technological regimes schumpeterian patterns of innovation and firm level productivity growth the paper investigates the relationships between technological regimes and firm level productivity performance and it explores how such a relationship differs in different schumpeterian patterns of innovation the analysis makes use of a rich dataset containing data on innovation and other economic characteristics of a large representative sample of norwegian firms in manufacturing and service industries for the period 1998 2004 first we decompose tfp growth into technical progress and efficiency changes by means of data envelopment analysis we then estimate an empirical model that relates these two productivity components to the characteristics of technological regimes and a set of other firm specific factors the results indicate that 1 tfp growth has mainly been achieved through technical progress while technical efficiency has on average decreased 2 the characteristics of technological regimes are important determinants of firm level productivity growth but their impacts on technical progress are different from the effects on efficiency change 3 the estimated model works differently in the two schumpeterian regimes technical progress has been more dynamic in schumpeter mark ii industries while efficiency change has been more important in schumpeter mark i markets

efficiency analysis in banking firms an international comparison abstract the intensive process of financial european integration together with the profound transformation and deregulation that has taken place in the spanish banking system justifies the evaluation of its efficiency in comparison with that of other banking systems in this context the aim of this study is to analyze the productivity efficiency and differences in technology of several banking systems using a non parametric approach together with the malmquist index we compare the efficiency productivity and differences in technology of different european and us banking systems for the year 1992

the tale of two research communities the diffusion of research on productive efficiency abstract the field of theoretical and applied efficiency analysis is pursued both by economists and people from operational research and management science each group tends to cite a different paper as the seminal one recent availability of extensive electronically accessible databases of journal articles makes studies of the diffusion of papers through citations possible research strands inspired by the seminal paper within economics are identified and followed by citation analysis during the 20 year period before the operations research paper was published the first decade of the operations research paper is studied in a similar way and emerging differences in diffusion patterns are pointed out main factors influencing citations apart from the quality of the research contribution are reputation of journal reputation of author number of close followers colleagues cadres of proteges ph d students and extent of network invisible college such factors are revealed by the citing papers in spite of increasing cross contacts between economics and operations research the last decades co citation analysis reveals a relative constant tendency to stick to own camp references

regulatory reform and productivity growth in the uk s public utilities the reforms in the regulation of the uk nationalised industries over the last decade are examined and the extent to which they have been successful in achieving one of their declared aims that of increasing the efficiency of the enterprises operations is considered to achieve this the productivity performance of nine of the largest enterprises over the last twenty years was analysed the results show that the rate of productivity growth has been significantly higher during the 1980s compared with the preceeding decade it is concluded that a large part of the observed upturn in productivity is a result of changes in efficiency

the effect of scale on the response to reform by chinese state owned construction units abstract using firm level data on large and medium state owned construction units a production function approach evaluates the effect of scale on the response of chinese state enterprises to reform large state units have greater economies of scale but are less productive and less input price efficient as investment increases in nonproductive fixed assets large unit profits are declining fastest and a comparison of coastal interior and ministry level units contradicts the hypothesis that competition is the primary source of this decline instead falling profits are explained by the increased autonomy which allows these units to be more inefficient

two dimensional efficiency decomposition to measure the demand effect in productivity analysis this paper proposes a two dimensional efficiency decomposition 2ded of profitability for a production system to account for the demand effect observed in productivity analysis the first dimension identifies four components of efficiency capacity design demand generation operations and demand consumption using network data envelopment analysis network dea the second dimension decomposes the efficiency measures and integrates them into a profitability efficiency framework thus each component s profitability change can be analyzed based on technical efficiency change scale efficiency change and allocative efficiency change an empirical study based on data from 2006 to 2008 for the us airline industry finds that the regress of productivity is mainly caused by a demand fluctuation in 2007 2008 rather than technical regression in production capabilities

