smallholders land access in sub saharan africa a new landscape while scholars long recognized the importance of land markets as a key driver of rural non farm development and transformation in rural areas evidence on the extent of their operation and the nature of participants remains limited we use household data from 6 countries to show that there is great potential for such markets to increase productivity and equalize factor ratios while rental markets transfer land to land poor and labor rich producers their operation and thus impact may be constrained by policy restrictions their functioning may also be constrained by ill defined or insecure rights that may arise from failure to fully compensate existing rights in cases of expropriation a failure to implement more broadly land policies or to do so in a gender sensitive manner methodological and substantive conclusions are derived

too big to be efficient the impact of implicit subsidies on estimates of scale economies for banks we examine whether too big to fail tbtf factors affect estimates of scale economies for large banks from a standard model of bank production that does not control for any tbtf factors we find evidence of scale economies for our sample of large banks we then control for tbtf factors by using a measure of the implicit subsidy that emerges from a reduction in tbtf banks funding costs due to investor expectations of government support we do this in two ways first we estimate scale economies from an augmented model of bank production that employs a proxy for the counterfactual price of debt that banks would face in the absence of any tbtf funding cost advantage second we estimate scale economies from a model of bank production that is estimated only for a sample of banks considered unlikely to be tbtf after controlling for tbtf factors using either method we no longer find evidence of scale economies for our sample of large banks these results suggest that estimated scale economies for large banks are affected by tbtf factors

the social costs and benefits of too big to fail banks a bounding exercise while the policy of too big to fail has received wide attention in the literature there is little agreement regarding economies of scale for financial firms we take the stand that systemic risk increases when the larger players in the financial sector have a larger share of output calculations indicate that the cost to the macro economy due to increased systemic risk is always much larger than the potential benefit due to scale economies when distributional and intergenerational issues are considered the potential benefits to economies of scale are unlikely to ever exceed the potential costs due to increased risk of a banking crisis

turkish bank efficiency bayesian estimation with undesirable outputs this paper analyzes the productivity and efficiency of turkish banks from 2002 to 2010 we obtained estimates of efficiency productivity growth and efficiency growth using a bayesian stochastic frontier approach and focused on accounting for non performing loans npls for use in our model specifically we introduce npls as a bad output in an input distance function and estimate a system of non linear equations subject to endogeneity we confirm that the productivity growth of turkish banks was positive over the period of this study which was mainly due to the improvement in technology while efficiency growth continued to be negative over the same period methodologically we also prove that not accounting for npls in estimating the frontier model might seriously distort the efficiency and productivity results the study also provides measures of shadow prices for npl and discusses the results in terms of several interesting trends in turkish banking finally the paper provides efficiency and productivity comparisons between domestic and foreign banks

productivity and efficiency at large and community banks in the us a bayesian true random effects stochastic distance frontier analysis this paper compares the productivity and efficiency of large banks and community banks in the united states over the period 1997 2006 this comparison is performed by estimating a true random effects stochastic distance frontier model a model that is capable of disentangling unobserved heterogeneity from inefficiency within a bayesian framework we find that failure to consider unobserved heterogeneity results in a misleading ranking of banks and mismeasured technical efficiency productivity growth and returns to scale our results show that compared with community banks large banks have experienced much higher productivity growth and higher levels of returns to scale our estimates of total factor productivity growth show a clear downward trend for both large and community banks and our decomposition of the output distance function based divisia productivity index indicates that technical change is the driving force behind this trend

tax smoothing and the cross country pattern of privatization summary privatization generally enhances firm level efficiency the impact of privatization on fiscal efficiency has however been overlooked using the tax smoothing ideas articulated by r barro 1979 on the determination of the public debt journal of political economy 87 940 971 and by h bohn 1990 tax smoothing with financial instruments american economic review 80 1217 1230 we argue that privatization may have an important impact on the welfare losses associated with tax collection this impact can either enhance or erode the efficiency of taxation we hypothesize that countries that benefit in terms of fiscal efficiency will privatize aggressively while countries that enjoy fiscal benefits as a result of state ownership will show little interest in privatization statistical tests are conducted that provide considerable support for the hypothesis

a fresh look at the productivity and efficiency changes of uk airlines this article uses the bootstrapped malmquist index methodology to measure and test the extent of efficiency and productivity changes in the uk airline sector the aim of the bootstrap method is to overcome the statistical limitations of the data envelopment analysis dea method generally used to measure the distance functions of the malmquist index in applying the method we use input output data on a sample of major uk airlines for the period 2004 2007 results showed that most airlines have witnessed significant decrease in their productivity efficiency scale and technology measures using a second stage tobit regression this article attributed the sources of productivity and efficiency changes to factors such as stage length load factor and airline size this article also discussed the negative impacts of oil price using illustrations from the uk and other international airlines

gender social norms and household production in burkina faso abstractempirical studies of intrahousehold allocation have revealed that in many instances gender is an important determinant in the allocation of resources within the household yet within the theoretical literature why gender matters within the household remains an open question in this article we propose a simple model of intrahousehold allocation based on a particular social institution for the organization of agricultural production practiced among certain ethnic groups in west africa we highlight how this institution while resolving certain problems of commitment and informational asymmetry can also lead to a gendered pattern in the allocation of productive resources and consumption within the household using a survey of agricultural households in burkina faso we show consistent with this theory that plots owned by the head of the household are farmed more intensively and achieve higher yields than plots with similar characteristics owned by other household members male and female fam

political coalition breaking and sustainability of policy reform abstract this paper examines the need and potential for coalition breaking in policy reform efforts related to agriculture and the environment the objective is to consider traditional policy tools that can break existing political coalitions given the powerful noncompetitive role of strong interest groups such as government bureaucracy and large trading organizations choice of the policy mix is modeled as a cooperative game a modification of the nash bargaining solution is used to endogenize coalition formation this framework is then used to examine the potential for an external development agency to promote environmental interests in the policy formation process the results explain how in some countries a small increase in strategic aid may achieve a major breakthrough in policy reform even if past activities have been unproductive and how in other countries a major increase in aid may be fruitless

management ownership and market valuation an empirical analysis we investigate the relationship between management ownership and market valuation of the firm as measured by tobin s q in a 1980 cross section of 371 fortune 500 firms we find evidence of a significant nonmonotonic relationship tobin s q first increases then declines and finally rises slightly as ownership by the board of directors rises for older firms there is evidence that q is lower when the firm is run by a member of the founding family than when it is run by an officer unrelated to the founder

