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1.
Four types of variables that affect the diffusion of home energy conservation measures are assessed. These variables are the information possessed by households, household attitudes, the economic and demographic characteristics of households, and the attributes of conservation measures. A causal model of behavior change is presented based on Fishbein's theory of reasoned action. The model is tested using panel data on 225 homeowners from Decatur, Illinois and two conservation practices: employing winter night-time thermostat setbacks and adding attic insulation. The results illustrate the importance of all four change mechanisms. Many nonadopters have erroneous information about the financial and other benefits of the two practices. The elderly and the poor are particularly ill-informed. Negative attitudes are closely related to discomfort (for night-time setback) and expense (for attic insulation). As expected, barriers and incentives differ across population subgroups and innovations.  相似文献   

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In this article, a model of technology price estimation is developed. The process of trade in technology is seen as resulting in a partial transfer of the market in which the seller of the technology had previously sold his product to the buyer of the technology. Profit decrease of the seller because of market cuts is taken as the basis for the pricing of technology. The random nature of the useful lifetime of the technology is taken into account, and the influence of seller-firm characteristics on the technology price is analyzed.  相似文献   

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Direct Broadcast Satellites, which transmit television programs directly to the viewer's home, present several policy issues that will have to be resolved during the next few years. Some of these issues transcend DBS, hence they must be resolved in a larger framework. Those that exist essentially within the framework of DBS include issues at the program producer's end, issues at the viewer's end, and technology issues. These latter are particularly important because inappropriate or unwise policy choices made now may nullify the benefits promised by improved technology.  相似文献   

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Several major aspects of the metric conversion process occurring in the United States are examined by comparing a group of sample companies that have converted to metric production with a control group of nonconverting companies. Data files were used to relate several explanatory variables to the degree or percentage of metric production for individual companies and to compare the financial characteristics of converting and nonconverting companies. Smaller companies, on average, did more metric work for a single customer than large firms. In addition, as the percentage of metric work performed by companies increased, their dependence on a single buyer of their products tended to decrease. The analysis of the conversion process as a function of financial variables concluded that the conversion process was positively and significantly related to 1) long-term profitability, 2) liquidity, and 3) the size of firms as represented by the number of employees. Additional documentation is needed on the metric conversion process in distinct industries by firm size to more fully understand whether the process of technological diffusion is translated from large to small firms or begins in small firms themselves.  相似文献   

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The known relationship between linear regression and weighted averages are examined more extensively in the case of forecasting by univariate regression. Several surprising results accrue from the analysis, including the fact that it is possible for a given observation to have no bearing whatsoever on the forecast.  相似文献   

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This work presents a futuristic scenario of science and technology in India in relation to development and social change. Organizational, financial, developmental, etc. trends in science and technology have been identified as consequences of history, culture and national policy alternatives conceived in the past and perceived for the future. The present course of action is considered unlikely to bridge the existing gap between science and society in India. The findings are relevant for S&T policy and planning in the developing countries.  相似文献   

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It is by now a commonplace to say that today the world is in the midst of a revolution as profound as any we have ever experienced. It is, however, much less of a commonplace to specify precisely of what this revolution consists. The contention of this article is that the revolution is more than a mere shift in our industrial or technological base. Fundamentally, it is a change in underlying mental attitudes—how we conceive of the world. It is thus a shift in our values but at the same time much more basic than this alone.This article describes the nature of the change that is occuring in mental attitudes. However, it does not do so in a traditional way. Primarily, it does it by means of a fable. The reason is that the shift we are experiencing is also in part a shift in our aesthetic vision, that is, in the styles of discourse that we use to describe reality. In short, different conceptions of the world require different stylistic forms. The full nuances of a new era can not be captured by the forms of the past.  相似文献   

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The use of growth curves in technological forecasting usually employs an equal weighting of all data points in the time series. This paper considers the benefits of weighting recent information more heavily through the utilization of discounted least squares. The method is used to model the growth of the percentage of households with CATV; discounting gives better results for short-term forecasting.  相似文献   

