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排序方式: 共有113条查询结果,搜索用时 6 毫秒
111.
Manuel A. Domínguez Ignacio N. Lobato 《Econometrica : journal of the Econometric Society》2004,72(5):1601-1615
In econometrics, models stated as conditional moment restrictions are typically estimated by means of the generalized method of moments (GMM). The GMM estimation procedure can render inconsistent estimates since the number of arbitrarily chosen instruments is finite. In fact, consistency of the GMM estimators relies on additional assumptions that imply unclear restrictions on the data generating process. This article introduces a new, simple and consistent estimation procedure for these models that is directly based on the definition of the conditional moments. The main feature of our procedure is its simplicity, since its implementation does not require the selection of any user‐chosen number, and statistical inference is straightforward since the proposed estimator is asymptotically normal. In addition, we suggest an asymptotically efficient estimator constructed by carrying out one Newton–Raphson step in the direction of the efficient GMM estimator. 相似文献
112.
José Ignacio Carrasco Ognjen Obućina 《International migration (Geneva, Switzerland)》2023,61(1):239-255
This article explores the conditions under which Senegalese immigrants in Spain send remittances home, beginning with the premise that remittances are intertwined with migration histories and migrants’ incorporation into host societies. Given the strong gender norms in Senegal, we perform separate analyses for men and women. We use a longitudinal approach to analyse how remittance behaviour is affected by immigrants’ characteristics, their economic integration, and their ties to origin and destination. Our data come from the MAFE and MESE surveys, which were implemented in 2008 and 2011, respectively. The results indicate that remitters constitute a clear majority among Senegalese immigrants in Spain. The Kaplan–Meier analysis shows that they rarely stop remitting once they start doing so, and the multivariate analysis reveals a strong positive association between employment and remittance sending. Although most coefficients in the full model are similar for men and women, some important differences emerge as well. 相似文献
113.
Juan Ignacio Staricco 《全球网;跨国事务杂志》2023,23(4):715-731
This paper tackles the broader question of why inequality along global value chains (GVCs) tends to remain unchallenged despite the successful upgrading and insertion of firms operating in the world-system's periphery. Because the reduction and reproduction of inequalities are both intimately connected to power relations along GVCs, such relations are at the core of my analysis. Conceptually, my theorization of power builds on recent work by Dallas, Ponte and Sturgeon, which has sought to more systematically theorize and account for the multidimensional nature of power, and complements it with key insights drawn from World-Systems theory. Empirically, this paper analyses the biodiesel GVC between Argentina and the European Union, a case in which the successful economic upgrading and enhanced competitiveness of biodiesel producers in Argentina fail to overturn their subordinated position vis-à-vis European producers and traders. 相似文献