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21.
Enno Masurel Peter Nijkamp Gabriella Vindigni 《Entrepreneurship & Regional Development》2013,25(1):77-86
This paper aims to examine the performance conditions of ethnic (migrant) entrepreneurs in a modern economy. After a broad overview of key issues, an analytical tool from marketing theory is proposed, based on the five Ps (Product, Price, Place, Personnel and Promotion). Next, an empirical application is presented, in which results from an in-depth interview study on Moroccan entrepreneurs in Amsterdam are discussed. Given the linguistic and qualitative information in our data base, two recently developed pattern recognition methods for categorized information, namely Apriori and rough set methods, are deployed in order to derive meaningful association and classification rules that are helpful to identify conditional success or performance rules. 相似文献
22.
Javier?AndrésEmail author J.?David?López-Salido Javier?Vallés 《Spanish Economic Review》2004,6(3):159-178
We compare the transmission mechanism of exogenous and endogenous monetary policies in a calibrated small open economy model with nominal and real rigidities. Under an exogenous monetary policy rule it takes implausible values of the intertemporal elasticity of substitution and the price adjustment costs to generate the liquidity and overshooting effects. Endogenous rules with strong feedback to inflation and output help to reproduce the response of the nominal interest and exchange rates to unanticipated monetary policy shocks that characterize the transmission mechanism of standard sticky price models. The liquidty and overshooting effects are always obtained when the model is augmented with a Taylor interest rate rule.JEL Classification:
E32, E43Javier Andrés acknowledges support of CICYT grant SEC2002-0026. We thank the comments of two anonymous referees and the editor, Jordi Caballé, to an earlier version of the paper. The views expressed here are those of the authors and do not represent the view of the Banco de España. 相似文献
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This paper proposes a methodology which improves the computational efficiency of the Monte Carlo simulation approach of value at risk (VaR) estimates. Principal components analysis is used to reduce the number of relevant sources of risk driving the portfolio dynamics. Moreover, large deviations techniques are used to provide an estimate of the minimum number of price scenarios to be simulated to attain a given accuracy. Numerical examples are provided and show the good performance of the methodolgy proposed.
(J.E.L.: C15, G1). 相似文献
(J.E.L.: C15, G1). 相似文献
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In recent years, an intensive debate on the economic valuation of biodiversity has entered the environmental-economics literature. The present paper seeks to offer first a critical review of key concepts that are essential for a proper understanding of such evaluation issues. Particular attention is given here to various monetary valuation approaches and to comparative (i.e., meta-analytical) methods from the perspective of conservation and sustainable use of biodiversity. Several illustrative examples are presented in order to highlight the usefulness of the various approaches discussed. Next, an attempt is made to infer general findings and lessons from past applied research by means of meta-analysis. In this context, a multi-dimensional technique originating from the field of artificial intelligence is deployed. It allows us to identify the most important variables responsible for changes in economic estimates of biodiversity. 相似文献
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We provide an evaluation of the measure of privately blocking coalitions in differential information economies. In the case
of atomless economies, it is proved that for a Pareto optimal allocation that is not a Walrasian expectations equilibrium,
to any symmetric profile there corresponds a ball such that "almost half” of the profiles it contains are privately blocking.
Analogous results are proved in the case of finite differential information economies for generalized coalitions and social
coalition structures. From a different point of view, the paper can be considered as a contribution showing private core equivalence
theorems under restrictions on coalition formation.
We thank an anonymous referee for observations and comments improving an earlier version of the present paper. 相似文献
28.
Massimo Bianchi Laura Tampieri Daniele Valli Casadei Gabriella Paganelli 《现代会计与审计》2014,(10):1038-1047
The purpose of this paper is to describe and demonstrate the validity of a methodology to distinguish, in the performances of high education institutions (HEIs), real from perceived performances. The extension of accountability to the evaluation of educational programs involves significant topics concerning the gap between perceived and real performances. It means that, since many actors such as teachers, students, and external stakeholders are involved in the process, the research on methodologies to distinguish subjective from objective parameters is still on the floor. Debate about performance evaluation in this collaboration is still in progress particularly as it concerns the proposal of several parameters and indexes to quantify the topic and reduce the subjectivism in the assessment and the gap between real and perceived performances. After describing and discussing an evaluation model based on three interdependent typologies of indexes, this will be tested in two Tempus projects having the purpose of activating Ph.D. and masters courses. The results encourage deepening researches in this direction and disseminating this methodology and extending and enriching the validation process. 相似文献
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Thi Nguyet Anh Nguyen Thi Hong Hanh Pham Thomas Vallée 《The journal of international trade & economic development》2017,26(8):1000-1024
The present paper aims to explore the competition in exports among ASEAN + 3 members by applying the export similarity index for the disaggregation export data from 1990 to 2014. We also discuss the changes of comparative advantage of ASEAN + 3's exports through the revealed comparative advantage index and its relation with similarity index. First, the results support the idea that export similarity varies among ASEAN + 3 member states over the period 1990–2014. Second, we find evidence of several export communities. In particular, five countries, notably China, Japan, Malaysia, Singapore and South Korea, with the highest similarity index form an export community mainly in the electronic microcircuits and parts of office machines. Third, the revealed comparative advantage seems to be the key factor defining the similarity level of exports. Finally, the revealed comparative advantage analysis partly allows us to verify the Ricardo's theory and New Trade theory in the context of ASEAN + 3 trade integration. 相似文献