common_value_auction: Documentation
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Accessed: 2024-04-25
In a common value auction game, players simultaneously bid on the item being
auctioned.
Prior to bidding, they are given an estimate of the actual value of the item.
This actual value is revealed after the bidding.
Bids are private. The player with the highest bid wins the auction, but
payoff depends on the bid amount and the actual value.
Participant
id_in_session
type
positive integer
doc
code
type
text
doc
Randomly generated unique identifier for the participant. If you would like to merge this dataset with those from another subsession in the same session, you should join on this field, which will be the same across subsessions.
label
type
text
doc
Label assigned by the experimenter. Can be assigned by passing a GET param called 'participant_label' to the participant's start URL
_is_bot
type
NullBooleanField
doc
choices
True: Yes
False: No
_index_in_pages
type
positive integer
doc
_max_page_index
type
positive integer
doc
_current_app_name
type
text
doc
_round_number
type
positive integer
doc
_current_page_name
type
text
doc
ip_address
type
GenericIPAddressField
doc
time_started
type
DateTimeField
doc
visited
type
NullBooleanField
doc
Whether this user's start URL was opened
choices
True: Yes
False: No
mturk_worker_id
type
text
doc
mturk_assignment_id
type
text
doc
payoff
type
decimal
doc
Player
id_in_group
type
positive integer
doc
Index starting from 1. In multiplayer games, indicates whether this is player 1, player 2, etc.
item_value_estimate
type
decimal
doc
Estimate of the common value, may be different for each player
bid_amount
type
decimal
doc
Amount bidded by the player
is_winner
type
NullBooleanField
doc
Indicates whether the player is the winner
choices
True: Yes
False: No
payoff
Group
id_in_subsession
type
positive integer
doc
item_value
type
decimal
doc
Common value of the item to be auctioned, random for treatment
highest_bid
type
decimal
doc
Subsession
round_number
type
positive integer
doc
If this subsession is repeated (i.e. has multiple rounds), this
field stores the position (index) of this subsession, among subsessions
in the same app.
For example, if a session consists of the subsessions:
[app1, app2, app1, app1, app3]
Then the round numbers of these subsessions would be:
[1, 1, 2, 3, 1]
Session
code
type
text
doc
Randomly generated unique identifier for the session.
label
type
text
doc
experimenter_name
type
text
doc
mturk_HITId
type
text
doc
mturk_HITGroupId
type
text
doc
comment
type
text
doc
is_demo
type
NullBooleanField
doc
choices
True: Yes
False: No