the cost and technological structure of aluminium smelters worldwide a cost model is developed for the estimation of several technological parameters describing the production process of aluminium smelters worldwide the model is similar to baltagi and griffin s 1988 but instead of estimating technological change using a panel data set of firms we estimate among other things the vintage effect using a cross section of aluminium smelters in operation throughout 1994 the vintage effect is defined as the variable cost differential that may be attributed to the utilization of a specific technical vintage in the production of aluminium in relation to another other technological measurements are also discussed the scale effect or returns to scale and technological characteristic effects i e the variable cost elasticities with respect to pot size and current intensity the results show that considerable cost reductions may be expected from the change of old technical vintages to more recent ones also results show that for a majority of smelters in the sample returns to scale seem to be exhausted finally variable costs are very sensitive to pot size in the sense that large cost reductions can be expected from the increase in pot size an important characteristic of the technology used by smelters copyright 2000 john wiley sons ltd

productivity growth technical progress and efficiency in their comment subhash c ray and evangelia desli 1997 hereafter rd point out that the specification of the decomposition of the malmquist productivity index used by fare et al 1994 hereafter fgnz is not unique and propose and compute an alternative specification of that decomposition we will discuss additional decompositions at the end of this note but proceed here by comparing the rd decomposition with fgnz based on both conceptual and computational grounds rd provide a discussion of the overall malmquist productivity index including the important issue of when this index is equivalent to the traditional notion of total factor productivity tfp namely under the condition that the reference technology be consistent with constant returns to scale crs as they point out this will yield a measure of tfp even if the true underlying technology is not crs for example both rd and fgnz use the crs reference technology to compute overall malmquist productivity one of the key issues raised is the role of the underlying scale properties of the benchmark technologies used to define and compute both productivity and its components in particular two reference technologies are employed in both rd and fgnz what we refer to as crs and variable returns to scale vrs technologies by construction these technologies are nested the crs technology contains the vrs technology as in figure 1 in rd this nestedness provides the logical basis for our decomposition at a very intuitive level we would argue that these two benchmarks can be used to provide bounds on the underlying true but unknown technology 2 intuitively we see the vrs technology providing a type of convex inner approximation whereas the crs technology provides a type of convex outer approximation thus these two technologies provide alternative benchmarks they do not require that the data satisfy either crs or vrs another possible intuitive interpretation is that the crs captures a perhaps hypothetical long run and the vrs approximates the short run as a reference technology the crs technology has some very useful features for example it captures the notion of maximal

caught in a productivity trap a distributional perspective on gender differences in malawian agriculture in targeting poverty gains sub saharan african governments have emphasized the alleviation of gender differences in agricultural productivity the empirical studies on the gender gap however have frequently used data that were limited regarding geographic and topical coverage and or details on intra household dynamics the study provides a nationally representative analysis of the gender gap in malawi and decomposes it for the first time at the mean and at selected points of the agricultural productivity distribution into i a portion driven by gender differences in levels of observable attributes the endowment effect and ii a portion driven by gender differences in returns to the same set of observables the structure effect sequentially the authors unpack the relative contributions of different factors towards the gender gap and suggest future research priorities to inform policy interventions the authors find that while female managed plots are on average 25 percent less productive 82 percent of this differential is explained by differences in endowments mainly due to high value crop cultivation and levels of household adult male labor inputs the factors driving the structure effect include child dependency ratio and effectiveness of household adult male labor and inorganic fertilizer the gender gap increases across the productivity distribution ranging from 22 percent at the 10th percentile to 37 percent at the 90th percentile while it is explained predominantly by the endowment effect in the first half of the distribution the contribution of the structure effect towards the gender gap increases steadily above the median standing at 34 percent at the 90th percentile

the contribution of product mix versus efficiency and technical change in us banking abstract similar to a du pont analysis this paper divides the changes in returns on assets of us commercial banks for the period from 2000 to 2005 into conventional measures of bank performance the contribution of product mix is significant and offsets losses from technical change and operating efficiency banks respond to changes in the business environment by switching towards more lucrative traditional and nontraditional products large banks are found to benefit more than community banks from the switch to an optimal output portfolio mix including new products spawned by recent financial innovations and deregulation

determinants of the allocative cost and scope efficiencies of indian banks this study aims to investigate the impact of competition on determinants of allocative scope and cost efficiencies of indian scheduled commercial banks scbs specifically the study analyzes th

bank size and macroeconomic shock transmission does the credit channel operate through large or small banks in this paper i use u s call report data to construct a larger panel dataset with bank level observations i find that larger banks lending is considerably more sensitive to the strength of their borrowers and their own balance sheets compared to smaller banks and that the sensitivities to borrower balance sheets are larger in magnitude compared to lender balance sheets when i incorporate various macroeconomic shocks identified by an estimated dsge model into the empirical model i similarly find that the transmission of shocks to the real economy operates mostly through large bank lending and borrower balance sheets

environmental and gender impacts of land tenure regularization in africa pilot evidence from rwanda although increased global demand for land has led to renewed interest in african land tenure few models to address these issues quickly and at the required scale have been identified or evaluated the case of rwanda s nation wide and relatively low cost land tenure regularization program is thus of great interest this paper evaluates the short term impact some 2 5 years after completion of the pilots undertaken to fine tune the approach using a geographic discontinuity design with spatial fixed effects three key findings emerge from the analysis first the program improved land access for legally married women about 76 percent of married couples and prompted better recordation of inheritance rights without gender bias second the analysis finds a very large impact on investment and maintenance of soil conservation measures this effect was particularly pronounced for female headed households suggesting that this group had suffered from high levels of tenure insecurity which the program managed to reduce third land market activity declined allowing rejection of the hypothesis that the program caused a wave of distress sales or widespread landlessness by vulnerable people implications for program design and policy are discussed

tenure insecurity gender low cost land certification and land rental market participation in ethiopia abstract there is a renewed interest in whether land reforms can contribute to market development and poverty reduction in africa this paper assesses effects on the allocative efficiency of the land rental market of the low cost approach to land registration and certification of restricted property rights that was implemented in ethiopia in the late 1990s four rounds of a balanced household panel from 16 villages in northern ethiopia are analysed showing that land certification initially enhanced land rental market participation of potential tenant and landlord households especially those that are headed by females

