A matrix approach to the Gini index decomposition by subgroup and by income source

The literature offers two main ways of decomposing the Gini index: decomposition by population subgroup and by income source. This article proposes merging the two decomposition dimensions by suggesting a matrix formula for the Gini index which permits the simultaneous decomposition by subgroup and by income source. Using this multi‐decomposition, one can investigate the role of the interaction between the subgroup and the source components in determining the overall inequality. We apply the methodology to sample data on Italian household incomes collected in 2008.     

An evaluation of financial institutions: Impact on consumption and investment using panel data and the theory of risk-bearing

The theory of the optimal allocation of risk and the Townsend Thai panel data on financial transactions are used to assess the impact of the major formal and informal financial institutions of an emerging market economy. We link financial institution assessment to the actual impact on clients, rather than ratios and non-performing loans. We derive both consumption and investment equations from a common core theory with both risk and productive activities. The empirical specification follows closely from this theory and allows both OLS and IV estimation. We thus quantify the consumption and investment smoothing impact of financial institutions on households including those running farms and small businesses. A government development bank (BAAC) is shown to be particularly helpful in smoothing consumption and investment, in no small part through credit, consistent with its own operating system, which embeds an implicit insurance operation. Commercial banks are smoothing investment, largely through formal savings accounts. Other institutions seem ineffective by these metrics.     

世界经济的新平衡

“我对奥巴马总统说的5年内出口要翻倍的想法是持怀疑态度的。我认为光靠美元的贬值是不能达到出口翻倍效果的。”     

Industrial Linkages and Export Spillovers from FDI

In this paper we investigated the hypothesis of export spillovers from foreign multinationals to domestic firms using a data set of UK manufacturing firms from 1992 to 1999. Unlike previous studies we allow not only for the possibility of horizontal (i.e. intra‐industry) and regional externalities, but also for vertical ones (i.e. inter‐industry: forward and backward). Deploying the Heckman selection process we modelled the two decisions of whether to export or not, and how much to export, separately. The results indicate that the decision to start exporting is positively associated with the presence of foreign firms in the same industry and region; furthermore, export‐oriented foreign affiliates seem to be the source of stronger export spillovers. The decision concerning how much to export is affected positively by foreign firms in downstream industries and by those in the same industry and region that do not export.     

Factors that influence the financial literacy of young Spanish consumers

This study examines the development of mathematical and financial literacy skills amongst 471 students in Spain. Most studies on this topic have looked at either one or the other skill but they have not examined the relationship between the two.  The use of simultaneous equations has enabled us to do so. The aim of the paper is to disentangle the factors determining the financial skills of young consumers in Spain. To do this, the PISA Financial Literacy Assessment conducted by the OECD in 2012 is used. Our paper’s main contribution lies in the methodological way to deal with the empirical challenges overshadowing our study. Particularly, our methodological strategy is defined by the application of a multi‐level model of simultaneous equations (MSiEM). This method allows us to take into account the simultaneous determination of math and financial skills at school and the nested structure of the database. This MSiEM permits the identification of the determinants of financial skills, differentiating between the influences operating at school level from those at student level. A first conclusion is that the development of financial abilities of young consumers is mediated by their mathematical skills. A second conclusion, in accordance with those of other international studies, is the importance of the family on the financial literacy of 15‐year‐old Spanish students. The family, a first‐order determinant in reading, science and math scores, is also a key variable in the development of financial skills. Finally, school type (public vs. private) does not display any effect on either the financial or math performance of Spanish young people.     

Do we need deeper trade agreements for GVCs or just a BIT?

The paper investigates two policies geared towards stimulating and shaping global value chains (GVCs), namely deep regional trade agreements (DRTAs) and bilateral investment treaties (BITs). In an augmented gravity model, we test the impact of both policies on a variety of trade in value added indicators. We find that both policies are likely to increase GVC trade, although their transmission channels differ. While backward linkages are stimulated through both BITs and DRTAs, forward linkages respond only to DRTAs. The estimates suggest that negotiating a DRTA with investment provisions has a higher impact on trade in value added than signing a shallow RTA and a separate BIT.