

a dynamic specific factors model with money when the capital stock is endogenously chosen by optimizing households the predictions of the static specific factors model are modified an increase in tariffs unambiguously increases real wages whereas an expansion of the labor force does not reduce wages capital and land are not only factors of production but also assets and their shares in the household s portfolio are determined by features of the supply side time preference and inflation an increase in inflation reduces the capital stock but its impact on the price of land is ambiguous because of opposite movements in the inflation tax and in land rents

estimating the potential for electricity savings in households abstract improving efficiency in the use of energy is an important goal for many nations since end use energy efficiency can help to reduce co 2 emissions furthermore since the residential sector in industrialised countries requires around one third of the end use electricity it is important for policy makers to estimate the scope for electricity saving in households to reduce electricity consumption by using appropriate steering mechanisms we estimate the level of technical efficiency in the use of electricity using data from a swiss household survey we find an average inefficiency in electricity use by swiss households of around 20 to 25 bottom up economic engineering models estimate the potential in switzerland to be around 15 in this paper we use a sub vector input distance frontier function based on economic foundations our estimates lie at the upper end of the electricity saving potential estimated by the afore mentioned economic engineering approach

tariffs quotas and welfare in a monetary economy abstract the effects of tariffs and quotas on welfare in a monetary economy are considered it is shown that while both policies improve the balance of payments they have different lifetime welfare implications even when they are equivalent in the long run the speed of adjustment is shown to be more rapid under a tariff than under a quota therefore adjustment costs associated with changes in money holdings are lower under a tariff while those associated with changes in consumption are higher simulation results are used to examined the implications of various structural parameters for lifetime utility under the two policies