共查询到20条相似文献,搜索用时 0 毫秒
1.
2.
James P. Gander 《Technological Forecasting and Social Change》1984,25(4):329-345
This paper models cooperative R & D involving the university, the government, and the firm, using a linear programming format to determine the optimal cooperative structure or, “Who does what?” Both prime and dual are discussed. Sensitivity and simulation techniques are discussed as analytical tools to evaluate the effect of uncertainty and returns to scale on the optimal mix or structure of cooperative R & D. The value of the approach is both heuristic and analytical. Some problems and limitations of the approach are discussed briefly. 相似文献
3.
James A. Xander Medhi Iranmanesh Douglas McNiel Kenneth R. White 《Technological Forecasting and Social Change》1984,25(4):309-327
Political interest in developing the capability to produce gaseous fuel from coal in the United States has been cyclical in nature, depending primarily upon the security of the international market for oil and public attitudes toward nuclear power. Interest in coal gasification technology by private investors, however, depends primarily on the economic and technological considerations analyzed in this paper. A cost forecasting model is developed with the capability to take into account future economic and technological uncertainties associated with producing high BTU gas (a substitute for natural gas) from coal. The cost forecasting model incorporates probabilistic information on key economic and technological parameters subject to future uncertainty and simulates, by Monte Carlo methods, the costs which private investors would incur over the life of a commercial size coal gasification plant. The results suggest it is highly unlikely that the coal gasification process could produce high BTU gas more cheaply than the price at which natural gas is likely to be available.The cost forecasting model is also modified to compare the cost per kilowatt–hour of generated electricity when fueling a 1,000 Mw power plant with oil versus high BTU gas from coal. Again, based upon the costs to private investors, the simulation results indicate a very low probability that high BTU gas from coal would prove the least costly fuel for generating electricity.The implied economic infeasibility for private investment in coal gasification does not necessarily provide a basis for public policy to abandon the technology. Public policy recommendations must consider social costs as well as private costs. Possibly the greatest social cost associated with abandoning coal gasification is the risk of a significant energy supply interruption. A diversified national energy policy including coal gasification may in fact be less costly if relevant social costs are included in the calculations. Results from the cost forecasting model indicate the size and type of public subsidies that may be necessary to support a diversified energy industry which would include coal gasification. 相似文献
4.
Rajendra K. Srivastava Vijay Mahajan Sridhar N. Ramaswami Joseph Cherian 《Technological Forecasting and Social Change》1985,28(4):325-333
This article develops a diffusion model that incorporates potential adopters' perceptions of the relevant innovation attributes in explaining the rate of adoption of an innovation. Data from 14 investment alternatives currently available to consumers are used to develop a multi-attribute diffusion model for forecasting the acceptance of a potential investment alternative. Limitations and further extensions of the proposed model are also discussed. 相似文献
5.
James P. Gander 《Technological Forecasting and Social Change》1985,28(2):159-172
Government involvement in the innovation process, both direct and indirect, is introduced into a standard innovation time-cost trade-off model. Different forms of involvement are treated and each form entails cooperation between the firm and the government. The optimal development time (or project completion date) is determined and analyzed parametrically. This analysis produced five hypotheses concerning the effect of government involvement on the timing of innovations. Selected empirical applications (or tests) of the hypotheses are presented and then concluding remarks are made. 相似文献
6.
Ilan Salomon Lecturer Meira Salomon Director 《Technological Forecasting and Social Change》1984,25(1):15-28
Available telecommunication technology enables the substitution of commuting by “telecommuting”, or working at home, for a wide range of white collar occupations. Research on the potential of this phenomenon along with some ongoing experiments point at an array of social and personal benefits that may be realized by this working arrangement. An assessment of the possible implications of work-at-home on the individual employee indicate that the burden on him or her may be greater than the benefits accrued and, therefore, the journey to work may be a more desirable act than traditionally perceived by transportation planners. This paper focuses on two aspects of the work-at-home arrangement. Previous research on the sociology of work as well as preliminary empirical results indicate that 1) social interaction at work and 2) the need to separate home and work roles are important elements for the individual worker. The fact that work-at-home will affect these attributes, is likely to discourage wide-scale transition to this arrangement, despite the availability of the technology. Most research published to date on the subject is qualitative in nature, as only little empirical evidence is available. The objective of this paper is to stress, based on a wide literature review, the need for a thorough behavioral evaluation of the available technology to provide a sound basis for decision making on implementation of the technology. 相似文献
7.
