中印两国商业银行经营效率比较研究——基于群组效率指数的分析

文章以Camanho和Dyson(2006)发展的群组效率指数法为基础,结合双曲线距离函数,在规模报酬可变的假设条件下,对中印两国银行业的经营效率进行了比较研究。结果显示,印度银行业群组效率在研究期间内基本上优于中国银行业,主要原因在于印度银行业生产前沿的生产率和群组规模效率的一致性都优于中国银行业,但中国银行业群组技术效率的一致性却均高于印度银行业。因此,简单地说印度银行业的效率高于中国银行业是不准确的。     

Information technology,efficiency and productivity: evidence from Korean local governments

This study evaluates the performance of Korean local government by measuring their technical efficiency (TE) and total factor productivity (TFP) growth and, more importantly, examining the impact of information technology (IT) on this performance. The study is different from received analysis in that a unique measure of the state of IT–the Informatization Index–is used to investigate the impact of IT on both TE and TFP growth. Empirical analyses are conducted on data from 222 Korean local governments for the period 1999 to 2001. In particular, data envelopment analysis techniques are applied to calculate TE scores and TFP growth rates for sampled local governments. The empirical findings confirm the positive impact IT has in improving technical efficiency and accelerating productivity growth. The estimated coefficients are correctly signed (with other regional characteristics controlled for) when TE scores and TFP growth rates are regressed on the Index. In addition, the findings indicate that economies of density are present in the production of local public services.     

CONCEPTUAL INCONGRUITY IN THE NATIONAL ACCOUNTS

This paper is presented as a general contribution to discussions underway with respect to the revision of the SNA. The author argues that underlying premises in the current (1968) version of the SNA tend to favour quantitative aspects of production and that the treatment of certain financial items such as interest and valuation of inventory change have been compromised in regard to their effects on production.
The need for alternative approaches to these components in the subaccounts of the SNA is emphasized, the rationale involved is explained and modifications to some of the subaccounts are proposed. The alternative approaches affect the boundaries of production and it is argued that the new boundaries would provide a more realistic representation of current values of gross domestic product. It is also noted that the modified production accounts are more compatible with the balance sheet subaccounts.
The author shows that production subaccounts on input-output and productivity are based on the need for quantitative measures in analysing growth in the volume of goods and services produced and of productivity to determine efficiency of factor utilization. It is argued that the existing conceptual structure of these two subaccounts meet these needs and should be retained in their present form.     

Do Listed Banks have Higher Operating Efficiency and Output Efficiency?

This paper investigates the efficiency and productivity of listed and non‐listed banks in China by using the meta‐frontier and GMMPI methods. We find that the improvement in productivity of listed and non‐listed banks is mainly due to changes in technological efficiency. The difference between them is that the improvement of productivity of listed banks presents a typical technology‐driven feature, and changes in scale efficiency negatively affect productivity. The productivity of non‐listed banks shows scale efficiency driving features. The meta‐frontier efficiency of listed banks is significantly higher than the others. After decomposing the technology gap ratio, we find that the current production technology of the listed banks is closer to the potential production technology frontiers, and there is space for the non‐listed banks to improve their efficiency. Besides, the gaps between the true extent and the potential technological frontiers of both listed banks and non‐listed banks have converged.     

R&D and manufacturing production specialization in developed economies

A study of the relation between technology and manufacturing production specialization in a series of developed economies is performed by means of models relating indicators of revealed symmetric comparative advantage of value added and exports to similar measures of comparative performance of R&D expenditure, capital intensity, total factor productivity and wage costs. The production and R&D specialization are shown to be substantial and sticky. This contrasts with the evidence of a substantial degree of convergence in the patterns of the other variables. Regression estimates show that, although all variables play their part, the impact of comparative R&D efforts on production specialization is by far the strongest. This impact is found to be stronger in the smaller economies and it is especially important in research-intensive industries. The influence of comparative wages is, moreover, found to be positive here, suggesting the dominance of a labour skill and efficiency wage effect over a wage cost competitiveness effect. These findings are shown to conform quite well with the predictions of Schumpeterian theory and of certain contributions to ‘new trade theory’ that have stressed the importance of dynamic economies of scale.     