technical change and total factor productivity growth for swedish manufacturing and service industries this paper presents alternative specifications of the production functions of a large panel of swedish firms for the period 1992 2000 the period can be characterized as a transition when long run productivity growth in the swedish economy improved from being among the weakest to one of the strongest within the oecd in order to present a detailed exploration of this dramatic change the time trend and general index models are applied to estimate total factor productivity tfp growth rate of technical change and returns to scale the models are extended to allow for firm specific as well as time varying technical change the parametric tfp measures are also compared with the non parametric solow residual and several hypotheses are tested to explain the growth patterns in the swedish economy it is found that the improved growth rate initially starting in large exporting manufacturing firms after a deep economic crisis at the beginning of the 1990s spilled over to the rest of the economy both manufacturing and services

impact of r d expenditures rainfall and temperature variations in agricultural productivity empirical evidence from bangladesh abstractthis study aims to investigate dynamic relationships between research and development r d expenditure climate change measured by annual rainfall and temperature variations human capit

firm heterogeneity in sources of total factor productivity growth for japanese manufacturing firms we investigate firm heterogeneity in productivity sources across technology sectors for japanese manufacturers firm heterogeneity in productivity sources conveys more information about firm specif

the impact of subsidies on x efficiency in ldc industry theory and an empirical test the x inefficiency costs of protection and industrial concentration have been topics of considerable interest in the literature on economic development balassa 1975 and bergsman 1974 for example have argued that protection by increasing x inefficiency generates a major welfare cost which is not captured by traditional costs of protection calculations and white 1976 has examined the relationship between inappropriate factor intensities which he associates with xinefficiency and industrial concentration the common theme which emerges from each of these studies is that public policy can have a major impact on economic performance not only by influencing factor proportions but also by influencing the intensity with which a non measurable input x efficiency is employed despite the intuitive appeal of the x efficiency concept there have been very few empirical tests of this hypothesis this partly reflects the imprecise nature of the basic concept but also the lack of adequate micro economic data x efficiency clearly relates to efficiency within firms so that the most appropriate tests would rely on data on firm level efficiency in this paper we propose a direct test of the x efficiency hypothesis using firm level data we build on previous work by corden 1970 1974 and martin 1978 who showed how to model x efficiency effects using the concept of managerial leisure we extend these simple models of managerial behavior emphasizing the role of the external managerial labor market the model is then used to explore the relationship between changes in public policy managerial effort and x inefficiency certain predictions of the model are tested using cross section data from a survey of firms in two subsidized industries in ghana efficiency indices are computed on the basis of a translog frontier production function variations in relative efficiency are then correlated with several explanatory variables including the presence or absence of subsidy payments to the firm subsidized firms in both industries are found to exhibit higher relative levels of x inefficiency

economic integration efficiency change and technological progress this article examines the forces driving output growth in 21 manufacturing industries at the 3 digit level in hong kong during the period 1976 to 1997 a varying frontier coefficients model is adopted that relaxes the assumption of homogeneous application of the best practice production technology the varying coefficients frontier approach allows the decomposition of output growth into factor contributions technological progress and efficiency change following the decomposition framework it facilitates the investigation of the relative roles of the three components of output growth and of the manner in which technical efficiency changed over time the article finds evidence of moderate annual tfp growth of 2 7 in hong kong manufacturing attributed mainly to technological progress this implies technical efficiency gained through learning by doing has been insignificant reflecting the loss of skilled labour associated with manufacturing relocation to mainland china

growth of factor productivity in the turkish manufacturing industry at provincial level karadag m onder a o and deliktas e 2005 growth of factor productivity in the turkish manufacturing industry at provincial level regional studies 39 213 223 this paper estimates the total factor productivity tfp change of the private and public sectors in the turkish manufacturing industry in the selected provinces for 1990 98 it uses data envelopment analysis to compute malmquist productivity indices decomposed into two components namely efficiency change and technical change the results show that many of the provinces show improvement in tfp on average for the public sector while in the private sector only half the provinces show growth in tfp overall evidence of catching up can be observed only in the private sector the results also reveal that technical progress plays the main role in productivity growth

