Grocery_Prices {metaggR} | R Documentation |
Data: Grocery Prices
Description
Palley and Soll (2019) recruited volunteers passing through the student union to estimate the total price of 10 different bundles of nonperishable grocery items. Examples of items include a bottle of 190 Lil Critters Gummy Vites Sour Complete multivitamins ($10.93), a 5-oz. can of Wild Planet wild albacore tuna in extra virgin olive oil ($4.19), and an 11 oz. bag of Stauffer's Animal Crackers ($1.00).
Usage
E_GROCERIES
P_GROCERIES
THETA_GROCERIES
ID_GROCERIES
Format
E_GROCERIES
is a list of the judges' estimates of the prices in each of the 10 bundles of groceries. Specifically, the
th element is a vector of the judges' estimates of the price of the
th bundle.
P_GROCERIES
is a list of the judges' predictions of others. Specifically, the
th element is a vector of the judges' predictions of other judges' average estimate of the price of the
th bundle.
THETA_GROCERIES
is a vector of the prices of the 10 bundles of groceries. Specifically, the
th element is the actual price of the
th bundle.
ID_GROCERIES
is a list of the judges' identification numbers in the judgment tasks. Specifically, the
th element is a vector of identification numbers of judges' who participated in estimating the price of the
th bundle. These values make it possible to track a judge across judgment tasks.
- Remark.
The elements of each list correspond to the same judgment task. Specifically, the
th elements of
THETA_GROCERIES
,E_GROCERIES
,P_GROCERIES
, andID_GROCERIES
represent the true price, estimates, the predictions of others, and identification numbers associated with theth bundle.
Source
Asa Palley and Jack Soll. "Extracting the Wisdom of Crowds When Information Is Shared." doi: 10.1287/mnsc.2018.3047