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排序方式: 共有178条查询结果,搜索用时 15 毫秒
91.
Recent empirical analyses on different datasets have revealed a common exponential behavior in the shape of the probability density of the corporate growth rates. We present new evidence on this topic from the Italian Manufacturing Industry and propose a very simple mechanism that, under rather general assumptions, provides a robust explanation for the observed regularities. 相似文献
92.
We introduce state-dependent recursive preferences into the Mehra–Prescott economy. We show that such preferences can match the historical first two moments of the returns on equity and the risk-free rate. Other authors have reported similar results using state-dependent expected utility preferences. These authors have tended to emphasize the importance of countercyclical risk aversion in explaining the equity premium puzzle. We find that countercyclical risk aversion plays an important role but only when combined with modest cyclical variation in intertemporal substitution. 相似文献
93.
This paper shows how to represent a vector autoregression (VAR) in terms of the eigenvalues and eigenvectors of its companion matrix. This representation is used to impose the exact restrictions implied by the expectations hypothesis on the VAR for short and long term interest rates and to calculate the restricted maximum likelihood estimates. The first difference representation for short and long rates used by Sargent (1979) is shown to be inconsistent with the expectations hypothesis, but a VAR with two unit roots is constructed that satisfies the exact restrictions and leads to similar restricted estimates. 相似文献
94.
Angelo Moretti Natalie Shlomo Joseph W. Sakshaug 《Revue internationale de statistique》2020,88(1):1-28
Factor analysis models are used in data dimensionality reduction problems where the variability among observed variables can be described through a smaller number of unobserved latent variables. This approach is often used to estimate the multidimensionality of well-being. We employ factor analysis models and use multivariate empirical best linear unbiased predictor (EBLUP) under a unit-level small area estimation approach to predict a vector of means of factor scores representing well-being for small areas. We compare this approach with the standard approach whereby we use small area estimation (univariate and multivariate) to estimate a dashboard of EBLUPs of the means of the original variables and then averaged. Our simulation study shows that the use of factor scores provides estimates with lower variability than weighted and simple averages of standardised multivariate EBLUPs and univariate EBLUPs. Moreover, we find that when the correlation in the observed data is taken into account before small area estimates are computed, multivariate modelling does not provide large improvements in the precision of the estimates over the univariate modelling. We close with an application using the European Union Statistics on Income and Living Conditions data. 相似文献
95.
Angelo Santagostino 《Atlantic Economic Journal》2012,40(4):367-384
The Italian classical liberal tradition of Federalism and European integration is well founded. Starting with Luigi Einaudi, who took up the heritage of Carlo Cattaneo, it has continued with Giovanni Malagodi, Giovanni Demaria, and Bruno Leoni, not to mention the liberals of Einaudi’s times. The same reflection continues today. Alberto Alesina is a prominent personality among the scholars who can be considered as full heirs of Einaudi. A foresight, often impressive, is the thread linking Einaudi’s writings on European federation. Between the twenties and the early fifties of the 20th century, Einaudi traced with great precision the profile and many details of a politically and economically unified Europe. Today, we do not have the federation that he wished for, but the economic sovereignty among EU countries has been shared to a great extent. Other prominent Italian liberal thinkers and politicians have reflected on the idea of a federal Europe and on the incipient European construction: thinkers such as Bruno Leoni, Giovanni Malagodi and Giovanni Demaria. Giovanni Malagodi, for many years a member of the Italian Parliament and secretary general of the Italian Liberal party, in his speech for the ratification of the Treaty of Rome, advocated a European monetary union with a single currency substituting those of the Member States of the EEC. Both Giovanni Demaria and Bruno Leoni warned against the danger of Government interventionist policies in the European common market. Alesina, in various scholarly contributions on European integration and in the essay The Future of Europe, adopts a liberal perspective for his critical analysis of EU policies. 相似文献
96.