a decomposition of total factor productivity growth the case of chinese agricultural growth before and after reforms our objective in this paper is to explain a method to decompose the sources of total factor productivity tfp growth into technological progress and changes in technical efficiency within the framework of the varying coefficients frontier production function an empirical application is demonstrated using the chinese provincial level agricultural data covering the period 1970 87 the results indicate that tfp growth in the prereform period was negative in twenty out of twenty eight provinces and that it was positive in almost all provinces during the reform periods while negative in sixteen out of twenty eight provinces in the postreform periods of 1984 87

trade liberalization and technical efficiency in the indonesian chemicals industry this article examines the impact of trade reform on technical efficiency on the indonesian chemicals industry using firm level panel data the effects of trade reform on technical efficiency are an

price protection and productivity growth this study provides empirical evidence on the relationship between price protection and productivity growth from theoretical considerations it is concluded that the impact of price protection on productivity growth is ambiguous although protectionism may in some instances stimulate investment and adoption of new technologies efficiency may decrease particularly when farm prices and income are high empirical evidence from the new zealand beef sheep industry indicates that high protection during the 1975 85 period produced negative productivity growth following market liberalization in 1985 productivity growth increased substantially

comparing malmquist and hicks moorsteen productivity indices exploring the impact of unbalanced vs balanced panel data abstract we explore the effect of balancing unbalanced panel data when estimating primal productivity indices using non parametric frontier estimators first we list a series of pseudo solutions aimed at making an unbalanced panel balanced then we discuss some intermediate solutions e g balancing 2 years by 2 years furthermore we link this problem with a variety of literatures on infeasibilities statistical inference of non parametric frontier estimators and the index theory literature focusing on the dynamics of entry and exit in industries we then empirically illustrate these issues comparing both malmquist and hicks moorsteen productivity indices on two data sets in particular we test for the differences in distribution when comparing balanced and unbalanced results for a given index and when comparing malmquist and hicks moorsteen productivity indices for a given type of data set the latter tests are crucial in answering the question to which extent the malmquist index can approximate the hicks moorsteen index that has a total factor productivity tfp interpretation finally we draw up a list of remaining issues that could benefit from further exploration

structural adjustment policies and productive efficiency of socialist enterprises abstract the paper uses panel data from a five percent stratified random sample of yugoslav industrial enterprises to test several hypotheses about the determinants of productive efficiency the estimating procedure selects the production function best supported by the data and allows for industry specific production function parameters as well as from firm specific fixed or random effects the instrumental variable estimates suggest that productive efficiency is unaffected by the four structural policy variables whose effect we examine the extent of export orientation joint venture status divisionalization of the firm and the firm s market share

the interplay between micro frontier and sectoral short run production functions we apply leif johansen s dynamic production function framework to the development of the finnish brewery industry over a 30 year time span 1955 to 1984 based on micro data plants the relationship between the micro frontier and short run industry production functions is analysed particularly with respect to the evidence of embodied technical progress the empirical analysis reveals striking differences in the time pattern of productivity growth of the two functions illustrates the importance of capacity expansion for technical progress at the frontier and clarifies the distinction between embodied and disembodied technical progress

malmquist productivity index decompositions a unifying framework in two widely cited but unpublished working papers simar and wilson 1998 and zofio and lovell 1998 proposed an alternative decomposition of the malmquist productivity index which retained what seemed to be the strongholds of previous proposals with regard to the contribution of technological and efficiency change to productivity change namely a technical change term with regard to the best practice variable returns to scale vrs technology which is to be found in ray and desli 1997 and a scale efficiency change term that illustrates a firm s situation with regard to optimal scale benchmark technology fare et al 1994 attaining this objective required the introduction of an additional term in the malmquist productivity index decomposition which would reflect the scale bias of technical change it is our objective to provide economic rationale for this term within a theory of production context the existing decompositions and recent articles that further elaborate on this issue the ide

