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51.
Internet Protocol Television (IPTV), the convergence services of television and Internet, is being rapidly developed around the world. The advent of digital technologies has changed the convergence market dramatically with the wide diffusion of the convergent services. Using the Technology Acceptance Model as a conceptual framework and method of logistic regression, this research analyzes the demand for IPTV by drawing data from 452 consumers. Individuals' responses to questions about whether they accept IPTV are collected and combined with observations of their socio-economic status and intrinsic/extrinsic factors modified from the Technology Acceptance Model. Results of logistic regression show two variables (intrinsic and extrinsic factors) that seem to explain what influences consumer behavior towards adopting IPTV. Overall, the logistic regression model explains over 50% of the variance in the IPTV adoption. The variances shed light on the multi-open platform environment that IPTV will forge. 相似文献
52.
We propose an optimal filter to transform the Conference Board Composite Leading Index (CLI) into recession probabilities in the US economy. We also analyse the CLI's accuracy at anticipating US output growth. We compare the predictive performance of linear, VAR extensions of smooth transition regression and switching regimes, probit, non‐parametric models and conclude that a combination of the switching regimes and non‐parametric forecasts is the best strategy at predicting both the NBER business cycle schedule and GDP growth. This confirms the usefulness of CLI, even in a real‐time analysis. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
53.
An instrumental variable approach for panel unit root tests under cross-sectional dependence 总被引:1,自引:0,他引:1
For dynamic panel models with cross-sectional dependence, several unit root tests are constructed using a Huber-type instrument, whose null asymptotics are standard Gaussian and do not depend on nuisance parameters. A Monte-Carlo simulation shows that the proposed tests have better sizes and comparable powers relative to other two existing tests developed for cross-sectionally dependent dynamic panel models. 相似文献
54.
Summary A decision maker faces a known prior distribution over payoff relevant states. We compare the expected utility of this individual under two scenarios. In the first, the decision maker makes a choice without further information. In the second, the decision maker has access to an experiment before choosing an action. However, the decision maker does not know the true joint distribution over states and messages. The value of the experiment as measured by the difference in the two utility levels can be negative as well as positive. We give a condition which is necessary and sufficient for the experiment to be valuable in our sense, for any decision problem.An earlier version of this paper was circulated under the title Noisy Bayes Updating and the Value of Information. We have gained from the comments of Stephen Coate, John Geanakoplos, Larry Samuelson, Timothy Van Zandt and seminar participants at Harvard Business School, Princeton, Boston University, the international conference on game theory at Stony Brook 1992 and the Winter meeting of the Econometric Society at Anaheim 1993. The first author received support for this project from NSF grant #SES-9308515 and a University of Pennsylvania Research Foundation Grant. 相似文献
55.
Diego Martinez‐Lopez 《International Review of Applied Economics》2006,20(4):411-423
Public investment constitutes one of the main instruments of regional policies. The existence of a direct link between infrastructure and regional income per capita is usually accepted. Literature also describes a positive effect of public investment on private capital accumulation. This paper seeks to provide new empirical evidence on this latter relationship for the case of Spanish regions over the period 1965–1997 using panel data methodology. The results show a positive effect of productive and social public investment (especially in education) on private investment. The spillover effects generated by the productive infrastructures located in other regions do not seem to encourage the private investment in neighbouring regions. Public consumption and interest rate exert a negative influence on private capital accumulation. These results are robust to changes in the econometric specification. 相似文献
56.
Project Management Characteristics and New Product Survival 总被引:6,自引:0,他引:6
R. Jeffrey Thieme X. Michael Song Geon-Cheol Shin 《Journal of Product Innovation Management》2003,20(2):104-119
We develop a conceptual model of new product development (NPD) based on seminal and review articles in order to answer the question, “What project management characteristics will foster the development of new products that are more likely to survive in the marketplace?” Our model adopts Ruekert and Walker's theoretical framework of situational dimensions, structural/process dimensions, and outcome dimensions as an underlying structure. We conceptualize their situational dimensions more narrowly as project management dimensions, allowing us to examine more specifically how project management practices affect the NPD process. In our model, project management dimensions include project manager style, project manager skills, and senior management support. Structural/process dimensions include cross‐functional integration and planning proficiency. Outcome dimensions include process proficiency and new product survival. Our empirical analysis finds support for 20 hypotheses, a reversal of one hypothesis, and nonsignificant results for one hypothesis. These results show that projects are best led by managers with strong technical, marketing, and management skills, using a participative style and enjoying early and continuous support from senior management. These project management dimensions promote cross‐functional integration and planning, which are important to process proficiency and new product survival. Our study suggests two broad conclusions. First, it confirms the links in the extant literature between situational (project management) dimensions, structural/process dimensions, and outcome dimensions in NPD. Second, firms can improve cross‐functional integration and planning through various project management practices. Generally, we find that firms interested in improving both proficiency in their development process and the survival rate of new products should take steps to promote cross‐functional integration and to improve their planning processes. While the linkage between cross‐functional integration and NPD outcomes is well established in the literature, the impact of the planning process on NPD outcomes is a research area ripe with opportunity. Our study highlights three aspects of planning that contribute to NPD outcomes. Plans should be detailed, team members should participate actively in the planning process, and teams should be given flexibility and autonomy to respond to unanticipated issues as they appear. 相似文献
57.
Enterprise risk management (ERM) is a process that manages all risks in an integrated, holistic fashion by controlling and coordinating any offsetting risks across the enterprise. This research investigates whether the adoption of the ERM approach affects firms' cost of equity capital. We restrict our analysis to the U.S. insurance industry to control for unobservable differences in business models and risk exposures across industries. We simultaneously model firms' adoption of ERM and the effect of ERM on the cost of capital. We find that ERM adoption significantly reduces firm's cost of capital. Our results suggest that cost of capital benefits are one answer to the question how ERM can create value. 相似文献
58.
59.
We study pricing strategies of competing firms selling heterogeneous products to consumers. Goods are substitutes and there are network externalities between neighboring consumers. In equilibrium, firms price discriminate based on the network positions and charge lower prices to more central consumers. We also show that, under some conditions, firms' equilibrium profits decrease when either the network becomes denser or network effects increase. In contrast, consumers always benefit from being more connected to each other. We determine the optimal network structure and compare uniform pricing and discriminatory pricing from the perspectives of firms and consumers. 相似文献
60.
This paper examines whether Internet access positively affects credit card balances. To that end, we compare the 2010 and 2013 Surveys of Consumer Finances, analyze the consistency of the results over time, and provide the rationale for any resulting differences. Using the censored techniques, our results indicate that Internet access has a positive effect on credit card balances, which suggests that consumers with Internet access are prone to higher balances compared to those without. The probability of carrying positive balances was larger in 2010 compared to 2013. Overall, the results suggest that, while the financial crisis might have contributed to higher balances in 2010, the economic recovery afterward seems to have eased the burden of credit card debt. 相似文献