Ronny Vallejos Angelo Gárate Marcos Gómez 《International Review of Applied Economics》2019,33(2):228-240
AbstractThe measurement of comovement among economic variables is key in several areas of economics and finance. This article examines the comovement among Pension Fund Administrators (AFPs) in the Chilean private pension system from 2005 to 2016. We use several statistical methods to assess the comovement among the returns during this period. We found evidence of strong comovement among the returns of all AFPs; the higher the percentage of risk rate of the investment instrument, the higher the comovement was. The introduction of a new AFP in 2010 did not change the comovement patterns. The comovement analysis study shows that the quality attributes of the products offered by the AFPs are homogeneous, supporting the idea that concentrated markets with homogeneous products could incentivize tacit collusive behavior, which could distort the functioning of the pension market, thereby affecting the aggregate well-being of workers. 相似文献
97.
Daniel Reed Bergmann Jose Roberto Ferreira Savoia Claudio Felisoni de Angelo Eduardo Augusto do Rosário Contani Fabiana Lopes da Silva 《Applied economics》2018,50(51):5510-5520
Many publications, that treated with Portfolio Management, were devastating for all asset allocation models in the context of portfolios. The elimination of extreme events (asymmetric or tail dependence) during the portfolio construction process can reduce the skills of asset managers to reduce risk through diversification. The copula theory allows us to calculate an alternative to measure the dependence of extreme events in assets through the index lower tail dependence. We check that the strategies with tail dependence overcame Talmud rule, the Markowitz model and the model of Tu and Zhou by simulating 1,000 portfolios with 3, 5, 10 and 20 randomly selected assets from DJIA for the period 03/1990 until 12/2016. We conclude that models of tail dependence and Markowitz had more performance ex-ante than Talmud and the Tu and Zhou model for portfolios with 3, 5, 10 and 20 assets. Tail dependence models overcome Markowitz, in terms of cumulative return, in over 60% of months considered in the analysis. The results indicate that the Talmud rule should be discarded in a context of constructing portfolios with individual stocks ahead strategies with tail dependence. 相似文献
98.
The Coase Theorem is widely regarded as pointing to the importance of positive transaction costs for the analysis of economic institutions. Various interpretations of the Coase Theorem regard transaction costs as some set of impediments to contracting, or more broadly, as the costs of providing institutional solutions to conflicts over resource use. The abstract nature of the Coasean hypothetical tends to promote an abstract notion of property as a thin entitlement: a right in a designated person to take certain actions or derive value from a set of resource attributes. On this view, property is like a collection of tiny contracts. The property rights furnished by actual property law are much more coarse grained than this, and property is correspondingly “incomplete” for transaction costs reasons. Property and contract are substitutes in some situations, but they often are not interchangeable—because of Coasean transaction costs. 相似文献
99.
Technological innovation has always been considered a major stimulus for economic growth. High-speed internet access via broadband infrastructure has undergone rapid development since the end of the 1990s, thanks to the deployment of both fixed and mobile technologies. The present study investigates the impact of fixed broadband diffusion as a technological determinant of economic growth on the basis of a panel of 23 OECD countries over 15 years (1996–2010). The time horizon chosen is suitable for verification of the causal effect on growth of the transition from traditional copper to partially fibre networks. Through implementation of a dynamic panel by using the generalized method of moments (GMM) combined with an instrumental variable (IV) two-stage approach, we found a positive correlation between broadband diffusion and economic growth, even after controlling for countries initial endowment of information and communication technologies (ICT) and for the years of economic crisis. Our main finding provides evidence, through a continuous time interpretation of our estimations, of a quantitatively relevant relationship between broadband diffusion and economic dynamics in the short, medium and long runs. Our findings may be useful to policy makers in that they permit forecasting of the benefits of further transition from broadband to ultra-wide broadband networks. 相似文献
100.
New and small firms operating in the high-tech environments need strong entrepreneurial (EO) and learning (LO) orientations to enhance international growth. Yet, the relationship between these two key strategic dimensions and foreign growth can be contingent to the entrepreneur’s individual characteristics. Bringing together elements from strategic management, organization and entrepreneurship literatures, we employ a dynamic temporal perspective considering two levels of analysis, the firm and the entrepreneur, and we apply a fixed effects pooled time-series regression on a sample of 170 firms in two periods of time (2005 and 2015). Our findings indicate that SMEs that possess greater EO and LO have higher international growth. However, previous entrepreneurial and industry-specific managerial experience of the founder/CEO positively exert their effect on these relationships. Our results have important theoretical and practical implications for entrepreneurs and policy makers operating in highly innovative sectors. 相似文献