Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Learning Epidemiology by Doing: The Empirical Implications of a
  Spatial-SIR Model with Behavioral Responses   We simulate a spatial behavioral model of the diffusion of an infection to
understand the role of geographic characteristics: the number and distribution
of outbreaks, population size, density, and agents' movements. We show that
several invariance properties of the SIR model concerning these variables do
not hold when agents interact with neighbors in a (two dimensional)
geographical space. Indeed, the spatial model's local interactions generate
matching frictions and local herd immunity effects, which play a fundamental
role in the infection dynamics. We also show that geographical factors affect
how behavioral responses affect the epidemics. We derive relevant implications
for estimating the effects of the epidemics and policy interventions that use
panel data from several geographical units.

4
The categories of this paper are: cond-mat
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
22
The categories of this paper are: chao-dyn
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg