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To determine the optimal manufacture and recovery policy, a hybrid system is investigated in which manufacturing and recovering operations co-exist. In this system, the constant demand of customers is fulfilled by newly manufactured products or recovered products. However, only a part of return used products from customers are recovered and the rest are disposed off due to the lower price of the recovered...
The paper provides an inventory model, by allowing defective items and completely shortage backordering and investigates the features of the inventory model by modeling the defective percentage as the crisp number, the random variable and the fuzzy number, respectively. The optimization algorithms are developed and the optimum solutions in three modelling cases are given respectively. Finally, the...
Environmental concerns on the negative impact and depletion of fossil fuels have triggered a search for alternative energy sources. Biofuels are recognised as one of the most potential renewable alternatives. In order to have a sustainable production of biofuels, a processing facility (i.e., biorefinery) that converts biomass into value-added products is needed. As the first and second generations...
Energy rebound effect theory provides supports for energy policies, which has become a hot research direction at home and abroad. In this paper, we conduct empirical research of energy rebound effect using 1978-2007 macroeconomic data at China's national and three industries level. The results show that: the average energy rebound effect of China during 1979-2006 is 58.24%, a little higher than most...
By extending Gini coefficient in the classical economics, we put forward the concept “the steel capacity competitiveness - capacity income Gini coefficient”, namely TCC, to reveal the non-equilibrium problems. Considering the comprehensive factors which influence steel industry competitiveness capacity, AHP was used to construct the evaluation model of steel industry capacity competitiveness. The...
Many physical and information goods are not "consumed" during use e.g. airplanes and computer software. These 'durable goods' have been extensively studied over the last four decades in the economics, operations, information systems, and other literatures. Due to the heterogeneous nature of durable goods and their market contexts, the recommendations from the 'durable goods' literature cannot...
Small and medium-sized enterprises play an important role in developing national economy, which is significant for self-innovation improvement to study self-innovation routing. Based on improved model of chain-like joint proposed by S.J.Kline and N.Rosenberg, the chain-like joint model of self-innovation routing is constructed, which surmountes the problem of analyzing innovation behavior from the...
This paper dealt with the application of emergy analysis to system with coal industry, and it presented new emergy index system to evaluate the characters and sustainability of circular economy utilization system with coal industry quantitatively. The Sitai Mine of DaTong coal mine Group Company in Shanxi, as a case, was analyzed by means of emergy analysis. The result shows that new emergy indices...
The Economic Manufacturing Quantity (EMQ) problems that appear in the literature assume that the demand rate is a constant and then attempt to find the optimal production cycle. The assumption may be appropriate for everyday commodities with a stable demand rate but it is not suitable for technology or fashion products because their demand rate is not constant in the product life cycle. The demand...
This paper uses stochastic frontier analysis (SFA) to study 12 international airports in the Asia-Pacific region based on data from the period 1998-2006. The SFA model uses a translog production function that is more flexible than a Cobb-Douglas one that is popularly used in the literature. As an extension of a previous study, this paper mainly discusses the implications of the parameter estimates...
When an organization utilizes modern technology in its manufacturing process, it needs to update and upgrade its facilities repetitively by efficient ways to stay with great productivity along with efficiency so. Capital Budgeting (CB) problem is one of the most important issues in decision makings about capital in the manufacturing management. Sometimes all variables and parameters are not necessarily...
Chinese government has raised an amount of investment to prevent the national economy from the financial crisis impact and to make economy increase stably and rapidly. How to maximize the utility of government investment plays an important role in the development of China. In view of the fact that government investment transmitting through the industrial chain can generate pull effect, and the fact...
Pig industry plays a very important role in adjusting agricultural structure, promoting the optimization of the agricultural resources allocation, improving the people's livelihood and increasing farmers' income. But in recent years, price of pig fluctuates violently. As a result, participants within the pig industry have frequently found themselves facing increased variable and more price risk. Sharp...
China is one of the largest producers, consumers and importers of oilseeds and edibles oils in the world. Since the 21th century, China's edibles oils industry has been growing drastically, spatial structural has been changing considerably. The characteristics of the location, movement of edibles oils sector are summarized in this paper. Empirical models are developed and estimated to identify economic...
Based on the Granger causality theory, this paper analyses the relationship of the building industry and the gross domestic product of Shaanxi province in China , using the C-D production function concerning technology advance, this paper also establishes the production function of Shaanxi building industry and offers some advices for the building industry growing style.
Based on the principle of material flow analysis and resource value accounting models in enterprise(s), through defining and tracking the value information of resource inputs, consumption, output and disposal in the production process, this paper builds a new evaluation index system of a recycling economy from the total process of resource flow (input, consumption and recycling, output). And the author...
This paper constructs a general spatial economic model integrating land rent and transport cost according to the actualities of industrial aggregation and relocation of China. Then it uses numerical simulation to gauge the significance of the model. We found that the level of rents and wages were decisive factors in the model while the effect of transportation was in two-ways. Applying this proposition...
The problem how a manager motivate producers to reduce product costs under asymmetric information is discussed on a basis of principal-agent theory. Under asymmetric information, manager can not monitor producers' effort to reduce costs; therefore, manager needs to motivate producers. The manager determines a contractual basic cost according to his own requirement and producers' self-reported cost,...
The paper studied the heterogeneity of the effect of producer services on China's industrial economic growth. Our empirical study was made on industrial panel data sets. The results of our empirical study were robust to prove that producer services in the industrial sector have a positive impact on economic growth, but there were differences between the three different factor- intensified industries...
In recent years, due to China's industrialization and urbanization process, demand for energy-intensive products continue to grow. While the industrial sector energy-intensive industry, capacity expansion contributed to the scale of China's economy continues to expand; the country also face serious challenges needed for China's economic development resources and energy supply. How to ease China's...
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