Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Unified Growth Theory Contradicted by the Absence of Takeoffs in the
  Gross Domestic Product   Data describing historical economic growth are analysed. They demonstrate
convincingly that the takeoffs from stagnation to growth, claimed in the
Unified Growth Theory, never happened. This theory is again contradicted by
data, which were used, but never properly analysed, during its formulation. The
absence of the claimed takeoffs demonstrates also that the postulate of the
differential takeoffs is contradicted by data.

16
The categories of this paper are: stat
24
The categories of this paper are: dg-ga
3
The categories of this paper are: physics
25
The categories of this paper are: patt-sol
21
The categories of this paper are: adap-org
23
The categories of this paper are: solv-int
7
The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
6
The categories of this paper are: astro-ph
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
13
The categories of this paper are: quant-ph
8
The categories of this paper are: hep-ex