Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Super-exponential bubbles in lab experiments: evidence for anchoring
  over-optimistic expectations on price   We analyze a controlled price formation experiment in the laboratory that
shows evidence for bubbles. We calibrate two models that demonstrate with high
statistical significance that these laboratory bubbles have a tendency to grow
faster than exponential due to positive feedback. We show that the positive
feedback operates by traders continuously upgrading their over-optimistic
expectations of future returns based on past prices rather than on realized
returns.

24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
15
The categories of this paper are: nucl-ex
27
The categories of this paper are: comp-gas
12
The categories of this paper are: nucl-th
22
The categories of this paper are: chao-dyn
16
The categories of this paper are: stat
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
19
The categories of this paper are: eess
8
The categories of this paper are: hep-ex