leviathan resists the endogenous relationship between privatization and firm performance using a panel dataset of privatized cement firms in turkey this paper models and finds support for the simultaneous relationship between privatization and firm performance it is found that favorable short run performance weak market potential higher employment lower socio economic development concentrated voter preferences and weaker representation of right wing parties in the firms locality delay the timing of privatization the paper also finds that privatization increases output in the medium term by reducing the labor stock and promoting the adoption of more advanced technology such that production shifts from constant to decreasing returns to scale

a bayesian view of nominal money and real output through a new classical macroeconomic window this study investigates the empirical evidence on the effects of unanticipated changes in nominal money on real output in 47 countries when viewed through a window i e likelihood function that assumes the neutrality of anticipated changes using a bayesian predictivist approach it provides a pedagogical bayesian analysis of generated regressor models in the face of specification uncertainty involving among other things multiple unit roots and trend stationary alternatives

equilibrium in a market with sequential bargaining this paper considers a market where pairs of agents who are interested in carrying out a transaction are brought together by a stochastic process and upon meeting initiate a bargaining process over the terms of the transaction the basic bargaining problem is treated with the strategic approach the paper derives the steady state equilibrium agreements analyzes their dependence on market conditions such as the relative numbers of agents of different types and discusses their relations with the competitive equilibrium outcome and other results in the search equilibrium literature this paper considers a market that operates in the following way pairs of agents who have mutual interest in carrying out a transaction are brought together by a stochastic process when two agents meet they initiate a bargaining process over the terms of the transaction if two agents reach an agreement a transaction takes place and they leave the market of course the bargaining positions and hence the agreement reached in any particular meeting will be affected by the conditions prevailing in the market these will include the chances that each of the negotiating parties have of meeting other partners in the event that the agreement in the current negotiations is delayed also the expected length of time required to achieve an alternative transaction and the expected behavior of alternative partners the study of such a market mechanism is of interest for two reasons firstly it captures some realistic aspects of the trade in certain specific markets e g asset markets such as housing and some labor markets secondly it contributes to an understanding of the micro mechanisms of price formation and their role in shaping market outcomes in both cases the features studied are largely neglected in the traditional market equilibrium analyses the related literature includes the articles by diamond 4 5 diamond and maskin 6 mortensen 8 9 and zusman and bell 13 these articles consider markets of the type described above in which transactions are concluded at pairwise meetings of agents the major difference between our work and these articles is in the approach to the basic bargaining problem in the cited articles it is assumed that a meeting is concluded with an instantaneous agreement which divides the associated surplus in an arbitrary predetermined way when the surplus is assumed to be divided equally the division rule is in fact nash s axiomatic bargaining solution in contrast the present paper treats the basic bargaining problem with the strategic approach see rubinstein 19 which constitutes an attempt to look into the bargaining black box this approach explicitly models the time dimension of the bargaining process describes in detail the bargaining procedure and justifies the agreement as a perfect equilibrium in

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 micro economics of group behavior general characterization abstract we study the demand function of a group of s members facing a global budget constraint any vector belonging to the budget set can be consumed within the group with no restriction on the form of individual preferences the nature of individual consumptions or the form of the decision process beyond efficiency moreover only the group aggregate behavior summarized by its demand function is observable we provide necessary and locally sufficient restrictions that fully characterize the group s demand function with and without distribution factors we show that the private or public nature of consumption within the group is not testable from aggregate data on group behavior

imposing inequality restrictions efficiency gains from economic theory abstract econometricians may feel that imposing inequality restrictions improves statistical efficiency but no real empirical evidence exists the results of a monte carlo experiment show that imposing the curvature conditions on a system of demand equations improves the mses on estimated elasticities from 3 to 50 depending on the signal to noise ratio and the sample size

returns to scale at large banks in the us a random coefficient stochastic frontier approach abstract this paper investigates the returns to scale of large banks in the us over the period 1997 2010 this investigation is performed by estimating a random coefficient stochastic distance frontier model in the spirit of tsionas 2002 and greene 2005 2008 the primary advantage of this model is that its coefficients can vary across banks thereby allowing for unobserved technology heterogeneity among large banks in the us we find that failure to consider unobserved technology heterogeneity results in a misleading ranking of banks and mismeasured returns to scale our results show that the majority of large banks in the us exhibit constant returns to scale in addition our results suggest that banks of the same size can have different levels of returns to scale and there is no clear pattern among large banks in the us concerning the relationship between asset size and returns to scale due to the presence of technology heterogeneity

airline deregulation the cost pieces of the puzzle this paper analyzes cost changes in the u s airline industry in the pre and postderegulation era using a panel data set of airlines specifically it seeks to disentangle cost changes attributable to technical change economies of scale and density and input prices the authors estimate a purely general index of industry technical change and in turn analyze its determinants despite the slowing of productivity growth in the 1980s deregulation does appear to have stimulated technical change due to more efficient route structures copyright 1995 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the effects of privatization on efficiency how does privatization work summary uncovering the effects of privatization is difficult because privatization of a particular firm usually is not an accident this paper tests the effects of privatization on productive and allocative market efficiency using a rich panel data set of 22 privatized cement plants from turkey in the 1983 99 period since all public cement firms were privatized and we have pre and post privatization data for all we are able to avoid the problem of endogeneity associated with sample selection our analysis goes beyond just examining the privatization effects and explores how privatization really works changes in objectives of the firm ownership effect and changes in market structure environment effect may both be responsible for privatization outcomes we find that ownership effects are sufficient to achieve improvements in labor productivity our results on allocative efficiency however are dependent on changes in the competitive environment while all plants seem to improve labor productivity through work force reductions plants privatized to foreign buyers also increase their capital and investment significantly

european vs u s airlines performance comparison in a dynamic market abstract this study measures and compares the efficiency and productivity of european and u s airlines over the period from 2001 to 2008 we measure efficiency by estimating a bayesian distance frontier model subject to regularity constraints productivity estimates are also derived parametrically based on the estimates of the distance frontier model we estimate both a constrained i e subject to regularity conditions and an unconstrained model and we show the importance of imposing the monotonicity and curvature conditions on the distance function the efficiency and productivity results based on the constrained model indicate that european airlines have slightly higher efficiency and productivity growth than u s airlines a comparison based on the type of airlines indicates that low cost airlines are on average more productive and efficient than full service airlines the decomposition of productivity growth and related market discussions are also provided