MODELLING PRODUCTIVITY EFFECTS OF TRADE OPENNESS: A DUAL APPROACH*

A cost function framework is used to model the productivity effect of trade openness in terms of cost saving. The idea of ‘cost saving’ is closer to the entrepreneur's view of productivity. An entrepreneur would expect a reduction in the cost of production if trade openness brings any benefits to their firm. The output‐enhancing (primal) productivity effect of openness is obtainable from the cost‐saving (dual) productivity effect through the cost‐output link. The cost‐function framework also enables us to investigate whether trade openness induces firms to adopt a technology that is biased towards the use or saving of any factor of production. An empirical exercise based on time series data for the Australian two‐digit manufacturing industries reveals significant cost‐saving and output‐enhancing productivity effects of trade openness. Trade openness is biased towards the saving of labour and the use of capital. These results are quite insensitive to the choice of alternative measures of openness.     

Over-savings and hyperbolic discounting

Hyperbolic discounting models are widely seen as implying that consumers do not save enough, in accordance with the observed low rates of savings of some households. This paper qualifies this view by showing that hyperbolic consumers may ‘oversave’ in the short run. The result extends to uncertainty on future income and does not depend on whether preferences are present-biased or future-biased. A generalized comparative statics analysis of self-control is introduced, and its relationship to the analysis of uncertainty on discount factors is emphasized.     

专业化分工中的国家出口生产力的经验分析

一国的专业化分工模式是由其要素禀赋决定的。一国的出口生产力水平(EXPY值)取决于企业家在生产效率高(即PRODY值高)的部门参与"成本发现"的数量,成本发现的过程使一国专业化分工模式变得不确定。一国的出口生产力水平不但由其专业化分工模式所决定,该国人均GDP水平对其也具有一定的影响。文章以101个国家2006年的进出口数据计算世界各出口行业的部门生产力水平(PRODY值),计算并分析各国2006年EXPY值的分布特点。同时,文章以2006年PRODY值为依据,以OECD 30个国家为分析对象,计算1999-2010年OECD国家EXPY值的变化趋势,并对其影响因子进行了相关计量分析。     

Measuring performance in primary care: econometric analysis and DEA

We use data from the Health Service Indicators database to compare different methods of measuring the performance of English Family Health Services Authorities (FHSAs) in providing primary care. A variety of regression and data envelopment analysis methods are compared as summary efficiency measures of individual FHSA performance. The correlation of the rankings of FHSAs across DEA and regression methods, across two years of data and across three different specifications of the technology of primary care are examined. Efficiency scores are highly correlated within variants of the two methods, and across years for a given method. Inter method correlations are smaller and correlations across different specifications of the primary care production process are negligible and sometime negative.     

Sources of efficiency,productivity and output growth in Botswana agriculture

The purpose of this study is to explore reasons for the decline in agricultural performance in Botswana that has occurred during the implementation of a variety of policy measures, as well as the introduction of new technologies, and to identify ways in which it might be reversed. Panel data from six regions in Botswana (period 1979–2012) is analyzed with a stochastic output distance function and inefficiency effects model. We decompose agricultural output growth into; total factor productivity (TFP ) and changes in input use (factors of production). TFP is further decomposed into scale effects, technical efficiency and technological change. The results show that over the study period agricultural output grew at a very low rate of 0.072 percent per year, which is largely due to a growth in factors of production at 0.071 percent per year rather than TFP growth (which declined at 0.003 percent per year). We found that the decline in productivity has been due to technological regress and low growth in technical efficiency and scale efficiency. Policy options aimed at improving agricultural productivity and output growth will require the strengthening of extension services; improving the agronomic and husbandry management skills of farmers through training; and by encouraging farmers to adopt and utilize technologies that have been provided under existing policy programs.     

