Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Causal Impact Of European Union Emission Trading Scheme On Firm
  Behaviour And Economic Performance: A Study Of German Manufacturing Firms   In this paper, we estimate the causal impact (i.e. Average Treatment Effect,
ATT) of the EU ETS on GHG emissions and firm competitiveness (primarily
measured by employment, turnover, and exports levels) by combining a
difference-in-differences approach with semi-parametric matching techniques and
estimators an to investigate the effect of the EU ETS on the economic
performance of these German manufacturing firms using a Stochastic Production
Frontier model.

24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
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
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th
3
The categories of this paper are: physics
16
The categories of this paper are: stat
33
The categories of this paper are: plasm-ph
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int