how much of the labor in african agriculture is provided by women the contribution of women to labor in african agriculture is regularly quoted in the range of 60 to 80 percent using individual disaggregated plot level labor input data from nationally representative household surveys across six sub saharan african countries this study estimates the average female labor share in crop production at 40 percent it is slightly above 50 percent in malawi tanzania and uganda and substantially lower in nigeria 37 percent ethiopia 29 percent and niger 24 percent there are no systematic differences across crops and activities but female labor shares tend to be higher in households where women own a larger share of the land and when they are more educated controlling for the gender and knowledge profile of the respondents does not meaningfully change the predicted female labor shares the findings question prevailing assertions regarding substantial gains in aggregate crop output as a result of increasing female agricultural productivity

gender differences in the relationship between land ownership and managerial rights implications for intrahousehold farm labor allocation abstract recent research has increased interest in the intersection of land tenure and gender roles in african agriculture while formalization of land ownership has been found to have important gender impacts time use and management remain critical to both the productivity of agricultural operations as well as the welfare of household members thus it is important to understand how gender intersects with the relationship between the ownership and operation of plots we use plot level data from nationally representative household surveys in ethiopia and malawi to characterize the structure sole male sole female or joint and domain plot ownership plot management or output management of control over land in each household we then answer the following research questions 1 are there any gender gaps in the degrees of the concordance among different domains of controls and 2 how does the structure of ownership and managerial rights affect labor allocations on plots we find that for both males and females sole managerial rights are most likely to occur in plots owned exclusively by either gender however on jointly owned plots instances of sole planting rights are almost exclusively male we also find that while females supply more of their own labor to plots they control the pattern of own gender bias in labor allocation varies with each structure domain combination the heterogeneity suggests gender inequality analyses related to land rights are sensitive to the choice of domain of control

do large banks have lower costs new estimates of returns to scale for u s banks this paper presents new fully nonparametric estimates of ray scale and expansion path scale economies for u s banks based on a model of bank costs unlike prior studies that use models with restrictive parametric assumptions or limited samples our methodology uses local polynomial estimators and data on all u s banks over the period 1984 2006 our estimates indicate that as recently as 2006 most u s banks faced increasing returns to scale suggesting that scale economies are a plausible but not necessarily only reason for the growth in average bank size and that the tendency toward increasing scale is likely to continue unless checked by government intervention

conceptual developments in the economics of transportation an interpretive survey the objective in this paper is to survey the literature in transportation economics exploring two basic themes first the conceptual developments in the analysis of supply and demand which recognizes noteworthy aggregation biases in the empirical work on aggregate data and indicate that a correct analysis of the issues should take place at a highly disaggregated level second the use of these conceptual developments to evaluate efficiency aspects of transportation pricing investment and the impact of government regulation on resource allocation and distribution in the transportation sector it is important to acknowledge that the survey is based on research throughout the world but our institutional perspective and to some extent the topics that are covered is based largely on the u s experience author

bank competition efficiency in europe a frontier approach abstract there are numerous ways to indicate the degree of banking competition across countries antitrust authorities rely on the structure conduct performance paradigm while academics prefer price mark ups lerner index or correlations of input costs with output prices h statistic these measures are not always strongly correlated within or across countries frontier efficiency analysis is used to devise an alternative indicator of competition and rank european countries by their dispersion from a competition frontier the frontier is determined by how well payment and other costs explain variations in loan deposit rate spread and non interest activity revenues overall differences in competition appear to be small

productivity growth in canadian telecommunications canadian telecommunications firms do not price proportionately to marginal cost the prices of toll services tend to be above marginal costs whereas the prices of basic local services are typically set below marginal costs by regulators in such circumstances estimates of tfp growth using the conventional tornqvist divisia formula which weights outputs by revenue shares in determining the rate of growth of aggregate output is theoretically incorrect and needs to be replaced by a formula which uses cost elasticity weights empirically the conventional tornqvist index yields a very distorted picture of efficiency gains in the two largest canadian telephone companies during the 1980s for bell canada i calculate the upward bias to be approximately 75 percent over the period 1980 89 and 80 percent over the period 1985 89 for b c tel a similar calculation yields an upward bias of 37 percent over the period 1980 89 and 48 percent over the period 1985 89

the profits of power land rights and agricultural investment in ghana we examine the impact of ambiguous and contested land rights on investment and productivity in agriculture in akwapim ghana we show that individuals who hold powerful positions in a local political hierarchy have more secure tenure rights and that as a consequence they invest more in land fertility and have substantially higher output the intensity of investments on different plots cultivated by a given individual corresponds to that individual s security of tenure over those specific plots and in turn to the individual s position in the political hierarchy relevant to those specific plots

bot projects incentives and efficiency abstract in recent years governments have been increasingly adopting build operate transfer bot contracts for large infrastructure projects however bot contracts have received little attention from economists the apparent agency problem in bot projects has never been analyzed in this paper we develop a model to examine the incentives efficiency and regulation in bot contracts we show that a bot contract with a price regulation during the concession period and a license extension after the concession period is capable of achieving full efficiency both license extension and price control are observed in many real world bot projects we also investigate the efficiency in such contracts by considering other factors including time consistency price ceiling foreign ownership and the lack of price regulation

managers and efficiency in banking abstract this paper presents evidence on the impact of managers on cost efficiency in banking stochastic frontier analysis is applied to a unique finnish data set manager age and education have strong yet complicated effects on efficiency the impact of age on efficiency depends on education a university degree is useful mainly in the largest banks of the sample educational background seems to be less important for young managers than for mature ones managing director changes are systematically followed by efficiency changes retirement typically causes an efficiency improvement whereas other manager changes can either improve or weaken efficiency however in many cases mature managers outperform their young colleagues

behavior of the firm under regulatory constraint a recent article by akira takayama discusses an earlier paper by harvey averch and leland l johnson on fair rate of return regulation of public utilities although takayama p 255 agrees with averch and johnson s general conclusions that a firm will tend to increase its investment with the introduction of an active constraint on its rate of return he criticizes the a j argument as being confusing ambiguous and in error takayama then attempts a clarification and presents a new formulation which leads to the a j result quoted above this comment will discuss several of takayama s criticisms in addition to showing that the so called a j effect cannot be derived from the basic assumptions made by both averch and johnson and takayama 1 we will show that the very assumptions used to prove the a j effect by defining the region of x require an assumption that the a j effect exists in the first place