There is considerable evidence that the density of basic innovations is peaked at definite periods with intervals of about 40–60 years. This has been used as support for the behavior of economic cycles as postulated by Kontradieff and amplified by Schumpeter. Recently some economists have used this model to forecast economic recovery in the middle or late 1980s.This paper points out that the shape of the clusters of innovation or inventions are different and sharper than those of economic depression or economic recovery. The transfer of knowledge from basic inventions to industrial innovations shortens as one moves from the 18th to the 20th century, and some probable explanations for this are offered. The importance of discoveries and limited discoveries to the process of invention and innovation is discussed. Also shown is that discoveries reveal cluster phenomena which are functionally related to the clusters of invention and innovation. 相似文献
8.
A Theory of Action is formulated based on the intentionality of actions. The transformation rules from the new theory to system dynamics were developed and the methodology was then applied to certain problems of future time-use. The modeling approach used is holistic and it requires a meta-system to system dynamics in order to produce quantitative results. 相似文献
9.
10.
11.
Robert U. Ayres 《Technological Forecasting and Social Change》1985,28(2):141-157
The large gap between the best available technology and technology in use, especially in the less developed world, is primarily due to social and cultural factors that can only be changed by means of deliberately applied social technologies. Thus, conventional strategies for global population stabilization, economic development, and environmental improvement often put the cart before the horse. 相似文献
12.
Technological substitution in the United States pulp and paper industry: The sulfate pulping process
This paper presents an econometric analysis of the diffusion of the sulfate pulping process throughout the U.S. pulp and paper industry. A dynamic equilibrium, Gompertz diffusion function is employed to derive a multivariate estimation model which incorporates more information than the traditional approach of estimating the growth rate function alone. The empirical results suggest that the econometric approach provides a useful integration of the technological diffusion process and the comparative static theory of demand. The sulfate pulping process is projected to continue capturing market share at a relatively rapid rate, and could account for 90% or more of total U.S. woodpulp production by the year 2000. 相似文献
13.
14.
15.
Robert Giese Philip C. Jones Brent G. Kroetch 《Technological Forecasting and Social Change》1983,24(2):137-152
In this paper, we develop a methodology for approximating the market penetration potential for electric vehicles (EVs). The model is dynamic in nature and explicitly accounts for the competitive effects of conventional vehicles. Unlike many previous models, it does not require an estimation of the time required to achieve a 50% market share. Instead, the model allows one to endogenously determine the rate of market penetration, as well as the ceiling level. We note that some electric vehicle characteristics limit marketability to consumers unaffected by the disadvantages associated with operating EVs. These characteristics are accounted for in the model by the use of a substitution index. The addition of the substitution index allows one to explicitly account for variations in prices, climate, and geographic contour, all of which affect market potential. Electric vehicles are expected to result in positive social benefits by way of reduced pollution emissions and because of the concomitant decrease in the consumption of gasoline that market adoption would bring about. However, the social benefits will not be captured in the market and will not, therefore, encourage the use of these alternatives to conventional vehicles. This means that the rate of adoption of electric vehicles will be slower than is socially optimal, which is a potential argument for government subsidies for electric vehicles. In this paper, we explore a method for analyzing the benefits associated with the adoption of electric vehicles. 相似文献
16.
Vijay Mahajan Herman W. Lay Chair Professor of Marketing 《Technological Forecasting and Social Change》1985,28(1):13-27
In order to assess the impact of patent infringement on the growth of a new product, a model is developed through the intervention model development processes of Box-Jenkins and Box-Tiao. Physical interpretations of model parameters and determination of associated damages suggest that the model can provide a sound basis for analyzing patent infringement disputes. 相似文献
17.
18.
19.