价值工程在加氢反应器筒节锻造中的应用

运用价值工程原理, 改进曾获国家科技进步一等奖的锻焊结构加氢反应器的筒节锻造工艺, 创新后的筒节锻造工艺又应用在其他两台类似的加氢反应器上,总计降低生产成本１７００ 余万元。     

依靠技术创新促进造船模式的转换

本文认为转换造船模式是船厂技术创新的主旋律,转换造模式需要进行体系技术创新,并提出了推行现代生产设计、实施托盘管理、建立团队组织、深化相关新技术的应用、加强职工培训等建议.     

The effects of real exchange rate depreciation on stochastic producer prices in low-income agriculture

This paper considers the effects of real exchange rate depreciation on stochastic agricultural producer prices in low-income agriculture. Conventional wisdom, that real depreciation achieved through nominal currency devaluation stimulates tradables production, does not universally hold in the presence of stochastic prices. In fact, real depreciation is only stimulative in two cases–importables that remain importable and nontradables that become exportable. GARCH estimation of time-series price data on several commodities from Madagascar support the hypotheses generated by the analytical model.     

Off‐farm work,technical efficiency,and rice production risk in Taiwan

This article investigates the differences in yield production, production efficiency, and yield risk for farmers both with and without off‐farm work. Using a nationwide survey of rice farmers in Taiwan, we estimate two stochastic production frontier models that accommodate technical inefficiency and production risk simultaneously for farmers both with and without off‐farm work. The stochastic dominance criterion is then applied to compare the differences in the distributions of the estimated technical efficiency and yield risk between groups. The empirical results indicate that these two groups of farmers use resources in different ways, and off‐farm work is not necessarily associated with lower technical efficiency. For farmers in the lower percentiles of the efficiency distribution, those with off‐farm work are more efficient than their counterparts without off‐farm work. In addition, farmers with off‐farm work face higher production risk and this result is robust for the entire distribution.     

Policies for the development of knowledge-intensive local production systems

Starting from the empirical literature concerning the analysisof industrial districts, this paper focuses on the importanceof industrial policies in supporting the development and consolidationof local production systems. Here, institutions and marketsare envisaged as equally important for long-term performance.The objective is to propose a conceptual framework for the formulationof public policies that places organisational learning at thecentre of interest.     

国际分割生产条件下我国的出口增长问题

自2009年开始中国出口总额一直保持世界第一的排名。我国的出口以工业制成品为主,而制成品生产的主要特征是国际分割生产。本文对国际分割生产条件下我国出口增长现状和存在的问题进行深入分析,提出了通过提升我国出口质量,以促进我国出口增长的对策。认为我国亟需转变出口增长模式,提高出口产品的技术含量和质量,获得国际分割生产的技术效应,促进出口产业链和产业的升级。     

Expansion of EU's Free Trade Agreements into Asian Countries and Its Impact on the Chinese Economy

Abstract

This study investigates the macroeconomic impact of EU's free trade agreements with Asian countries and the US on the Chinese economy. In addition we examine the impacts on the Chinese industry output based on the framework of production network and production fragmentation. The expansion of the EU's economic reach toward ASEAN and Japan through free trade agreement will generate a positive macroeconomic effect on negotiation participants while it generates a negative effect on the Chinese economy: Some portions of existing trade and foreign direct investment will be shifted to partner countries from non-partner countries. However, according to a sectorial analysis, EU's free trade agreements with three countries result in a positive impact on China's electronics and machinery industry, because China's industry is linked to the production fragmentation and foreign affiliates play a crucial role.     

World War II prime defence contractors: Were they favoured?

Between 1940 and 1944 the US government placed $175.066 billion of prime defence contracts with US corporations. Two-thirds of these awards went to only 100 companies and 20% to only five companies leading to charges that the prime contractors were favoured. This article examines the common stock returns of World War II prime contractors relative to broad market indices and to the returns on the non-prime contractors in the same industry. The analysis begins in 1938 with the Anschluss and ends with the 1950 outbreak of the Korean War. Little evidence is found to support the charges.     

MODELING UNCERTAIN FORECAST ACCURACY IN SUPPLY CHAINS WITH POSTPONEMENT

We examine a situation where a manufacturer operates in a two‐mode production environment. The first mode could involve overseas vendors and manufacturing facilities. If additional units are later required, the company must use its second mode—more expensive last‐minute domestic vendors and manufacturing sites. We develop a new methodology for analyzing the impact of forecast accuracy on the decision to postpone production. We examine the interaction of forecast accuracy, shortage vs. holding costs, transportation costs and the cost of postponing production in the supply chain of a single product facing uncertain demand. Our model can be used to analyze the cost of important changes, such as increasing forecast accuracy, reducing the cost of backorders, lowering the cost of delaying production, or lowering transportation costs. Our model allows a firm to understand its overall cost structure so that it can accurately evaluate the impact of improved forecast accuracy and lowered costs in the context of postponement.     

An extension of the multi-output state-contingent production model

This paper presents new developments on the state-contingent theory of production under uncertainty with stochastic prices. Our main purpose is to generalize the usual finite discrete state-contingent production model to infinite dimensional, possibly uncountable spaces which look like a more realistic framework. Usual duality results are established in this general context, shedding some light on the links between risk-neutral probabilities and shadow prices. A direct generalized production risk premium is defined and is shown to be independent of the inputs level when the technology is output translation homothetic. In such a case, the technology exhibits constant absolute riskiness. We thank Bob Chambers for his helpful comments.