Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Friendship Paradox and Systematic Biases in Perceptions and Social
  Norms   The "friendship paradox" (Feld1991) refers to the fact that, on average,
people have strictly fewer friends than their friends have. I show that this
over-sampling of the most popular people amplifies behaviors that involve
complementarities. People with more friends experience greater interactive
effects and hence engage more in socially influenced activities. Given the
friendship paradox, people then perceive more engagement when sampling their
friends than exists in the overall population. Given the complementarities,
this feeds back to amplify average engagement. In addition, people with the
greatest innate benefits from a behavior also tend to be the ones who choose to
interact the most, leading to further feedback and amplification. These results
are consistent with studies finding that people consistently overestimate peer
consumption of alcohol, cigarettes, and drugs; and, can help explain problems
with adolescent abuse of drugs and binge-drinking, as well as other behaviors.
I also discuss how these results change in cases of strategic substitutes,
where individuals overestimate free-riding by peers.

31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
30
The categories of this paper are: q-alg
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
15
The categories of this paper are: nucl-ex
7
The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas