Technical Efficiency Measures and Its Determinants for Olive Producing Farms in Tunisia: A Stochastic Frontier Analysis

Abstract: This paper investigates farm level technical efficiency of production and its determinants in a sample of 178 olive producing farms in Tunisia using a stochastic frontier production function approach applied to cross‐section data. Results indicate that technical efficiency of production in the sample of olive producing farms investigated ranges from a minimum of 58.5 per cent to a maximum of 95.5 per cent with an average technical efficiency estimate of 82 per cent. This suggests that olive producers may increase their production by as much as 18 per cent through more efficient use of production inputs. Further, the estimated coefficients in the technical inefficiency model indicate the positive effect on technical efficiency of the share of productive trees, the share of skilled labour and agricultural training. However, a negative relationship between technical efficiency and fruit trees is found.     

Stochastic Estimation of Firm Inefficiency Using Distance Functions

Econometric estimation of allocative and technical efficiency has frequently been carried out using a shadow cost function and its associated share or demand equations. Since the problem is formulated in terms of shadow prices, the effect of allocative inefficiency on input usage must be computed indirectly from input share or demand equations. As an alternative approach, we derive and estimate an input shadow distance system comprising the dual shadow input distance function and the price equations derived from the shadow cost minimization problem. Estimated shadow quantities provide direct estimates of the effect of allocative inefficiency on input usage. One can also easily calculate firm- and time-varying technical inefficiency by decomposing the residuals. We also compute returns to scale and the cost savings obtained by eliminating both types of inefficiency, Our approach is illustrated using a panel of U.S. railroads.     

Determinants of Factor Misallocation in Agricultural Production and Implications for Agricultural Supply‐side Reform in China

Allocative inefficiency in agriculture is an issue puzzling researchers and policy‐makers in China. Based on household data from the China Family Panel Studies of 2012, the present paper quantifies the potential distortions in China's agricultural production and examines their underlying determinants across regions. The results reveal that there are different levels of distortions across regions. The Middle region is facing the greatest distortion. Increases in machinery input, the proportion of non‐farm income and effective labor input will reduce distortions. Household saving, farmland rent and farmland size are significantly positively related to distortions. There is a complementary effect between labor and farmland in alleviating production inefficiency, but substitution effects exist between capital and farmland and also capital and labor. The increase in farmland size will aggravate the impact of capital on distortions. Given the constraint of super small‐scale farmland, facilitating land transfer is a necessary precondition for improving allocative efficiency.     

Total factor productivity in South African agriculture, 1947‐91

Indices of total factor productivity (TFP) measure aggregate output per unit of aggregate input, providing a guide to the efficiency of agricultural production. This article outlines the relationship between production functions and TFP indices. Then, an index is constructed for South African agriculture for the period 1947‐91. The index shows that TFP grew at an average rate of 1,3 per cent per annum. However, TFP growth has increased since the reforms of the early 1980s. Since capital has been more realistically priced relative to labour, greater productivity growth has gone together with increasing employment, which must have improved social welfare.     

Assessing aggregate reallocation effects with heterogeneous inputs,and evidence across countries

Theoretically, reallocating an input from a firm where the input has low marginal product to a firm where the input has high marginal product would increase aggregate productivity without any underlying change in technology. This paper argues that measuring these reallocation effects requires accounting for detailed input types because, for example, differences in wages across producers often reflect the skill mix of workers, not allocative inefficiency. The paper develops an approach to measuring reallocation that accounts for worker skill and the composition of capital assets, thus focuses on the set of countries for which this information is available. The results show once input heterogeneity is accounted for, the effects of reallocation on aggregate productivity were small on average, but sizable in a subset of countries. Panel regressions indicate that reallocation effects are related to population distribution and government effectiveness.     

The Changing Pattern of Productive Efficiency in the Chinese Iron and Steel Industry

This study aims to explain the changing pattern of productive efficiency of the Chinese iron and steel industry during the 1980s. By decomposing productive inefficiency into technical, allocative and scale inefficiencies, the effect of market-oriented reform measures on inefficient resource utilization is empirically tested. A consistent improvement is found in technical efficiency from different sized firms. An improvement in allocative efficiency of investment in upgrading and innovation from different sized firms is also found. Allocative efficiency of working capital was found to have hardly improved which could be largely due to distorted factor markets. Different sized firms exhibited scale inefficiency which could be due to segmented local production and the impact of a two-tier price system on the distribution of production share among firms.     

Nonparametric Evaluation of Economies of Scope in the Context of Technical Efficiency: The Case of Rice and Vegetable Farms in Korea

This paper provides a nonparametric evaluation of economies of scope in the context of technical efficiency allowing for non‐convexity, with an application to Korean rice and vegetable farms. Relying on non‐parametric‐free disposal hull and data envelopment analysis approaches and input–output data for rice and vegetable farms from the Korea Farm Household Economy Survey data collected in 2007, this article examines technical inefficiency and its decomposition under non‐convexity and convexity. Empirical measures of technical inefficiency and its decomposition results are provided, with a focus on a component of technical inefficiency associated with economies of scope (i.e. diversification benefits) under non‐convexity in production technology. The decomposition measures of technical inefficiency include pure technical inefficiency, size inefficiency and diversification inefficiency. The results provide empirical evidence supporting size‐dependent diversification strategies, where benefits of diversification are larger for small farms on average compared to those of large farms.     

Effect of agglomeration on technical efficiency of small and medium‐sized garment firms in Egypt

This study investigates the effect of agglomeration on technical efficiency of small and medium‐sized garment firms in Egypt. Using a sample of 502 firms, we estimated a translog stochastic frontier production function with inefficiency components. We also applied a switching regression model to address self‐selection in choice of agglomeration. Results confirm that agglomeration enhances technical efficiency of sampled firms through development of industrial linkages and accumulation of human capital. Given the increasing importance of cluster‐based development policies, we underscore the need to promote agglomeration of garment firms, and thereby foster forward and backward linkages to improve their efficiency and to develop global value chains.     

The Focus Efficiency of U.S. Hospitals

Hospital productivity has been a research topic for over two decades. Whereas much has been learned regarding cost, technical, scale, and allocative efficiency as well as the impact that weakly disposable inputs/outputs have on hospital behavior, we expand on this research by examining size and service offering, or focus, efficiency at the metropolitan area level for US hospitals. By using an extension of the Free Coordination Hull (FCH), we are able to determine whether hospitals in our sample could become more efficient if they provided more services (reduce inefficiency due to too narrow a focus) or fewer services (reduce inefficiency due to too broad a focus). Our results suggest that findings vary among the hospital markets. This approach could be used by policy makers and managers in order to reduce costs by sharing services, reducing services in hospitals, or expanding services in hospitals. Findings from a study such as this should aid reform programs by providing more information on the sources of hospital inefficiency.     

Empirical Evidence of Productivity Growth in Tunisian Agriculture: 1961–2000

Abstract: This paper investigates the patterns of productivity growth in Tunisian agriculture during the period 1961–2000. Results indicate that output growth in Tunisian agriculture was high over the whole period of investigation. During the 1981–90 period, average output grew at an impressive rate exceeding 6 per cent. Over the whole period, capital was the most important contributor to output growth and labour was found to be the least significant contributor to economic growth. Total factor productivity contribution to output growth decreased from over 4 per cent in both the 1961–70 and 1981–90 periods to less than 3 per cent in both the 1971–80 and 1991–2000 periods. On average, productivity growth increased at an annual rate of 3.6 per cent.     

Inefficiencies in the Japanese National Health Insurance system: A stochastic frontier approach

In this study, I examine the cost inefficiency and production inefficiency of municipal insurers operating under the Japanese National Health Insurance system. I employ insurer-level panel data for 2005 and 2010 and adopt stochastic frontier cost and production models to overcome analytical problems encountered in previous studies. The cost frontier estimates indicate that adverse effects on efficiency are associated with aging of the insured population, soft budget constraints due to government subsidies, insurer contributions to the elder care systems, and an increase in care provider densities. A positive effect on efficiency is associated with an expansion in insurer scale. The production frontier estimates suggest that cost inefficiencies decreased by roughly 15 percent between 2005 and 2010. The correlation between cost inefficiency and technical inefficiency is not particularly strong, whereas the correlation between cost inefficiency and allocative inefficiency is strong and positive.     

Factors Affecting Technical Efficiency among Coffee Farmers in Côte d’Ivoire: Evidence from the Centre West Region

This paper presents measures of technical efficiency for a sample of 81 peasant farmers in the low‐income region of Côte d’Ivoire. DEA techniques were used to compute farm‐level technical efficiency (TE) measures. The analysis reveals average levels of technical efficiency equal to 36 per cent and 47 per cent respectively for the CCR ( Charnes et al., 1978 ) and BCC ( Banker et al., 1984 ) models. These results suggest that substantial gains in output and/or decreases in cost can be attained given existing technology. In a second step analysis, two‐limit Tobit regression techniques were used to examine the relationship between TE and various farm/farmer characteristics. From a policy point of view, an important conclusion stemming from the analysis of our sample is that family size, membership to farmer's club or association and the origin of the farmer are the variables found to be most promising for action. The analysis suggests that policymakers should foster the development of the formal farmers’ club or association by building the capacity of the farmers. Our analysis also supports the argument for public sector involvement in the provision of information on labour force management to peasant farmers as a means to improve efficiency levels, and thus household incomes.     

Factor Determinants of Total Factor Productivity Growth in Malaysian Manufacturing Industries: a decomposition analysis

To decompose total factor productivity growth into technical progress, technical efficiency change, allocative efficiency change, and scale efficiency change, a stochastic frontier approach was applied to Malaysian manufacturing data covering the period 2000 to 2004. The results show that total factor productivity was driven mainly by technical progress but was hurt by deteriorating technical efficiency. Scale efficiency and allocative efficiency also exerted significant influences on total factor productivity. The skill and quality of workers were the most important determinants of technical efficiency, whereas foreign ownership, imports, and employee quality underpinned technical progress. The impact of firm size on scale economies differed across industries.     