non cooperative bargaining theory an introduction the paper provides an informal introduction to some of the main themes of the recent literature on non cooperative or sequential bargaining models it focuses in particular on the relationship between the new approach and the traditional axiomatic approach exemplified by nash bargaining theory it illustrates the new insights offered by the non cooperative approach by reference to a detailed analysis of the manner in which the presence of an outside option available to one of the parties will affect the negotiated outcome finally the difficulties which arise in extending this analysis to two person bargaining with incomplete information and to n person bargaining are discussed this is a revised version of the fourth review of economic studies lecture presented in april 1985 at the joint meeting of the association of university teachers of economics and the royal economic society held in oxford the choice of lecturer is made by a panel whose members are currently professors hahn mirrlees and nobay and the paper is refereed in the usual way this paper aims to provide an informal and elementary introduction to an approach to bargaining which has received a great deal of attention over the past few years the approach involves writing down some particular sequence of moves offers and replies to be made over time in the course of negotiations and then looking for a non cooperative equilibrium in the game thus specified in practice a perfect equilibrium or in games of incomplete information a sequential equilibrium while the approach appears at first sight to be very different in spirit from the traditional axiomatic approach in which a bargaining solution is specified by appealing to a number of general requirements which are deemed appropriate on the basis of some a priori considerations the two approaches are in fact complementary while the

inefficiency of male and female labor supply in agricultural households evidence from uganda this article analyzes the efficiency of the intra household allocation of female and male labor inputs in agricultural production in a collective household model spouses optimal on farm labor supply is such that the marginal rate of technical substitution between male and female labor is equated over different crops using the uganda national household survey 2005 06 we test whether this condition holds by estimating production functions and controlling for endogeneity using a method proposed by gandhi navarro and rivers 2009 we find that women are less productive than men that there is more female labor input on low productivity parcels and that men are relatively more productive on female controlled plots compared with male controlled plots total farm output could be higher and pareto improvements could be possible if male labor was reallocated to female controlled plots and or female labor was reallocated to male controlled plots

land tenure and agricultural productivity in africa a comparative analysis of the economics literature and recent policy strategies and reforms summary this paper examines the convergence and divergence of results from economic studies of the relationships between land tenure security and agricultural productivity in africa and how these results have been incorporated into recent agricultural poverty alleviation and land policy documents the paper finds that there are both areas of convergence and divergence in the economics literature similarly the attention given to land tenure and its perceived effects on productivity varies considerably in the policy literature the significant heterogeneity in findings itself suggests that policy responses must pay attention to local context and the overarching macro and sectoral conditions within which tenure systems operate

profiting from government stakes in a command economy evidence from chinese asset sales abstract we examine the market response to an unexpected announcement of the sale of government owned shares in china in contrast to earlier work we find a negative effect of government ownership on returns at the announcement date and a symmetric positive effect from the policy s cancellation we suggest that this results from the absence of a chinese political transition to accompany economic reforms so that the benefits of political ties outweigh the efficiency costs of government shareholdings companies managed by former government officials have positive abnormal returns suggesting that personal ties can substitute for government ownership as a source of connections

economies of diversification in the us credit union sector summary significant scale economies have been recently cited to rationalize a dramatic growth in the us retail credit union sector over the past few decades in this paper we explore another plausible supply side explanation for the growth of the industry namely economies of diversification we focus on the fact that credit unions differ among themselves in the range of financial services they offer to their members since larger credit unions tend to offer a more diversified financial service menu than credit unions of a smaller size the incentive to grow in size may be fueled not only by present scale economies but also by economies of diversification this paper provides the first robust estimates of such economies of diversification for the credit union sector we estimate a flexible semiparametric smooth coefficient quantile panel data model with correlated effects that is capable of accommodating a four way heterogeneity among credit unions our results indicate the presence of non negligible economies of diversification in the industry we find that as many as 27 91 depending on the type and the cost quantile of diversified credit unions enjoy substantial economies of diversification the cost of most remaining credit unions is invariant to the scope of services we also find overwhelming evidence of increasing returns to scale in the industry

tariff retaliation from a strategic viewpoint one of the most perplexing questions in international trade concerns the rationale for the existence of widespread barriers to trade in the current world economy 1 the numerous explanations that have been offered for the existence of tariffs are generally based on one of the following four arguments a the existence of market imperfections monopolies externalities etc invalidates the free trade theorem and thus free trade is not desirable or perhaps not obtainable b sluggish adjustment of the world economy to free trade implies that the existing tariffs are a temporary phase c non economic phenomena such as nationalism induce political or institutional tariff arrangements or d protectionist motives to improve the welfare of a country or a group of individuals in that country induce all countries to simultaneously impose tariffs while all of these factors can be important in the explanation of the existence of tariffs the purpose of this paper is to develop an extended analysis of the protectionist view the protectionist view is based on the optimal tariff theorem which states under very restrictive assumptions that a country can improve its welfare by imposing a tariff 5 12 a serious difficulty with this explanation is that the optimal tariff theorem assumes that no retaliation occurs as scitovsky 12 points out a country that could benefit from charging a tariff has monopoly power in trade surely a country sophisticated enough to exercise monopoly power in trade would expect its rivals to respond when tariffs are erected hence scitovsky argues that if protection is the monopolistic behavior of a collectivity two countries raising tariffs against each other are bilateral monopolists and we know that bilateral monopoly results in the two parties coming to some working agreement whose terms depend on their bargaining skill and are analytically indeterminate scitovsky concluded that a tariff war would result in an indeterminate solution with both countries worse off johnson 6 formalized scitovsky s agrument by allowing each country to adopt a cournot type assumption regarding its rival s reaction to a change in its own tariff thus

efficiency and productivity growth in the banking industry of central and eastern europe abstract we employ the directional technology distance function and provide estimates of bank efficiency and productivity change across central and eastern european cee countries and across banks with different ownership status for the period 1998 2003 our results demonstrate the strong links of competition and concentration with bank efficiency they also show that productivity for the whole region initially declined but has improved more recently with further progress on institutional and structural reforms input biased technical change has been consistently positive throughout the entire period suggesting that the reforms have induced favorable changes in relative input prices and input mix however we find evidence of diverging trends in productivity growth patterns across banking industries and that foreign banks outperform domestic private and state owned banks both in terms of efficiency and productivity gains overall we find that productivity change in cee is driven by technological change rather than efficiency change