organic farming in scandinavia productivity and market exit abstract this paper attempts to quantitatively measure the change in the productivity of danish organic farming in recent years based on a translog production frontier framework the technical and scale efficiency at farm level is analysed by following a time trends as well as a general index model specification further this study tries to analyse the significance of subsidies for promoting long term growth in organic production by estimating a bootstrapped bivariate probit model with respect to factors influencing the probability of organic market exit the results revealed significant differences in the organic farms technical efficiencies no significant total factor productivity growth and even a slightly negative rate of technical change in the period investigated evidence has been found for a positive relationship between subsidy payments and an increase in farm efficiency technology improvements and a decreasing probability of organic market exit which was also confirmed for off farm income

the transmission of world maize price to south african maize market a threshold cointegration approach this article seeks to provide an explanation for the relationship between domestic maize price in south africa and world maize prices in order to evaluate comovement and transmission of world prices to domestic prices in sub sahara african countries this is done by comparing nested and nonnested models that capture different forms of nonlinearity in the price spread adopting a bayesian approach that allows for comparison of models using bayes factor we found that the relationship between south african price and world price for maize indicates the presence of nonlinearity in price transmission with three regimes that is triggered by the price spread in previous period

the role of environmental factors in growth accounting this paper explores a relatively new methodology the directional distance function method to analyse productivity growth the method allows us to explicitly evaluate the role that undesirable outputs of the economy such as carbon dioxide and other greenhouse gases have on the frontier production process which we specify as a piecewise linear and convex boundary function we decompose productivity growth into efficiency change catching up and technology change innovation we test the statistical significance of the estimates using recently developed bootstrap methods we also explore implications for growth of total factor productivity in the oecd and asian economies copyright 2004 john wiley sons ltd

productivity change technical progress and relative efficiency change in the public accounting industry we present evidence on components of productivity change in the public accounting industry toward the end of the 20th century using revenue and human resource data from 64 of the 100 largest public accounting firms in the united states for the 1995 1999 period we analyze productivity change technical progress and relative efficiency change over time the average public accounting firm experienced a productivity growth of 9 5 between 1995 and 1999 we find support for the hypothesis that technical progress rather than an improvement in relative efficiency was the reason for this productivity growth firms that were early movers into management advisory services mas and those that emphasized growth in mas over growth in the traditional audit and tax services enjoyed significantly higher productivity growth than their peers these firms also contributed significantly more to the industry s technical progress

the paradigm of agricultural efficiency and its implication on food security in africa what does meta analysis reveal summary the study investigates whether african agricultural efficiency levels have been improving or not and what drives them over the years based on 442 frontier studies using meta regression analysis the results show that the mean efficiency estimates from studies decrease significantly as year of survey in the primary study increases also studies published in journals with parametric specification and with panel data produced significantly higher efficiency estimates while those with a focus on grain crops reported significantly lower efficiency estimates other results show that education followed by experience extension and credit are the major drivers of agricultural efficiency levels in africa

small enterprise and firm level technical efficiency in the indonesian garment industry this paper examines technical efficieny in the indonesian garment industry based on the country s 1986 census of small industry drawing on a sample of 2250 firms our analysis suggests that inter firm variations in efficiency are very considerable the paper then investigates the correlates of these variations finding in particular a positive correlation between technical efficiency and each of export orientation financial integration and female participation in the workforce it is also found that there is a significant level of labour capital substitution in the industry

best practice technology in an adverse environment the case of indian sugar 1981 1986 abstract empirical production frontiers are sometimes observed to shift downward over certain periods of time associating higher quantities of input with lower quantities of output this phenomenon is quite different than an increase in observed inefficiency relative to best practice we find such a shift for the indian vacuum pan sugar industry and identify its cause as environmental adversity reducing the performance of best practice technology specifically agro climatic difficulties exacerbated by regulation induced rigidities provide the adverse environment the case serves as a context for a re examination of the concepts of best practice technology and technological regress