Public and private inputs in aggregate production and growth: a cross-country efficiency approach

In a cross section of OECD countries, we replace the macroeconomic production function by a production possibility frontier, total factor productivity being the composite effect of efficiency scores and possibility frontier changes. We consider, for the periods 1970, 1980, 1990 and 2000 one output – GDP per worker – and three inputs – human capital, public physical capital per worker and private physical capital per worker. We use a semi-parametric analysis, computing Malmquist productivity indexes, and we also resort to stochastic frontier analysis. Results show that private capital is important for growth, although public and human capital also contribute positively. A governance indicator, a nondiscretionary input, explains inefficiency. Better governance helps countries to achieve a better performance. Nonparametric and parametric results coincide rather closely on the movements of the countries vis-à-vis the possibility frontier and on their relative distances to the frontier.     

Total factor productivity in the Lithuanian family farms after accession to the EU: application of the bias-corrected Malmquist indices

The non-parametric measures of efficiency and productivity do not enable to fathom the underlying technology changes in terms of input saving and consumption. However, the bias-corrected Malmquist productivity index offers a remedy to this shortcoming. This paper, thus, employed the bias-corrected Malmquist productivity index to measurement of the total factor productivity changes in the Lithuanian family farms. The paper employed the Malmquist productivity indices to measure the technical changes (TCs) in terms of input-saving or input-use. Specifically, a sample of 200 family farms was used for the analysis. The research period covered years 2004–2009. The three farming types were considered, namely crop, livestock, and mixed farming. The analysis indicted that crop farming was peculiar with land-using and asset-saving TC, whereas labour-using and intermediate consumption saving TCs were observed only for certain combinations of inputs. As for livestock farms these generally experienced intermediate consumption and asset saving TCs against all the remaining inputs, whereas labour-saving and land-using TC varied with the reference inputs. Finally, mixed farms can be considered as those peculiar with increasing land use and decreasing capital consumption. Labour-using and intermediate consumption saving TCs did also hold for most of the analysed factors. The Lithuanian agricultural sector has not been analysed by the means of the bias-corrected Malmquist indices. Furthermore, there is a gap in the literature on the efficiency and total factor productivity in the Lithuanian farms in general. The present study, therefore, presents insights on the technology change based on non-parametric estimates.     

The productivity of French technology transfer offices after government reforms

This article assesses the productivity change of the French technology transfer offices (TTOs) after the introduction of the July 1999 innovation law and the new public management oriented reform. By using Data Envelopment Analysis (DEA)-based Malmquist productivity index, we find an average increase in the short-term productivity of the French TTOs driven by both positive efficiency and technology change. The bootstrap analysis reveals that these improvements are ascribed to 50% of the TTO systems, while the remaining part does not show significant changes. Moreover, while older TTOs positively contribute to the performance of French TTOs in the short run, young TTOs with hospital seem to contribute negatively to the efficiency of the entire system.     

An Experimental Study of Influences of Performance-Related Payments on Timing of Delegated Stock Purchases

Performance-related bonuses are important tools for investment organizations to incentivize stock traders. Yet, two experiments indicate that bonuses rewarding short-term performance may lead to worse timing of purchases. The authors propose that hyperbolic time discounting makes participants set lower aspired purchase prices for short-term (decreasing percentage) bonuses than for long-term (increasing percentage) bonuses. For this reason purchases are made earlier for decreasing than increasing percentage bonuses, earlier for decreasing than random prices, and earlier for high price volatility than for low price volatility. Neither purchases at the lowest price or highest bonus are attained. Hyperbolic time discounting may account for bubbles observed in experimental double-auction markets.     

Effects of re-invention on industry growth and productivity: evidence from steel refining technology in Japan, 1957–1968

This paper examines the economic impact of re-invention – the degree to which an innovation is modified by user – on industry growth and productivity. The paper focuses on two re-inventions made by a Japanese steel company; these inventions improved the productive efficiency of Austrian-made refining technology, namely basic oxygen furnace (BOF). Results obtained from the plant-level production function estimation indicate that re-inventions account for approximately 30% of the total factor productivity of the BOF, substantially promoting the dissemination of the BOF technology. Our simulation analysis indeed reveals that re-inventions contributed to steel output growth by about 14%. This paper also documents that innovating companies played the role of a ‘lead user’ in developing and disseminating their re-invented technologies.     