excess capacity a permanent characteristic of us airlines this paper examines the permanence of excess capacity in the us airline industry to avoid the problems with the standard engineering measure of capacity utilization load factor we define and measure capacity as an economic concept two measures of economic capacity utilization are then computed one a demand based measure and the other an output based measure of capacity utilization both measures share little in common with the standard engineering measure load factor and reveal some interesting attributes of airline travel demand this paper also provides interesting new insights into the role of deregulation and the costs of excess capacity during regulation specifically it is found that deregulation with the concomitant rationalization of route structures enabled airlines to move closer to their optimal levels of capacity and facilitated substantial improvements in capacity utilization and cost reductions over the period considered 1998 john wiley sons ltd

intergenerational trade longevity and economic growth we develop an overlapping generations model of endogenous growth in which human capital is the engine of growth and the generations are linked through material and emotional interdependencies within the family parents invest in their children to achieve both old age support care and emotional gratification and material support from children is determined through self enforcing implicit contracts we show that optimal intergenerational trade can then lead to maximization of growth opportunities our model produces a theory of the demographic transition linking longevity fertility and economic growth we also show that while population aging may raise the growth rate an increase in young age longevity is likely to produce a greater increase in the growth rate and a reduction in the fertility rate in a growth equilibrium these predictions and the model s implications concerning the behavior of private savings during the takeoff period appear consistent with empirical evidence

gender agricultural production and the theory of the household virtually all models of the household assume that the allocation of resources is pareto efficient within many african households agricultural production occurs on many plots controlled by different members of the household pareto efficiency implies that factors should be allocated efficiently across these plots i find in contrast that plots controlled by women are farmed much less intensively than similar plots within the household controlled by men the estimates imply that about 6 percent of output is lost because of inefficient factor allocation within the household the paper suggests a new approach to modeling intrahousehold allocation consistent with the empirical results

measuring and decomposing productivity change measuring productivity change with malmquist indices has become common practice because they are easily computed using nonparametric programming techniques and can be readily decomposed into technical and efficiency change however this approach is nonstochastic and requires a constant returns to scale assumption to construct the reference technology we propose estimating productivity change using a stochastic input distance frontier imposing no restrictions on returns to scale we derive the analogous decomposition of productivity change and develop a generalized method of moments strategy in which outputs or inputs may be endogenous we compare two methods in an application to electric utilities

measuring banks market power in the presence of economies of scale a scale corrected lerner index abstract a positive lerner index indicates a welfare loss for consumers due to deviations from marginal cost pricing such a welfare loss may not always be due to market power though in particular marginal cost pricing would result in negative profit for the firm in the presence of economies of scale in such a scenario a positive lerner index could simply reflect the firm s need to earn non negative profits rather than market power we propose a novel scale corrected price cost margin for firms that produce in the economies of scale range we show that this measure is more informative about market power than the lerner index itself as an empirical illustration we analyze market power in the u s banking sector using both the corrected and uncorrected lerner index the corrected lerner index reveals significant market power for u s commercial banks during the 2000 2014 period

trade negotiations in a nash bargaining model abstract this paper examines the impact on trade negotiation outcomes due to different feasible utility payoff sets when a country s tastes or endowment patterns are biased towards a single commodity or rely heavily on international exchange to improve utility the negotiated outcome in a two country nash shapley bargaining framework generally benefits its opponent

how did bank holding companies prosper in the 1990s abstract this paper examines the improved performance of us bank holding companies bhcs from 1991 to 1997 analysis of cost and profit functions using several alternative output specifications suggests that the gains were primarily due to productivity growth and changes in scale economies various econometric methodologies yield productivity growth of about 0 4 per year and the optimal size seems to have increased in the 1990s era of deregulation technological change and financial innovation estimates of both productivity growth and economies of scale are robust across traditional and non traditional output specifications despite the overall success however substantial cost and profit inefficiency existed for bhcs of all sizes in the 1990s these efficiency estimates are particularly sensitive to the output specification and failure to account for non traditional activities like off balance sheet obs items leads profit efficiency but not cost efficiency to be understated for the largest bhcs

improving police services evidence from the french quarter task force abstract this study sheds light on the improvement of police services by examining the french quarter task force fqtf an anti crime program in new orleans french quarter first we provide new evidence that increasing police presence is effective in crime prevention our difference in differences estimates suggest that the fqtf which increased police visibility in the french quarter reduced robberies aggravated assaults and thefts by 37 4 16 9 and 13 respectively second our findings imply that the proper use of monitoring and incentive strategies has the potential to further improve police services exploiting the program s change in management we find that providing officers with more monitoring and performance incentives led the fqtf to reduce robberies by 22 12 and aggravated assaults by 5 56 each quarter

measuring multi product banks market power using the lerner index abstract the aggregate lerner index is a popular composite measure of multi product banks market power based on total assets as the single aggregate output factor we show that the aggregate lerner index only qualifies as a consistently aggregated lerner index if three conditions hold under these conditions the aggregate lerner index reduces to a weighted average of the product specific lerner indices we test the three conditions for a sample of u s banks covering the years 2011 2017 all three conditions are rejected and we show that they may cause an economically relevant bias to the aggregate lerner index depending on the economic context as a general solution we propose using the always consistently aggregated weighted average lerner index whenever a composite lerner index is needed

the man of the house how the use of household head characteristics may lead to omitted variable bias abstract household heads are defined in many micro data sets and are usually male this paper illustrates potential consequences of the common practice of using only the household head s characteristics in empirical research

the roles of land tenure reforms and land markets in the context of population growth and land use intensification in africa this article reviews the past and potential future roles of land tenure reforms and land markets in sub saharan africa ssa as responses to population growth in the process of land use intensification and livelihood transformation the farm size distribution and the existence of an inverse relationship ir between farm size and land productivity in ssa and the implications of this relationship for efficiency and equity are investigated more secure property rights and removal of restrictions on land markets have the potential to create both efficiency and equity benefits but there are high risks of elite capture of large land areas with inefficient and inequitable outcomes this situation is the case not only in land abundant areas but also in urban and peri urban areas where increasingly larger proportions of people will make their living increasing population pressure in densely populated rural areas contributes to more rapid rural urban migration and creating alternative livelihood opportunities for the migrating youth population is essential to achieving economic development with social stability

