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81.
This study investigates the development of Korean digital TV transition by tracing the interaction between social and technological entities from various perspectives at different developmental stages. A socio-technical analysis examines the dynamic interactions among the stakeholders in the switchover to digital broadcasting, showing how the various actions taken by leading stakeholders affect diverse groups of stakeholders. The overall findings show that Korean digital TV transition is the outcome of a proactive strategy by industry stakeholders and the Korean government's top–down policy of supporting such a transition. It is argued that the policy of a top–down transition, which overlooks coordination among stakeholders, harms consumers and hinders effective and sustainable development. The case of Korea has implications for other countries that are pursuing digital transition strategies. 相似文献
82.
Several theories of nonprofit hospitals behavior predict that nonprofit hospitals behave in the consumer interest and thus do not exercise market power. If these theories are correct, then antitrust enforcement of hospital mergers should be restricted only to those markets in which a nonprofit hospital cannot offset anticompetitive behavior by for-profit hospitals. In this paper, we examine the relationship between price and market concentration among nonprofit hospitals in California in 1993. We find that nonprofit hospitals set higher prices in more concentrated markets. This result suggests that antitrust enforcement should challenge those mergers of nonprofit hospitals that create market power without creating offsetting efficiencies. 相似文献
83.
84.
Andrew G. Haldane Victoria Saporta Hyun Song Shin 《Journal of International Economics》2005,65(2):315-333
This paper develops a simple theoretical model to analyse recent proposals on restructuring of sovereign bonds. We find that collective action clauses (CACs) inserted in bonds resolve the inefficiencies caused by intra-creditor coordination problems providing that all parties have complete information about each other's preferences. In such a world, statutory mechanisms, such as international bankruptcy courts, are unnecessary. This is no longer the case when the benefits from reaching a restructuring agreement are private information to the debtor and its creditors due to inefficiencies caused by the debtor-creditor bargaining problem. 相似文献
85.
We consider a semiparametric cointegrating regression model, for which the disequilibrium error is further explained nonparametrically by a functional of distributions changing over time. The paper develops the statistical theories of the model. We propose an efficient econometric estimator and obtain its asymptotic distribution. A specification test for the model is also investigated. The model and methodology are applied to analyze how an aging population in the US influences the consumption level and the savings rate. We find that the impact of age distribution on the consumption level and the savings rate is consistent with the life-cycle hypothesis. 相似文献
86.
Experts have more difficulty identifying reverse salients in R&D because of increasing technological complexity and a shortened technology lifecycle. As an alternative, we suggest a new and systematic method of identifying and forecasting reverse salients using QFD (quality function deployment), bibliometric analysis, and TIA (trend impact analysis). QFD allows users to systematically identify and prioritize reverse salients. An integration of QFD, bibliometric analysis, and TIA makes it possible to specify key performance indicators of reverse salient in order to identify the performance gap between current and market-required performance and to make a probabilistic forecast about when reverse salients will be corrected. Our method will help managers identify a top priority reverse salient, forecast its future, and thus make better R&D decisions with regard to market requirements. A carbon nanotube biosensor technology is used as an example. 相似文献
87.
We develop a simple model that provides a new rationale for why a monopolist should bundle its product with a warranty even when all parties are risk neutral. In our model, a risk‐neutral monopolist faces two types of risk‐neutral consumers—low‐risk users that are unlikely to cause product failure and high‐risk users that are more likely to cause product failure. We find that when the firm fails to provide a warranty, a low‐risk user acquires a strictly positive rent by pretending to be a high‐risk user and receiving a price discount. By imposing a warranty, however, the monopolist can increase the price to high‐risk users, which in turn removes the incentive for a low‐risk user to pretend to be a high‐risk user, and the firm successfully extracts rent from the low‐risk user. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
88.
In this paper, we develop methods for assessing the sensitivity of capital flows to global financial conditions. We use these methods to assess the impact of macroprudential policies introduced by South Korea in 2010. Relative to a comparison group of countries, we find that the sensitivity of capital flows into South Korea to global conditions decreased in the period following the introduction of macroprudential policies. 相似文献
89.
We estimate tracking errors from 26 exchange-traded funds (ETFs) utilizing three different methods and test their relative performance using Jensen's model. We find that tracking errors are significantly different from zero and display persistence. Based on Jensen's alpha, risk adjusted returns are significantly inferior to benchmark returns for all ETFs with two exceptions at conventional significance levels revealing that passive investment strategy does not outperform market returns. We then examine the degree to which frequently used factors such as expense ratio, dividends, exchange rate and spreads of trading prices may be underlying sources of tracking errors causing this underperformance. We find that the change in the exchange rate is a significant source of tracking errors. Our serial correlation test, runs test and panel regression analysis reveal that Asian markets display relatively greater persistence and therefore are less efficient in disseminating information and noisier in filtering the information contained in returns. 相似文献
90.
International environmental agreements under uncertainty 总被引:4,自引:0,他引:4
Negotiations toward international environmental agreements takeplace under uncertainty. We address the process of coalitionformation in this context. Coalitions are more likely to formamong countries which are similar. Since countries are morelikely to be facing similar conditions ex ante rather than expost, (i.e. before the resolution of uncertainty rather thanafter it), the possibility of coalition formation is enhancedthe sooner the negotiations take place. The social value ofbetter scientific information may well be negative in such circumstances. 相似文献