Foreign-exchange intervention strategies and market expectations: insights from Japan

This study extends the traditional set of central bank's interventions to include official announcements in order to provide empirical evidence on two pivotal questions: (i) are FX authorities able to influence market expectations with different instruments? (ii) how should interventions be designed to have the greatest impact? Using Japanese data over 1992–2004 and an event-study approach, we estimate the effect of different strategies on the USD/JPY exchange-rate risk-neutral density. Overall, transparent policies (public and oral interventions) appear to be the most effective. Moreover, the effect is greater when policies involve a financial cost (risk) suggesting that simple announcements can only be deemed as an imperfect substitute for actual interventions.     

Conservative solutions for progress: on solution types when combining QCA with in-depth Process-Tracing

Quality & Quantity - What is the most appropriate QCA solution type when engaging in a multimethod design that includes QCA and in-depth process-tracing (PT)? While either the intermediate or...     

Entry,Standards and Competition: Firm Strategies and the Diffusion of Mobile Telephony

This paper studies the effects of a countrys regulatory setting and competitive environment the performance of second-generation (2G) mobile on telecommunication. We consider three dimensions of sector performance: entry time, service prices and diffusion. We address the question of non-random selection arising from cross-country differences in the timing of the commercialization of new technologies. Our empirical exploration shows that this type of sample selection may indeed be a substantial problem in cross-country studies on technology diffusion and yield biased estimates of the policy variables of interest. Our estimation results suggest that standardization accelerates 2G entry and diffusion, although within-standards competition triggers less aggressive price competition than between-standards competition. We also find that an early monopolist will price more aggressively to build up an installed base. Furthermore, we find that liberalizing markets for incumbent technologies (i.e., fixed line telephony) has accelerated the commercialization of 2G.     

A specialization of the convex simplex method to cubic programming

This paper presents a specialization of the Convex Simplex method to cubic objective functions. The algorithm selects a direction of improvement by looking at the partial derivative. An optimal step is chosen by maximizing the objective function in that direction. This involves considering quadratic derivatives and selecting the appropriate step size. The pivoting is done by either a simple Simplex pivoting or by addition of a constraint as in Beale's algorithm. The convergence and the computational efficiency of the algorithm are presented in the last section of the paper, with several examples of application of cubic programming.

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Riassunto Si presenta un adattamento del metodo «Convex Simplex» per risolvere problemi la cui funzione obiettivo è cubica. L'algoritmo analizza le derivate parziali della funzione obiettivo e indica la direzione e la variazione ottimali per procedere poi in analogia all'algoritmo di Beale. Vengono infine analizzate l'efficenza e la convergenza del metodo e considerati vari esempi pratici di applicazione della programmazione cubica.

     

When does a developing country use new technologies?

We develop a model of optimal pattern of economic development that is first rooted in physical capital accumulation and then in technical progress. We study an economy where capital accumulation and innovative activity take place within a two sector model. The first sector produces a consumption good using physical capital and non skilled labor. Technological progress in the consumption sector is driven by the research activity that takes place in the second sector. Research activity which produces new technologies requires technological capital and skilled labor. New technologies induce an endogenous increase of the total factor productivity of the consumption sector. Physical and technological capital are not substitutable while skilled and non skilled labor may be substitutable. We show that under conditions about the adoption process of new technologies, the optimal strategy for a developing country consists in accumulating physical capital first; postponing the importation of technological capital to the second stage of development. This result is due to a threshold effect from which new technologies begin to have an impact on the productivity of the consumption sector. However, we show that once a certain level of wealth is reached, it becomes optimal for the economy to import technological capital to produce new technologies. The authors would like to thank the participants to the seminar of GREDEG, especially Richard Arena, Flora Bellone, Jean-Luc Gaffard and Jacques Ravix, and also the participants to a seminar at European University Institute. We are also grateful to the referees for their very thoughtful remarks and criticisms. Cuong Le Van started writing this joint paper with Olivier Bruno and Benoit Masquin in 2005, in GREDEG.     

Franco-Chinese Joint-Venture Formation and Shareholder Wealth

The main purpose of this article is to test the stock market reaction to Franco-Chinese joint venture announcements and to determine whether it is correlated with joint venture-specific and partner-specific factors. Certain factors specific either to Franco-Chinese joint ventures' characteristics (such as coastal or inland location of French investors in China, capital ownership of French and Chinese partners in the joint ventures, announcement date, business activity of the Franco-Chinese joint ventures) or to French partners (such as their experience in managing Franco-Chinese joint ventures, their international, European experience, and more particularly their experience of Asia) will be analysed with respect to their shareholder value creation. A research sample was prepared from the publication of information on Franco-Chinese joint venture announcements in the French daily newspapers Les Echos and La Tribune between 1994 and 2000 (seven years were analysed). It is important to stress that the announcements used in this sample corresponded to the sole formation of joint ventures. This research sample was made up of 47 Franco-Chinese joint venture announcements for which the relevant abnormal returns (AAR and CAAR) were evaluated. A negative and significant valuation effect was reported for Franco-Chinese joint venture announcements for a reduced event window spanning 7 days around the day of announcement. Among the eight different variables associated with shareholder value creation, only two of them appear to be statistically significant: announcement date and international experience of French partners. First, two opposite time trends were stated in the stock market reaction (negative reaction from 1994 to 1997 and positive from 1998 to 2000). Second, French companies possessing high international experience benefit from an important and positive stock market reaction.     

Maskin's Theorem with limited veto power

We weaken the no-veto power condition of Maskin [Maskin, E.,1999. Nash equilibrium and welfare optimality. Rev. Econ. Stud. 66, 23–38] to limited veto power, and prove that any monotonic social choice rule is Nash implementable if it satisfies this weaker condition. The result is obtained by using the canonical Maskin mechanism without modification. An immediate corollary is that the weak core is Nash implementable in any coalitional game environment. An example is given to show that the strong core need not be implementable, even when it is monotonic.