on trade negotiation and trade diversification abstract the paper investigates the impact of a country s other trade opportunities or options on negotiated import quotas the predictions of the nash bargaining framework are supported by the data on canadian clothing import quotas and measures of outside options of developing countries with whom canada has negotiated voluntary export restraints

parametric decomposition of output growth using a stochastic input distance function midmore peter karagiannis g tzouvelekas v parametric decomposition of output growth using a stochastic input distance function american journal of agricultural economics 2004 86 4 pp 1044 1057

a general index of technical change this paper outlines a procedure for estimating a general index of technical change within the context of a quite general production technology specifically when panel data are available for firms in an industry time specific dummies can be combined in a nonlinear estimation procedure to yield a general index of technical change that may be both nonneutral and scale augmenting this approach offers numerous advantages over the traditional time trend representation of technical change for example the general index can serve as the basis for analysis of the determinants of technical change results for a sample of 30 electric utilities over the period 1951 78 show that the productivity decline of the 1970s can be attributed primarily to sulphur oxide restrictions and secularly declining capacity utilization due to rapidly increasing peak load demands

land tenure and investment incentives evidence from west africa abstract the existing literature on the relationship between property rights in land and agricultural investment in africa has given results that are often confusing and contradictory i make two clarifying contributions to this literature first i pull together existing studies and investigate whether the results they find have been affected by research methods or local contexts studies with small sample sizes those that use binary investment measures and those that control for household fixed effects are less likely to find a statistically significant link between land tenure and investment self reported tenure security has been a poor predictor of investment outcomes second i test for a relationship between land tenure and agricultural investment in nine data sets from west africa while the link between tenure and investment is significant for fallow and tree planting it is less robust for labor use and other inputs such as manure or chemical fertilizer

land markets and land access among female headed households in northwestern tanzania summary land markets can potentially improve land access for female headed households if markets exhibit less restrictive gender norms around land ownership as compared with non market based systems of allocation at the same time land markets may not operate in a gender neutral manner with restrictions beyond the market continuing to influence the options of female headed households using both qualitative data and household survey data collected in 2014 and 2015 this paper explores the extent and manner in which female heads participate in the sales and rental markets in northwestern tanzania a qualitative analysis reveals that female heads do engage with the market although they find it most difficult to mobilize the necessary capital to participate as buyers or renters women also seem to face unique restrictions on selling land regression results show that female heads use the market to augment a small land endowment left from their marriage and this is particularly true for divorced or separated women however female headed households remain somewhat marginalized in terms of market participation our study shows that female heads in tanzania are far from sidelined in the land market though the rules of market engagement are decidedly nuanced

politics and productivity i introduction economic studies of long run performance are focusing increasingly on political legal financial and social factors development is no longer regarded as a gradual inevitable transformation from self sufficiency to specialization and participation in the division of labor instead progress follows the creation and evolution of institutions that support social and commercial relationships the new institutional economics explains that growth requires that the potential hazards of trade shirking opportunism risk and so on be controlled by institutions like secure property rights reliable procedures for resolving disputes and means of enforcing contracts in the absence of close social ties these institutions reduce information costs encourage capital formation and capital mobility allow risks to be priced and shared and otherwise facilitate cooperation north and thomas 1973 north 1990 drobak and nye 1997 levine 1997 in particular political authorities must make credible commitments not to expropriate private resources once investments have been made 1 despite widespread agreement that institutions matter there is no consensus on how they should be incorporated into the analysis even the best empirical studies of productivity and growth treat institutional characteristics in an eclectic way barro s 1991 influential article for example uses the numbers of assassinations and revolutions per capita as proxies for political instability finding these measures negatively correlated with growth and investment scully 1988 regresses growth rates on dummy variables derived from gastil s 1982 ordinal rankings of political and economic liberty king and levine 1993a 1993b 1993c derive various measures of the quality of financial intermediaries and show that these measures are good predictors of growth this article presents a different approach to analyzing the relationship between institutions and aggregate economic performance following the modem productivity literature see for example fried et al 1993 we model economic performance with a stochastic production frontier frontier analysis is a form of benchmarking it analyzes a group of branches firms nations or other units by identifying best practices and evaluating each member s performance relative to the best practice frontier the results produce not only qualitative rankings of the group members but also numerical efficiency scores that can be used to assess the effects of various policies and characteristics for this reason frontier analysis is well suited for studying the effects of legal and political institutions on the economic performance of nations to capture institutional factors we use two comprehensive indexes of legal regulatory and political conditions working with a broad sample of countries from 1975 to 1990 we incorporate a widely used measure of economic freedom along with a new measure of policy stability to represent a country s institutional environment the new institutional economics suggests that countries with high levels of economic freedom protection of private property rights respect for the rule of law an unhampered price system and so on and policy stability commitment not to change the rules of the game ex post will be closer to the best practice frontier in our model economic freedom and policy stability affect economic performance by enhancing technical efficiency in other words these institutions do not alter the state of technology but they allow producers to squeeze more out of current technology for instance countries with more stable policies attract more foreign investment than countries with less stable policies ceteris paribus this leads to increased competition among producers which in turn brings efficiency gains similarly countries with lower taxes milder regulatory burdens lower inflation fewer restrictions on foreign ownership and so on are likely to produce output more efficiently than countries with policies that restrict production inhibit capital formation and reduce competition

explaining gender differentials in agricultural production in nigeria this paper uses data from the general household survey panel 2010 11 to analyze differences in agricultural productivity across male and female plot managers in nigeria the analysis utilizes the oaxaca blinder decomposition method which allows for decomposing the unconditional gender gap into i the portion caused by observable differences in the factors of production endowment effect and ii the unexplained portion caused by differences in returns to the same observed factors of production structural effect the analysis is conducted separately for the north and south regions excluding the west of the country the findings show that in the north women produce 28 percent less than men after controlling for observed factors of production while there are no significant gender differences in the south in the decomposition results the structural effect in the north is larger than the endowment at the mean although women in the north have access to less productive resources than men the results indicate that even if given the same level of inputs significant differences still emerge however for the south the decomposition results show that the endowment effect is more important than the structural effect access to resources explains most of the gender gap in the south and if women are given the same level of inputs as men the gap will be minimal the difference in the results for the north and south suggests that policy should vary by region

bilateral trade negotiations and trade diversification abstract this paper employs the nash bargaining framework to bilateral trade negotiations since country specific goods are imperfect substitutes for each other the amount of imperfection dictates a country s overall diversification or trade options which in turn determine bargaining gains evidence for semi industrialized countries tends to support this hypothesis

