首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 93 毫秒
1.
Using recent agricultural data sets, we estimate a non-neutral and non-homothetic translog variable cost function to empirically investigate Philippine agricultural productivity. Overall, the annual average productivity growth rate is 0.51 percent. The highest productivity level is observed during the post-Green Revolution period (1974–1980). Thereafter, productivity growth shows a discernible decline up until the late 1990s. This indicates that productivity level during the Green Revolution era has not been sustained or paralleled, despite substantial policy changes put in place since 1986 to invigorate the agricultural sector. The government should therefore continue to promote technological progress in Philippine agriculture; however, this may require redirection of its present policy by placing more emphasis on productivity-enhancing investments, such as research and development, irrigation and other infrastructure.  相似文献   

2.
Abstract: The paper examines the economic performance of a large number of African countries using an international comparable data set and the latest technique for analysis. The paper focuses on growth in total factor productivity and its decomposition into technical change and efficiency change components. The analysis is undertaken using the data envelopment analysis (DEA). The present study uses data of 16 countries over the period 1970–2001. It was found that, globally, during that period, total factor productivity has experienced a positive evolution in sampled countries. This good performance of the agricultural sector was due to good progress in technical efficiency rather than technical progress. The region suffered a regression in productivity in the 1970s, and made some progress during the 1980s and 1990s. The study also highlights the fact that technical change has been the main constraint of achievement of high levels of total factor productivity during the reference period in sub‐Saharan Africa. Contrariwise, in Maghreb countries, technological change has been the main driving force of productivity growth. Finally, the results indicate that institutional factors as well as agro‐ecological factors are important determinants of agricultural productivity growth.  相似文献   

3.
Using provincial data, the present paper examines the impact of cultivated land conversion on agriculture and the environment. It is found that the grain production center is gradually moving towards more fragile and water scarce areas, putting more pressure on the environment. Land conversion caused large losses in ecosystem service values in the 1990s, but large scale ecological restoration programs have been implemented since 2000 to compensate for such losses. The ecological restoration programs are concentrated in regions with relatively low land productivity, whereas cultivated land conversion usually takes place in areas with relatively high land productivity. Newly-cultivated land, especially that in areas marginally suit for agricultural production, is likely to have much lower productivity levels than the original cultivated land. Because the stock of potentially cultivable land is almost exhausted, China's grain self-suffiency policy can only be maintained by preserving the available stock of arable land and increasing its productivity in a sustainable way.  相似文献   

4.
Given the importance of the manufacturing sector in the second-tier newly industrializing economy of Malaysia, this paper uses the stochastic frontier approach to assess the growth potential of this sector. This is performed by first estimating the production function by using panel data comprising 28 manufacturing industries over the period of 1981–1996. Unlike previous studies that used the growth accounting approach, here output growth is not just decomposed into input growth and total factor productivity growth but total factor productivity growth is further decomposed into technological progress and technical efficiency, thereby providing more direction for policy making.  相似文献   

5.
China is a country with a huge population but scarce cultivated land. The productivity of cultivated land must be improved to meet the increasing domestic demand for agricultural products. Taking Shandong as the example and utilizing X2D production function, the paper furthers the study on affecting factors of cultivated land productivity. Empirical study finds that technology progress especially that of land-saving bio-chemical technological improvement is the most important factor to improve land productivity.  相似文献   

6.
This paper studies contribution of capital deepening, technological progress and efficiency improvement to economic growth while focusing on cross-country data, and thus finds itself at the crossroads of growth and development accounting. We take a production frontier approach to growth accounting and choose DEA as the frontier estimation method. To explore the effects that windfall gains from natural resource use have on growth, output data are corrected for pure natural resource rents—part of GDP figures not earned by either labor or capital. Taking into account countries’ natural resources, we find that in the two decades from 1970 to 1990 the average contribution of technological catch-up to per worker output growth was, if anything, negative on the worldwide scale and this trend continued till the mid 1990ies. Analysis of efficiency estimates also shows a possible change over the period of 1970–1990 in the effect of natural resources on country’s performance  相似文献   

7.
The major objective of this article is to measure the inter-regional difference in agricultural productivity of China, and then to test empirically whether or not some relevant hypotheses with respect to agricultural technology are valid. The analysis shows that biochemical (BC) technological changes account for a significant part of China's agricultural production growth. This result is consistent with the fact that China's factor endowments are characterized by abundant farm labor relative to scarce arable land. Besides, in accordance with the standard theory of market failure, the benefits accruing to BC technological development are not privately appropriable. Thus, it can be hypothesized that the inter-regional difference in BC technological attainment must be closely associated with public spending in agricultural R&E activities at a local level. The random effects model reveals that the BC technological level is high in provinces where the public sectors are seriously committed to R&E activities. In addition, the analysis lends strong support to the validity of the induced innovation hypothesis with respect to M technological progress.  相似文献   

