Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Ride the Lightning: The Game Theory of Payment Channels   Payment channels were introduced to solve various eminent cryptocurrency
scalability issues. Multiple payment channels build a network on top of a
blockchain, the so-called layer 2. In this work, we analyze payment networks
through the lens of network creation games. We identify betweenness and
closeness centrality as central concepts regarding payment networks. We study
the topologies that emerge when players act selfishly and determine the
parameter space in which they constitute a Nash equilibrium. Moreover, we
determine the social optima depending on the correlation of betweenness and
closeness centrality. When possible, we bound the price of anarchy. We also
briefly discuss the price of stability.

20
The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
32
The categories of this paper are: atom-ph
18
The categories of this paper are: econ
19
The categories of this paper are: eess
13
The categories of this paper are: quant-ph