how does the choice of the gender indicator affect the analysis of gender differences in agricultural productivity evidence from uganda summary we use ols and decomposition techniques to investigate gender differences in agricultural productivity in uganda using nationally representative surveys from years 2009 2012 the analysis applies different gender dummies female head of household female plot holder and female plot manager to investigate how the variable of choice affects the calculation of the gender gap our analysis obtains different results depending on the gender variable of choice the study finds that regardless of the variable of choice the gender gap in agricultural productivity decreases or disappears when factors of production and crop choice are controlled for the conditional gender gap is about 10 and significant when using female plot manager as the gender variable while we find no conditional gender gap when using the other gender variables the use of time fixed effects and decomposition contributes evidence that the typically available gender variables are insufficient for identifying how gender and decision making of different household members play a role in productivity this finding is problematic for targeting effective interventions to increase agricultural productivity and reduce gender inequalities in agriculture finally we find that the older status of female heads holders and manager of plots child dependency ratio and limited access to adult male labor are factors decreasing productivity in female plots in uganda

noncooperative decision making in the household evidence from malawi this paper proposes a novel test of productive efficiency in the household that also allows a test of noncooperative decision making i extend the collective model chiappori 1988 1997 to allow labor choices to affect future bargaining power by raising the value of outside options even if household consumption sharing is efficient labor choices are no longer efficient using data on malawi where there is predetermined variation in land rights that determine outside options in marriage i show that individuals spend more time on agricultural labor and less time on wage labor when household land is theirs they also have lower overall income and consumption the results are inconsistent with the fully efficient collective model but consistent with a noncooperative model with limited commitment where individuals allocate their labor supply to maximize future bargaining power limited commitment can lead to inefficient allocations that reduce household welfare

are u s airlines really in crisis this study reflects on the technical efficiency of u s airlines using a bayesian random stochastic frontier model inferences from the bayesian estimation indicate that the random model fits the data well and outperforms the traditional stochastic frontier model the technical efficiency results indicate that u s airlines are operating at a declining efficiency rate with an average of 69 02 in 2007 results from returns to scale are also in line with the efficiency results more specific discussions on the current industry trends and other contributions of this study are presented and discussed

privatization and efficiency differentiating ownership effects from political organizational and dynamic effects this paper argues that the private public ownership factor should be differentiated from other factors that also influence the effect of privatization on efficiency this is empirically confirmed in a longitudinal study of 24 spanish firms for which several political and organizational factors are found to influence the estimated effects of privatization on efficiency the analysis of the timing of the effects reveals a strong significance for post privatization years 5 6 negative and 7 8 positive this suggests that the negative effect of these factors is transitional being eventually offset by the positive effects of the change to private ownership 2000 elsevier science b v all rights reserved jel classification l33

productivity growth technical progress and efficiency change in industrialized countries this paper analyzes productivity growth in 17 oecd countries over the period 1979 1988 a nonparametric programming method activity analysis is used to compute malmquist productivity indexes these are decomposed into two component measures namely technical change and efficiency change we find that u s productivity growth is slightly higher than average all of which is due to technical change japan s productivity growth is the highest in the sample with almost half due to efficiency change jel c43 d24 in this paper we apply recently developed

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

combining performance measures to investigate capacity changes in fisheries the common fisheries policy cfp aims to achieve a balance between the european fleet capacity and the resources available this can be realized either by temporarily reducing the fishing effort i e capacity utilization or quotas in the hope of increasing the resources available or reducing the actual fishing capacity in both cases the relationship between effort indicators and capacity needs to be resolved in order for the manager to introduce the right interventions previous studies have estimated these relationships in multi species fisheries using either a multi output distance function approach dfa or with a second stage data envelopment analysis dea both approaches have advantages and disadvantages in this article dea and dfa are combined to reduce noise in the estimation and to establish more useful interpretations for the manager the article compares the traditional dfa with the alternative approach for the danish north sea demersal trawlers the alternative approach improves the es

gender inequalities in ownership and control of land in africa myth and reality lack of clarity behind measurement and interpretation of statistics on gender and land leads to an inability to clearly articulate a policy response to the potential inequalities faced by women and men this article sets out to explore conceptually and empirically the levels and relative inequalities in land rights between women and men in african countries the first section of the article engages in a conceptual discussion of how to measure gendered land outcomes what ownership and control mean in different contexts and why attention to these factors is important for the development of gender and land statistics the second section of the article systematically reviews existing evidence from microlevel large sample studies to summarize recent trends in land access ownership and control by sex the third section presents new statistics from a variety of nationally representative and large scale unpublished data on gender and land in africa results provide not only a nuanced understanding of the importance of measuring land indicators for gendered development in africa and globally but also new statistics on a variety of land outcomes to aid stakeholders in the discussion of gender land inequalities

productivity growth and firm ownership an analytical and empirical investigation we focus on the effect of state versus private ownership on the rates of firm specific productivity growth and cost decline by developing a model of endogenous firm specific productivity growth and testing its implications against panel data on 23 international airlines of varying levels of state ownership over the period 1973 83 our model and empirical results show that state ownership can lower the long run annual rate of productivity growth or cost decline but not necessarily their levels in the short run observed level differences in productive efficiency across private and state owned firms may thus be a function of the age distribution of the firms being compared these results appear to be independent of whether the firms operate under apparently more or less competitive or regulated markets and whether they differ in production scales the analysis offers new insights concerning the recent trend toward privatizing state owned enterprises that has been observed in many countries

efficiency technical change and returns to scale in large us banks panel data evidence from an output distance function satisfying theoretical regularity abstract this paper provides parametric estimates of technical change efficiency change economies of scale and total factor productivity growth for large banks those with assets in excess of 1 billion in the united states over the period from 2000 to 2005 this is done by estimating an output distance function subject to theoretical regularity within a bayesian framework we find that failure to incorporate theoretical regularity conditions results in mismeasured shadow revenue and or cost shares which in turn leads to perverse conclusions regarding productivity growth our results from the regularity constrained model show that total factor productivity of the large us banks grew at an average rate of 1 98 over the sample period however our estimates also show a clear downward trend in the growth rate of total factor productivity and our decomposition of the primal divisia total factor productivity growth index into its three components technical change efficiency change and economies of scale indicates that technical change is the driving force behind this decline