malmquist indices of productivity growth during the deregulation of norwegian banking 1980 89 productivity growth during the deregulation of the norwegian banking industry is studied within the framework of data envelopment analysis which explicitly allows for multiple outputs introducing malmquist indices for productivity growth total growth can be decomposed into frontier growth and change in each bank s distance to the frontier both the total growth index and its components can be consistently chained over time we find productivity regress at the average bank prior to the deregulation but rapid growth when deregulation took place deregulation also led to less dispersion of productivity levels within the industry

privatization technical efficiency and welfare consequences the case of the cote d ivoire electricity company cie abstract in 1990 cote d ivoire privatized the management of its electric power company lease contracting in this paper we are interested in identifying the economic effect of this institutional change by estimating a stochastic production frontier we have found that productive efficiency improved after privatization thanks to organizational innovations total factor productivity gains have been closely associated with a cost reduction strategy the way these gains have been distributed in a monopoly context suggests that consumers have been the main beneficiaries through a significant decrease of the relative price of electricity

the luenberger indicator and productivity growth a note on the european savings banks sector we employ the luenberger productivity indicator to estimate productivity growth and its decomposition into technical change and efficiency change components for savings banks sectors in 10 eu countries between 1996 and 2003 the luenberger indicator requires less restrictive assumptions than standard nonparametric productivity indexes and it allows the assumption of profit maximization to be made for sample firms we estimate average productivity growth in the savings banks sector to be 2 78 per annum and driven almost entirely by technical change whilst the general results confirm earlier findings this study is one of the earliest to identify cross border differences in productivity growth in the savings banks sector

dynamic environmental performance analysis a malmquist index approach abstract this article presents a general framework for dynamic environmental performance analysis by generalizing the approach proposed by kuosmanen and kortelainen kuosmanen t kortelainen m 2005 measuring eco efficiency of production with data envelopment analysis journal of industrial ecology 9 4 59 72 from a static to a dynamic setting for this purpose we construct an environmental performance index epi by applying frontier efficiency techniques and a malmquist index approach compared to other dynamic environmental productivity and efficiency analysis approaches based on these methods our approach builds on the standard definition of eco efficiency as it is presented in the ecological economics literature recognizing the importance to analyze the sources of environmental performance changes we show how changes in overall environmental performance can be decomposed into changes in relative eco efficiency and shifts in environmental technology respectively we apply the presented technique at the macro level to dynamic environmental performance analysis of 20 member states of the european union in 1990 2003 according to the results environmental technical change mostly explains the improvement in overall environmental performance while relative eco efficiency change has been minor for most countries during the sample period

is private farming more efficient than socialized agriculture this paper examines the technical efficiency of state and private farms in poland for the period 1960 74 we find that the average technical efficiency of the two types of farms does not differ although the dispersion of efficiency levels is greater among state farms than among private ones we do find clear evidence of allocative inefficiency with state farms oversupplied with fertilizer and machinery

a cost malmquist productivity index this paper develops a productivity index applicable when producers are cost minimisers and input prices are known the index is inspired by the malmquist index as extended to productivity measurement the index developed here is defined in terms of input cost rather than input quantity distance functions hence productivity change is decomposed into overall efficiency and cost technical change furthermore overall efficiency change is decomposed into technical and allocative efficiency change and cost technical change into a part capturing shifts of input quantities and shifts of relative input prices these decompositions provide a clearer picture of the root sources of productivity change they are illustrated here in a sample of hospitals results are computed using non parametric mathematical programming 2003 elsevier b v all rights reserved