8.
This paper analyzes the dynamics of China's productivity for the period 1996–2004 with a newly developed methodology — generalized metafrontier Malmquist productivity index (gMMPI). Implementing the gMMPI, this paper reviews the inequality of the coastal and non-coastal provinces, as well as the latent impact of scale efficiency change (SEC) for China. Using provincial data for the years 1996–2004, the empirical results are as follows. On average, China demonstrates an annual 3.191% productivity change, which is lower than 4.729% for the conventional MPI and accounts for about 26.508% of output growth over the period 1996–2004. Most of this change is propelled by technical progress, while a fraction is driven by the adjustment in production scale, and the efficiency change has an adverse effect. Furthermore, regional inequality is also found in this empirical work, and the productivity change of the coastal region is actually stronger than that of the non-coastal region. This paper also casts some focus on the China Western Development policy. Indeed, we do not find any outstanding achievement from the policy in the sample period, except that the west region sustained its rate of productivity change after 2000. Moreover, the SEC is found to be trivial in the advanced coastal region, but plays an important role in the relatively laggard non-coastal region. The implication of the positive SEC in the non-coastal region means that China's Western Development policy will improve the scale efficiency and the TFP growth of the west region.  相似文献   

9.
China has undergone a series of agricultural policy reforms since 1978. The measurement of the productivity gains and identification of the underlying drivers thereof are important facets of policy analysis. The commonly used Total Factor Productivity (TFP) measures often lack such desirable properties as completeness or independence of the direction of the optimization (orientation). In this paper, we take a top down approach by beginning with a TFP measure and then decomposing it into three mutually exclusive, exhaustive elements. In particular, we begin with the additively complete Luenberger-Hicks-Moorsteen (LHM) TFP indicator that takes into account both input and output changes when measuring productivity and then additively decompose it into measures of technological progress, technical efficiency change, and scale efficiency change. We develop a generalized decomposition of the LHM TFP indicator which encompasses both input-oriented and output-oriented changes over time. We illustrate this additively complete LHM TFP indicator using agricultural data from 31 Chinese provinces over the period 1997–2015. Our empirical results show that Chinese agricultural productivity growth (3.05% per annum) was mainly driven by technological progress (2.35% p.a.), with relatively small contributions from scale efficiency change (0.65% p.a.) and technical efficiency change (0.04% p.a.). We also found that productivity change and the relative importance of its components varied across both time and provinces.  相似文献   

10.
全要素生产率是经济持续增长的源泉,而全要素生产率的提升不仅取决于技术进步,更依赖于资源的有效配置。基于广西壮族自治区2005—2020年各地级市面板数据,借鉴HK经典要素错配理论,构建农业生产要素错配模型,分别测算出广西“两区一带”及14个地级市农业资本、劳动力和土地资源错配的相对扭曲系数。结果表明:广西整体农业资源错配水平偏高,且不同经济区农业生产要素错配情况不尽相同;三类农业生产要素错配中农业资本要素错配地区间差异最大;观测期内广西农业生产要素错配有不同程度改善,但总体上波动趋势明显;不同地级市间农业生产要素呈现出不同偏向的错配。深化供给侧结构性改革,降低农业资源错配程度,为广西农业经济增长提供新动能,助推广西农业高质量发展。  相似文献   

11.
Theory, historiography, and empirical evidence suggest that agriculture is the key to economic development. This article examines the extent to which productivity advances in British agriculture during the period 1620–1850 were driven by technological progress. Measuring technology by patents and new book titles on agricultural methods, the results are consistent with endogenous growth theory, indicating that technological progress has played a significant role in agricultural productivity advances.  相似文献   

12.
This study estimates and analyzes provincial productivity growth in China for the period 1979–2001. The Malmquist Index approach allows us to decompose productivity growth into two components, technological progress and efficiency change. Considerable productivity growth was found for most of the data period, but it was accomplished mainly through technological progress rather than efficiency improvement. Although China's capital stock has accumulated at record speed in recent years, our findings show that TFP growth slowed down significantly during 1995–2001. The study thus raises serious questions about whether China's recent growth pattern is consistent with its comparative advantages, and whether its reliance on capital accumulation can be sustained in the long run.  相似文献   

13.
The Korean economy has entered a period of relatively sluggish growth after experiencing very dynamic and high economic growth since the 1970s. The recent growth rate has been around 3 percent, which is similar to that in many advanced countries. According to growth accounting, economic growth is possible because of input increases and productivity increases. Productivity growth is much more important than input increases for long‐term economic growth. We investigated whether there was a structural break in the Korean manufacturing industry and whether the main factor contributing to economic growth shifted from input to productivity. Using various econometric methods, we tested this question and found some interesting results. First, there was an important change in the 1990s, and the productivity trend seemed to show a big structural break at that time. Second, an input increase was the main factor contributing to economic growth before the break and productivity became more important after the break. Third, there was also a major change in the relationship between international trade and productivity.  相似文献   

