Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Investigating the influence Brexit had on Financial Markets, in
  particular the GBP/EUR exchange rate   On 23rd June 2016, 51.9% of British voters voted to leave the European Union,
triggering a process and events that have led to the United Kingdom leaving the
EU, an event that has become known as 'Brexit'. In this piece of research, we
investigate the effects of this entire process on the currency markets,
specifically the GBP/EUR exchange rate. Financial markets are known to be
sensitive to news articles and media, and the aim of this research is to
evaluate the magnitude of impact of relevant events, as well as whether the
impact was positive or negative for the GBP.

30
The categories of this paper are: q-alg
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
31
The categories of this paper are: ao-sci
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
27
The categories of this paper are: comp-gas
3
The categories of this paper are: physics