productivity change model in the airline industry a parametric approach abstract in this paper we construct a general model of the airline competition that incorporates the main variables discussed in different models of the quality of airlines competition the model is applied to data on the domestic airlines in the republic of indonesia which consists of six airlines although we find little evidence in support of endogenous variables it seems that the estimated variables of all airlines are consistent with the notion that the market shares of the airlines are positively related to the main variables the parameter results represent weights which describe the number of appearances in the facet for each particular airline then we attempt to introduce a goal programming model with constraints that are developed for estimating the parametric frontiers using translog form and the coefficient of its objective function using the above parameter results of an airline competition model the objective of this paper is to propose a methodology that decomposes total factor productivity change into technological progress and change in technical efficiency the analysis of methodology provides a useful illustration of the productivity change in the airline industry

the productivity debate of east asia revisited a stochastic frontier approach this paper applies a stochastic frontier production model to the data from penn world table s 49 countries over the period 1965 to 1990 to decompose total factor productivity growth into technical change and technical efficiency change empirical results show east asian countries led the world in productivity growth mainly because their technical efficiency gain was so much faster than that of other countries east asian countries also registered rapid technical change which was comparable to that of the g6 countries after the late 1980s the results provide evidence that negate the hypothesis that east asian growth was mostly input driven and unsustainable

total factor productivity growth technological progress and technical efficiency change dimensions of productivity change in yugoslavia 1965 1978 this article total factor productivity growth technological progress and technical efficiency change dimensions of productivity change in yugoslavia 1965 78 was reprinted with permission from the december 1982 issue of the economic journal this article proposes a methodology that decomposes total factor productivity change into two distinct elements technological progress and changes in technical efficiency technological progress is defined as the change in the best practice production frontier all other productivity change is attributed to technical efficiency change the article provides a theoretical framework for decomposing total factor productivity growth as well as a specification and estimation of the deterministic frontier production function it employs a programming technique to estimate a flexible functional form of the production frontier the paper then applies this technique to empirical data from yugoslavia of the period from 1965 to 1978 it concludes that for yugoslavia improvements to technical efficiency comprise the dominant contribution to total factor productivity change this agrees with accumulating evidence that in many developing economies productivity gain due to technological mastery of imported technology is substantial

on two definitions of productivity abstract caves et al in 1982 introduced a productivity measure that does not proceed from a continuous timer presentation they named these indexes after sten malmquist who in 1953 used ratios of distance functions to formulate quantity indexes in the consumer context in a later paper diewert proposed an alternative definition of productivity also based on distance functions which he attributed to hicks and moorsteen in this letter we provide necessary and sufficient conditions for the malmquist productivity index to equal the hicks moorsteen index

how efficient are african electricity companies evidence from the southern african countries this paper is a first attempt at documenting efficiency levels in africa s electricity firms their evolution and the sources of this evolution the analysis is based on a sample of 12 operators providing services in the 12 country members of the southern africa power pool we focus on the changes in total factor productivity tfp of the largest operators in each country between 1998 and 2005 we then rely on a data envelopment analysis dea decomposition to identify the sources of the changes in tfp the results suggest fairly comparable levels of efficiency in the region and performance levels and evolution quite independent of the degree of vertical integration the presence of a private actor or the main sources of energy supply the analysis suggest that although the companies have not made significant improvements during the period of analysis in using their capital and human assets they have done much better in adopting better technologies and better commercial practices no clear correlation could be associated with the adoption of reforms during the last decade and data limitations impede a more refined assessment of the impact of reforms on efficiency at this stage

productivity growth of east asia economies manufacturing a decomposition analysis abstract applying a stochastic production frontier to sector level data within manufacturing this paper examines total factor productivity tfp growth for seven east asian economies during 1963 98 using both single country and cross country regressions the analysis focuses on the trend in technological progress tp and technical efficiency change tec and the role of productivity change in economic growth the empirical results reveal that although input factor accumulation is still the main source for east asian economies growth tfp growth is accounting for an increasing and important proportion of output growth among which the improved tec plays a crucial role in productivity growth

