Description of data and command files for
"Cooperation under the Shadow of the Future: Experimental
Evidence from Infinitely Repeated Games"
by Pedro Dal Bo

The Stata data file is datashadow.dta.

The Stata do file is maketable.do. It contains the commands for the
results presented in the paper.

Next is a short description of the variables in datashadow.dta.

Variable

Description

idnew

uninup id

idnew2

unique id of partner

session

1 if H=l or 5=0, 2 if H=2 or 5=1/2 , 3 if H=4 or 5=3/4

matchs

match jfc in the session (0 is practice match)

match

match counting from beginning of the experiment

round

round # in the match

id

experiment id (starts from 1 in each experiment)

id2

id of partner

points

earned points in the round

date

date!

finite

finite or dice depending of the type of experiment

dice

dummy=l if dice

pdl

pdl or pd2 depending on the payoff matrix

pd2

dummy=l if pd2

usd

usd or normal depending on order of treatments

normal

dummy =1 if normal

coop

dummy=l if subject chose C

coop2

dummy =1 if partner chose C

matchshalf

dummy =0 if matchs 1-5, 1 if matchs 6-10

outcome

1 if CC, 2 if DC, 3 if CD and 4 if DD

cc

dummy=l if outcome=CC

cd

dummy=l if outcome=CD

dc

dummy=l if outcome=DC

dd

dummy =1 if outcome=DD

cdydc

dummy=l if outcome=CD or DC

anyecon

dummy=l if major of subject is econ or business econ

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Variable Description

sessionl dummy=l if session 1

session2 dummy=l if session 2

session3 dummy=l if session 3

deltal dummy =1 if 8 =

delta2 dummy =1 if 8 =

delta2 dummy =1 if 8 =

hi dummy =1 if H=l

h2 dummy =1 if H=2

h3 dummy =1 if H=4

colorr dummy=l if subject was row/red player

earning $ earned in round

totearn total $ earned in experiment

The data for footnote 17 are in dice.txt. The analysis is straightforward.

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