14.
As part of a natural resource accounting project undertaken in Namibia, livestock accounts have been drawn up and are being used to analyse the relationship between numbers of livestock, rainfall, land degradation, and economic and policy variables. Part of the analysis concerns an investigation into trends in cattle numbers, changes in cattle biomass and the productivity of livestock in commercial areas. Cattle numbers increased from 1914 until 1960, then declined steadily to half that number. This decline was at least partly due to deliberate actions by farmers to improve herd productivity and production efficiency. Although beef production did not decline over this period, productivity is still lower than potential industry standards. Range degradation (bush encroachment) may have contributed to this curtailment. This investigation has implications for an understanding of long‐term carrying capacity, land degradation and rangeland management, and for agricultural development policies in Namibia and similar regions in southern Africa.  相似文献   

15.
将资源和环境因素同时纳入效率研究框架中,运用SBM模型以及Malmquist指数方法测度了2006—2013年14个城市的经济效率、全要素生产率(TFP),并将全要素生产率变动分解为技术效率和技术进步,实现了TFP增长的动态分解。研究结果表明,大多数城市存在效率改进空间;当考虑资源环境约束时,城市绿色TFP较低,技术进步是推动绿色TFP增长的主要源泉,而技术效率的作用并不明显。在生产效率的核算中,如果忽略资源环境因素的刚性约束,有可能导致经济增长效率被高估,由此得出的政策建议会带有一定的误导性。  相似文献   

16.
The influence of agriculture on Australia's nineteenth and twentieth century economic development is well known. While wool's contribution is rightly celebrated, the contribution of agricultural crops has received less attention. This paper focuses on one major staple, wheat, from 1861 to 1939. Both patent data and a new measure of technological progress, the cumulative number of wheat varieties tested for local adoption, are used to quantify the contribution of agricultural innovation to growth. We find innovation in this sector made an important contribution to the growth of total factor productivity over the period.  相似文献   

17.
论文根据“转换份额分析”的方法,对我国的东中西三个地区的经济增长的效应进行了分解,将技术进步和产业结构变迁从要素生产率中分解出来,度量了产业结构变迁对三个地区经济增长的贡献,并将其与技术进步的贡献相比较。实证研究表明,在改革开放以来,虽然产业结构变迁对中国经济增长的贡献一度十分显著,但是随着市场化程度的提高,产业结构变迁对经济增长的贡献呈现不断降低的趋势,逐渐让位于技术进步,即产业结构变迁所体现的市场化的力量逐步让位于技术进步的力量。  相似文献   

18.
《China Economic Review》2003,14(1):53-71
We measure agricultural productivity growth in China using alternative data sets: farm level data for Jiangsu province, national data, and provincial aggregate data for Jiangsu. For all three data sets, productivity growth was estimated to be strong during the immediate post-reform 1978–1987 period. According to the farm level data, productivity growth then slowed from 1988 to 1996. Alternatively, the national and provincial aggregate figures showed continued high productivity growth in the 1990s. These findings suggest that aggregate data may blur the true picture with regard to agricultural productivity growth in China.  相似文献   

19.
We estimate a frontier production function for Chinese industry for the period 1953–1985. Contrary to prior studies based on OLS estimates, we find that Chinese industry has been characterized by a rate of growth of technological progress between 1.8 and 3.6 percent per year. We also find that the capital-saving nature of technological progress has adversely affected Chinese productivity growth because of increases in the capital-labor ratio. The utilization of industrial resources has been quite suboptimal for much of the sample period, with industrial production well off the production frontier. These deviations from efficient resource use reflect well-known political and economic developments that disrupted economic activity. Finally, both technical efficiency and total factor productivity increased appreciably in the period 1978–1985, suggesting that the reforms have had some positive impact on industrial performance.  相似文献   

20.
Total Factor Productivity, the East Asian Miracle, and the World Production Frontier. — The post WWII growth of the East Asian Tiger states has stimulated the discussion about its determinants. Young and Krugman hold that high capital accumulation rather than gains in efficiency or technological progress has spurred growth. Nelson and Pack, however, have recently criticized the methods of measuring technological progress. Applying the nonparametric approach to frontier production function determination and the Malmquist index of total factor productivity change, the authors take up this criticism. They calculate productivity indicators for a sample of 18 American, Asian, and European countries. For the Tiger states, their results confirm that capital accumulation was the main source of growth in 1960-1973, whereas they find evidence for an increasing importance of efficiency improvements for the growth in 1973-1990.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号