changing productive efficiency in telecommunications in the united states abstract the issue explored is whether incentive regulation in the telecommunications industry in the united states has resulted in an increase in productive efficiency after providing an overview of the nature of incentive regulation the methodology for measuring the effects of incentive regulation on productive efficiency is reviewed this methodology is data envelopment analysis dea and allows for the measurement of both technical efficiency and allocative efficiency of individual local exchange carriers the results of empirically implementing the dea approach indicate that in the aggregate there is little change in technical efficiency in fact average technical efficiency in 1989 was the same as in 1998 next while outputs continued to grow at about their historical rate across lecs the sizeable increase in the two types of capital increased inputs well above their historical average rates for some lecs leading to short run allocative inefficiency on average however allocative efficiency shows no identifiable trend between 1988 and 1998 finally in the aggregate total economic efficiency what incentive regulation in the telecommunications industry in the united states was designed to promote does not have a demonstrable trend between 1988 and 1998

sources of growth a reconsideration and general equilibrium application to indonesia abstract a computable general equilibrium cge model of indonesia is developed in which total factor productivity growth in manufacturing is endogenously determined productivity growth is conceptualized as human and social capital accumulation mediated by learning and institutional development stimulated by the trade regime these factors are modeled as externalities determined by export growth and capital equipment imports the model is used to analyze the gains deriving from the externalities and subsidies that amplify their effects leading indonesia to acquire korea like institutions sooner the growth and fiscal implications of such counterfactual simulations are analyzed in a realistic general equilibrium framework with a fully articulated public sector

biased technical change and the malmquist productivity index the malmquist productivity index has many attractive features one is that it can be epxressed as the product of a technical efficiency change index and a technical change index in this paper we express the technical change index as the product of a magnitude index and a bias index we then express the bias index as the product of an output bias index and an input bias index and we state conditions under which each bias index makes no contribution to productivity change

malmquist type indices in the presence of negative data an application to bank branches in this paper we develop an index and an indicator of productivity change that can be used with negative data for that purpose the range directional model rdm a particular case of the directional distance function is used for computing efficiency in the presence of negative data we use rdm efficiency measures to arrive at a malmquist type index which can reflect productivity change and we use rdm inefficiency measures to arrive at a luenberger productivity indicator and relate the two the productivity index and indicator are developed relative to a fixed meta technology and so they are referred to as a meta malmquist index and meta luenberger indicator we also address the fact that vrs technologies are used for computing the productivity index and indicator a requirement under negative data which raises issues relating to the interpretability of the index we illustrate how the meta malmquist index can be used not only for comparing the performance of a unit in two time periods but also for comparing the performance of two different units at the same or different time periods the proposed approach is then applied to a sample of bank branches where negative data were involved the paper shows how the approach yields information from a variety of perspectives on performance which management can use

the adoption of incentive regulation and its effect on technical efficiency in telecommunications in the united states abstract incentive regulation has become an important regulatory tool in the telecommunications industry in the united states the issue explored here is whether incentive regulation has resulted in an increase in efficiency after providing an overview of the nature of incentive regulation a methodology for measuring technical efficiency and its change is introduced this is a multiple output multiple input distance function approach to measuring technical efficiency the results of implementing this approach for 19 local exchange carriers for the 1988 1999 period indicate that in the production of local service intrastate toll access service and interstate access to local loops there was no change in technical efficiency between the 1988 1990 period and the 1991 1999 period something that incentive regulation was specifically designed to promote

a gravity model analysis of meat trade policies abstract the conventional gravity model is revised for a single commodity and applied to meat markets to determine factors affecting trade flows of meat this study demonstrates that the gravity model for a single agricultural commodity can be parameterized more effectively by using time series and cross section data rather than cross section data alone this study reveals that trade policies and subsidies used by exporting and importing countries livestock production capacity in countries and distances play an important role in determining trade flows of meat long term agreements achieve the highest performance toward enhancing international meat trade import quotas and the hoof and mouth disease on beef greatly impair meat trade