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31.
We study a setting with many countries; in each country there are firms that can sell in the domestic as well as foreign markets. Countries can sign bilateral free‐trade agreements that lower import tariffs and thereby facilitate trade. We allow a country to sign any number of bilateral free‐trade agreements. A profile of free‐trade agreements defines the trading regime. Our principal finding is that, in symmetric settings, bilateralism is consistent with global free trade. We also explore the effects of asymmetries across countries and political economy considerations on the incentives to form trade agreements. 相似文献
32.
Sanjeev Gupta Benedict Clements Erwin R. Tiongson 《Review of Development Economics》2004,8(3):379-390
The paper examines the cyclical properties of food aid with respect to food availability in recipient countries, with a view to assessing its impact on consumption in some 150 developing countries and transition economies, covering 1970 to 2000. The results show that global food aid has been allocated to countries most in need. Food aid has also been countercyclical within countries with the greatest need. However, for most countries, food aid is not countercyclical. The amount of food aid provided is also insufficient to mitigate contemporaneous shortfalls in consumption. 相似文献
33.
Manfred Neidner Guy Clausse Wolf Schäfer Torsten Tewes Sanjeev Gupta Paulgeorg Juhl J. P. Agarwal Heinz D. Kurz 《Review of World Economics》1981,117(4):778-802
Ohne Zusammenfassung 相似文献
34.
A strategic analysis of network reliability 总被引:1,自引:0,他引:1
Abstract. We consider a non-cooperative model of information networks where communication is costly and not fully reliable. We examine
the nature of Nash networks and efficient networks.
We find that if the society is large, and link formation costs are moderate, Nash networks as well as efficient networks will
be ‘super-connected’ i.e. every link is redundant in the sense that the network remains connected even after the link is deleted.
This contrasts with the properties of a deterministic model of information decay, where Nash networks typically involve unique
paths between agents. We also find that if costs are very low or very high, or if links are highly reliable then there is
virtually no conflict between efficiency and stability. However, for intermediate values of costs and link reliability, Nash
networks may be underconnected relative to the social optimum. 相似文献
35.
Conformism and diversity under social learning 总被引:1,自引:0,他引:1
Summary. When there are competing technologies or products with unknown payoffs an important question is which technology will prevail
and whether technologies with different payoffs can coexist in the long run. In this paper, we use a social learning model
with local interactions to study this question. We show that the adoption of technologies as well as the prospects of conformism/diversity
depend crucially on the nature of interaction between individuals and the heterogeneity of preferences in a society.
Received: May 10, 1999; revised version: February 4, 2000 相似文献
36.
In R&;D organizations of high tech firms, multiple R&;D projects are executed concurrently and timeliness of project completion - i.e., developing the right products at the right times - is a matter of serious concern. Given that the priority of R&;D projects and the interdependencies between the projects in a high tech firm change dynamically, high tech R&;D project management is a complex and challenging endeavor. To improve the understanding and management of high tech R&;D projects, this paper reports the findings of a field study where we, first, develop and empirically estimate a model that relates project priority over time with the generative mechanisms of market pull and technical challenge associated with R&;D projects. Next, we develop and demonstrate the application of a process model within which the time-varying project priority model is embedded. The process model makes it possible to allocate fixed resources among competing projects with time-varying interdependencies, thereby improving the timeliness of project completion. This research was conducted in collaboration with a major U.S. high tech firm. The corporate R&;D center of the firm served as the research setting for the field study. We present an application of the process model to delineate the evolution of the R&;D organization with the merger of its (technology driven) parent firm with another (market driven) high tech manufacturing firm. The application of the process model generates theoretical insights that are used to develop testable propositions. Implications of the study findings and directions for future research are discussed. 相似文献
37.
A cluster driven log-volatility factor model: a deepening on the source of the volatility clustering
We introduce a new factor model for log volatilities that considers contributions, and performs dimensionality reduction, at a global level through the market, and at a local level through clusters and their interactions. We do not assume a-priori the number of clusters in the data, instead using the Directed Bubble Hierarchical Tree algorithm to fix the number of factors. We use the factor model to study how the log volatility contributes to volatility clustering, quantifying the strength of the volatility clustering using a new nonparametric integrated proxy. Indeed finding a link between volatility and volatility clustering, we find that a global analysis reveals that only the market contributes to the volatility clustering. A local analysis reveals that for some clusters, the cluster itself contributes statistically to the volatility clustering effect. This is significantly advantageous over other factor models, since it offers a way of selecting factors in a statistical way, whilst also keeping economically relevant factors. Finally, we show that the log volatility factor model explains a similar amount of memory to a principal components analysis factor model and an exploratory factor model. 相似文献
38.
Sanjeev Goyal 《Review of Economic Design》1994,1(1):79-102
I study a sequential process in which different pairs of traders bargain over the terms of trade of an indivisible good. I
consider bothone-sided andtwo-sided offers based bargaining at the stage-game level. The sequential process is modelled as an infinite stage-game of incomplete
information and the paper studies the efficiency properties of its equilibria. It is shown: With one-sided offers, all equilibria
are long-run ex post efficient; with two-sided offers, examples of equilibria are constructed with widely varying efficiency
properties.
This paper is based on Chapter 1 of my Ph.D thesis. 相似文献
39.
This study presents a general approach for selecting comparable firms in market-based research and equity valuation. Guided by valuation theory, we develop a "warranted multiple" for each firm, and identify peer firms as those having the closest warranted multiple. We test this approach by examining the efficacy of the selected comparable firms in predicting future (one- to three-year-ahead) enterprise-value-to-sales and price-to-book ratios. Our tests encompass the general universe of stocks as well as a sub-population of so-called "new economy" stocks. We conclude that comparable firms selected in this manner offer sharp improvements over comparable firms selected on the basis of other techniques. 相似文献
40.
Emanuele Baldacci Benedict Clements Sanjeev Gupta Carlos Mulas-Granados 《Review of Development Economics》2006,10(4):612-631
This paper investigates the political and economic determinants of successful fiscal adjustment in 25 emerging market economies from 1980 to 2001. The results show that large and back‐loaded fiscal adjustments have the highest likelihood of success. Fiscal consolidations based on expenditure cuts increase the probability of approaching and achieving fiscal sustainability but are insufficient to maintain it unless accompanied by revenue reforms. Adjustment episodes launched in countries where governments enjoy a parliamentary majority and do not face imminent elections, are found to be more successful. Fiscal consolidations undertaken under IMF‐supported programs also have a higher probability of success. 相似文献