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The hypothesis that language and DNA represent two stages of the same evolutionary path is briefly evaluated. Volterra equations, so useful in describing the dynamics of competing systems are, in fact, equally efficient in describing social behavior, as shown in numerous examples. The emergence of language first, and science later, interpreted as a metalanguage, are attributed to a “hypercyclization” of basic competing utterances in analogy of hypercyclization of quasi-species of replicating molecules in Manfred Eigen's theory of DNA development and evolution.  相似文献   

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The results of a Delphi study on the future of the Indian tea industry are presented. Most of the information obtained for the study helps in formulating and validating a system dynamics model. The model also considers the occurrence of new events as visualized by the panelists. It is shown, however, that the policies recommended by the panelists yield poor industry behavior when Delphi-predicted new events operate in the environment. This may be due to lack of comprehension of the complexity of interaction between policies proposed and new events visualized by the panelists. On the basis of this investigation, it is proposed that Delphi and system dynamics studies should complement each other in arriving at viable policy decisions.  相似文献   

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In an attempt to forecast the shape of economics in the year 2001, a Delphi study was undertaken, involving over 200 professional economists from 18 different countries. The end result was a list of 28 breakthroughs thought likely to occur in the next 20 years. The paper describes each breakthrough in detail, the process by which consensus and dissent were communicated, and the method used to select the panel of experts surveyed. Although the overall outcome of the study can be interpreted from several perspectives, one inescapable impression that emerges is that the liberal tradition in economics is latent but not dead, or equivalently, that the present conservative drift in the discipline is likely to be shortlived.  相似文献   

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Recession is a Damocles Sword hanging on Western societies, and by reflex on the developing world. The analysis on causes, effects, and possible duration have led to highly controversial results. This article uses an original approach to model the process of long economic cycles, where only physical indicators are taken into account, like number of objects, weights, calories, and time with complete disregard of money, capital, and fiscal measures. From this particular angle economic behavior shows simple, stable, and predictable features, which may greatly help to construct an efficient economic theory. Concerning the recession proper, the model bring fresh support to the Schumpeter view, with time bunching of basic innovations, stable time constants to market saturation, and long waiting for the next bunch to rekindle the boom. Because recession is linked to societal time constants, sweeping solutions appear improbable but a self-consistent patchwork is suggested.  相似文献   

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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   

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Mathematical models are used widely in automotive transportation policy analysis. The limitations, benefits, and uses of a case-study model, the Sweeney Passenger Car Gasoline Demand Model, were examined. It was found that because of users' lack of awareness of the model's characteristics, the model has sometimes been misused, although the misuse appears to have had no major negative policy impact. However, the model use has had some impact on major automotive/energy policy decisions of the 1970s. Involvement by the model author in applications of the model contributed to effective use of the model in the policy process.  相似文献   

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A theory of continuous structural changes in countries and a theory of discontinuous structural changes are used to predict the consequences of increasing scarcity on countries with some affluence. The prognosis is disheartening. According to the theory of continuous change, increasing scarcity will directly or indirectly increase the inequality, centralization, disintegration, disturbances, repression, and both national and international conflict and will directly or indirectly decrease socioeconomic development, legitimacy, and democracy. These changes will be unpopular and create pressures for discontinuous change to prevent them. Furthermore, increasing scarcity will increase the desire for structural change and weaken the regime's capacity to manage the situation. Thus the pressure for structural change will be strong. Scarcity also interferes with the peaceful restructuring of democracies in their efforts to cope with the crisis. When these theories are used in predicting the future of modern countries under conditions of prolonged scarcity, they suggest that elitist democracies and elitist nondemocracies are likely to be restructured into egalitarian nondemocracies. Egalitarian democracies will survive as such if they are blessed with exceptional leadership. Otherwise they also might be restructured in the direction of egalitarian nondemocracy.  相似文献   

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This article offers a forecast of the effects that advances in office automation technology will have on clerical employment in the banking and insurance industries for the period 1985–2000. A new forecasting approach, intended to account more directly for technological change, was developed for the study and is described. Clerical employment in both industries is estimated to peak about 1990 and decline rapidly during the following decade. Under the most conservative assumptions, absolute reductions in clerical employment of 22% in insurance and 10% in banking are expected by 2000. As a preliminary validation of the method, these results are compared to employment forecasts generated independently by executives in the two industries and to the results of other recent employment forecasts.  相似文献   

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