Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The World Trade Web: A Multiple-Network Perspective   International Trade (IT) plays a fundamental role in today's economy: by
connecting world countries production and consumption processes, it radically
contributes in shaping their economy and development path. Although its
evolving structure and determinants have been widely analyzed in the
literature, much less has been done to understand its interplay with other
complex phenomena. The aim of this work is, precisely in this direction, to
study the relations of IT with International Migration (IM) and Foreign Direct
Investments (FDI). In both cases the procedure used is to first approach the
problem in a multiple-networks perspective and than deepen the analysis by
using ad hoc econometrics techniques. With respect to IM, a general positive
correlation with IT is highlighted and product categories for which this effect
is stronger are identified and cross-checked with previous classifications.
Next, employing spatial econometric techniques and proposing a new way to
define country neighbors based on the most intense IM flows, direct/indirect
network effects are studied and a stronger competitive effect of third country
migrants is identified for a specific product class. In the case of FDI, first
correlations between the two networks are identified, highlighting how they can
be mostly explained by countries economic/demographic size and geographical
distance. Then, using the Heckman selection model with a gravity equation,
(non-linear) components arising from distance, position in the Global Supply
Chain and presence of Regional Trade Agreements are studied. Finally, it is
shown how IT and FDI correlation changes with sectors: they are complements in
manufacturing, but substitutes in services.

23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
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The categories of this paper are: atom-ph
5
The categories of this paper are: gr-qc
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The categories of this paper are: stat
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: q-alg