Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Prosperity or pollution? Mineral mining and regional growth in
  industrializing Japan   This study investigates the impact of polymetallic metal and coal mining on
the regional economy in industrializing Japan. By linking the location
information of mines with registration- and census-based statistics, I found
that mines increased the local population via internal migration. This led to a
local, structural shift from the agricultural sector to the mining,
manufacturing, and service sectors, depending on sex. Furthermore, it decreased
female labor force participation. These effects are heterogeneous with respect
to the type of mines; coal mines are more likely to have stronger effects than
polymetallic mines. Although coal mines increase the risk of fetal and infant
deaths, gold and silver mines improve the health status of infants.

2
The categories of this paper are: math
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
12
The categories of this paper are: nucl-th
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
26
The categories of this paper are: bayes-an
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an