A Generalized Distance Function and the Analysis of Production Efficiency

A generalization of Shephard's distance functions is proposed, extending the usefulness of distance functions in economic analysis. Applications to efficiency measurements and productivity analysis are presented. New indexes of productivity and technical, allocative, and scale efficiency are proposed and analyzed. Interpretation of these indexes in terms of ray-average cost, ray-average revenue, and cost-to-revenue ratio is discussed.     

Technical Inefficiency and Production Risk in Rice Farming: Evidence from Central Luzon Philippines*

There have been many previous studies of technical inefficiency in rice production in the Philippines, but none has focused simultaneously on production risk and technical inefficiency at the farm level. Rice production is inherently risky because of the heterogeneous production environment. In this study, we analyze technical inefficiency in a rainfed lowland rice environment in Central Luzon using a stochastic frontier production function with a heteroskedastic error structure. An 8‐year panel dataset collected from 46 rainfed rice farmers was used to estimate flexible functional specifications. Over the whole period, the average technical efficiency was found to be 79 percent. Results indicate that there is a high degree of variability in technical efficiency estimates, which can be attributed to the instability of farming conditions in the rainfed lowland environment. Mean output was signifificantly influenced by area planted to rice, labor and the amount of fertilizer used. Consequently, these inputs were found to be risk‐increasing, whereas herbicide was found to be a risk‐reducing input.     

The economic geography of race in the New World: Brazil, 1500–2000†

Race is a fundamental aspect of historical inequality and institutions, yet it is at times overlooked within the literature on comparative development in the Americas. This article investigates the nature of staple production in Brazil and attendant changes in the racial composition of 20 modern states from its discovery by the Portuguese to the present. The Indigenous population was surpassed by that of African descent in the north‐east, south‐east, and north, respectively, during the seventeenth and eighteenth centuries; not until decades after the abolition of slavery did people of European heritage come to constitute a majority. These transitions were guided by the relative productivity, natural increase, and price of Native and African slaves, contingent on the extent of natural resource wealth (mineral deposits or land suitable for growing cash crops) and supply of free labour. In those areas where slavery was most profitable, a 1 per cent increase in the relative cost of Native labour raised the proportion of people of African ancestry by up to 2 per cent, depending on the measures of slave prices and racial classifications considered. This relationship is robust to changes in output prices or the populace of European descent, and alternative scenarios of aboriginal population decline.     

基于DEA的我国上市商业银行经营效率分析（2003-2010）

主要以我国13家上市商业银行2003—2010年的数据为研究样本,选取投入和产出指标,运用DEA模型对其技术效率、纯技术效率以及规模效率进行分析、比较,研究表明股份制商业银行明显要比国有商业银行的经营效率高,规模效率低影响了商业银行整体效率。文章最后指出要提高我国上市商业银行的经营效率,可以从提高我国上市商业银行规模效率和创新能力等几个方面着手。     

Competitiveness and Efficiency of the Banking Sector and Economic Growth in Egypt

Abstract: This paper investigates the impact of financial reforms on competitiveness and production efficiency of the banking sector, as well as the short‐term and long‐term impact on economic growth, in Egypt during 1992–2007. The results suggest that the reforms have a positive and significant effect on competitiveness and production efficiency. Also, the evidence shows that state‐owned banks are generally less competitive than private banks and foreign banks are less competitive than domestic banks. The average x‐inefficiency of Egyptian banks is around 30 per cent, which is comparable to those reported for other African countries. Finally, there is evidence to suggest a significant relationship between financial bank productive efficiency and economic growth in the short run but not in the long run. Overall, the results support the argument for continuing the financial sector reform programme in Egypt.     

The efficiency and productivity of Japanese securities firms, 1988–93

Non-parametric linear programming methods are used to construct the production technology and measure overall cost efficiency for Japanese securities firms during the period 1988–93. Overall cost efficiency is decomposed into allocative efficiency, pure technical efficiency, scale efficiency, and congestion efficiency. The Malmquist input-based productivity index is also constructed and used to compare productivity change between the Big Four Japanese securities firms and other securities firms. The effects of various keiretsu links between securities firms and banks on overall cost efficiency are also examined.     

‘Voice’ and ‘exit’ in Japanese firms during the Second World War: Sanpo revisited*

During the Second World War, the Japanese government and private sector searched for and implemented new mechanisms for coordination and motivation. One of these was sangyo hokokukai (sanpo). The Sanpo unit was basically an organization of the employer and employees of each firm, which held meetings to moderate labour relations. As a result of government policy to promote sanpo units, around 70 per cent of the total workers in Japan were organized into sanpo units in the early 1940s. As the members of trades unions and the workers of the companies that had factory committees were only 7 per cent and 5 per cent of the total workers in 1936 respectively, sanpo was the first large‐scale mechanism for Japanese employees to have a voice. This article examines the role of sanpo, using prefecture‐level and firm‐level data, based on a framework integrating the ‘voice view’ of unionism and transaction cost economics. It was found that sanpo reduced the participation rate in labour disputes, and enhanced labour productivity at least for some of the time.