总需求、国际贸易与我国省际生产率变化——基于省际面板数据的研究

全要素生产率的提高是促进经济持续增长的重要原因,对生产率的研究,主要是从供给方面展开的,本文试图从需求角度研究全要素生产率变动的原因。理论上看,总需求通过影响技术创新、技术选择、规模经济效益和要素的使用效率等途径引起生产率的变化,国际贸易则通过促进分工深化、产生技术溢出等促进生产率的提高。然后,本文采用数据包络分析方法测算了中国省际全要素生产率变化,并将其分解为技术效率的变化和技术进步。结果发现中国改革开放以来全要素生产率增长主要是技术进步的结果,技术效率的作用很小。在测算和分解的基础上,利用省际面板数据,就总需求和国际贸易对生产率增长的影响作了实证分析,发现最终消费和资本形成对技术进步和全要素生产率的提高作用显著,出口对生产率增长的作用不显著,进口显著地促进了省际全要素生产率增长和技术进步。     

Assessing productivity changes in UK hospitals reflecting technology and input prices

In this study Malmquist productivity indexes are used to evaluate the performance of acute hospitals in the UK over the period after the introduction of the internal market in the National Health Service in 1991. The indexes are computed using nonparametric programming, known as Data Envelopment Analysis, and they are decomposed into multiple component measures to give insights into the trends in hospital performance. Overall it is found that productivity regressed in the year after the reforms but progressed thereafter so that overall there was a net progress both as far as the inputs and costs are concerned. Productivity progress is mainly due to overall efficiency progress, which in turn is mostly attributed to allocative efficiency improvements. Technical change resulted in a small reduction in the amount of inputs used but also at higher production costs, because of a worsening in the match between input mixes and relative input prices. However, it is suggested that the gains in productivity are not high enough to argue that the internal market has had a significant impact on productivity. Finally, it is argued that the methodologies employed here can be a valuable evaluative and managerial tool in the context of the new NHS reforms about to be introduced.     

中国主要旅游公司运营动态效率探析

选取中国旅游业中的10家上市公司为代表,将其2005-2008年的经营数据作为指标值进行DEA计算,分析各公司的技术效率、纯技术效率、规模效率、投入与产出松弛量以及Malmquist生产力指数可以发现,旅游业上市公司的综合效率不高,并且在效率上存在显著差异。应从提高现有资源的利用效率、加强现有资源的管理等方面提高中国旅游业的经营效率,实现产出的最大化。     

The distributional impact of large dams: Evidence from cropland productivity in Africa

We examine the distributional impact of large dams on cropland productivity in Africa. As our unit of analysis we use a hydrology based spatial breakdown of the continent that allows one to exactly define regions in terms of their upstream/downstream relationship at a highly disaggregated level. We then use satellite data to derive measures of cropland productivity within these areas. Our econometric analysis shows that while regions downstream benefit from large dams, no beneficial effects accrue to cropland within the vicinity. Moreover, we find that the productivity enhancing impact of upstream dams is dependent on the local climate. Overall our results suggest that upstream dams have quantitatively on average provided up to 12% of the minimum daily per capita amount of kilocalorie needs in downstream communities and increased agricultural production by 1%.     

Environmental spillover effects on firm productivity and efficiency: An analysis of agri-food business in Southeast Spain

Spillover effects are treated as the influence of knowledge and innovation diffusion on an economic activity, but their analysis related to environmental practices within firms is still quite scarce. This study investigates the effect of environmental practices and related spillovers on productivity and efficiency in agri-food firms located in Southeast Spain. The low investment in research and development actions in comparison with the industrial sector, together with the relatively recent application of environmental requirements and the heterogeneity of environmental controls within firms have led to important changes in the organisation and management of their productive activity. These features are especially related to the implications that location and clustering factors have on environmental knowledge and innovation diffusion. Taking environmental management practices as knowledge of capital, we propose a specific analysis that evaluates the impacts of both environmental investment and spillover on the production function. The results indicate the relationship between productivity improvement and environmental practices, also showing the presence of positive spillovers. In a second-stage analysis, the incidence of environmental variables on the individual technical efficiency of firms is also determined. On the whole, the empirical analysis provides evidence of the links between environmental practices spillovers and economic performance.