Ji Li and Lung-fei Lee, "Binary Choice under Social Interactions: an 
Empirical Study with and without Subjective Data of Expectation", 
Journal of Applied Econometrics, forthcoming.

README file for Section 5

Main.txt: 793 observations, 23 variables;
All.txt: 2162 observations, 22 variables;
Indicator.txt: 793 observations, 3 variables


Variables in Main.txt and All.txt:

MRID: Identification Number of main respondent;

CaseID (in All.txt): Identification number of each observation. If main
  respondent, then equals MRID; if discussant, then 5 digit number which
  concatenates MRID and a 1-digit ID for discussant

Dep_Var (in Main.txt only): 1 if voted/intended to vote for Dole; -1 if
  voted/intended to vote for Clinton

Sub_Expectation (in Main.txt only): Main respondent's subjective expectation
  of discussion group's average choice

Married: 1 if currently married; 0 otherwise

Women: 1 if woman; 0 otherwise

Christian: 1 if Christian (Protestant or Catholic); 0 otherwise

Go_to_service: 1 if go to religious service once a week or almost so; 0
  otherwise

Employed: 1 if currently employed; 0 otherwise

LT_HS: 1 if highest level of education is less than or equal to 11th grade;
  0 otherwise

HS: 1 if highest level of education is high school; 0 otherwise

Some_college: 1 if highest level of education is some college; 0 otherwise

College: 1 if highest level of education is bachelor's degree; 0 otherwise

Age: Actual age

Squared_Age: Squared age divided by 100

Black: 1 if African American; 0 otherwise

Hispanic: 1 if of Hispanic origin; 0 otherwise

HH_Income: 1 if annual household income is <$15000; 2 if $15000-24999; 3 if
  $25000-34999; 4 if $35000-49999/$50000-74999; 5 if >=$75000

Father_R: 1 if father considered himself a Republican when respondent
  growing up; 0 otherwise

Father_D: 1 if father considered himself a Democrat when respondent growing
  up; 0 otherwise

Mother_R: 1 if mother considered herself a Republican when respondent
  growing up; 0 otherwise

Mother_D: 1 if mother considered herself a Democrat when respondent growing
  up; 0 otherwise

Better: 1 if own household is financially better off compared to last year;
  0 otherwise

Worse: 1 if own household is financially worse off compared to last year; 0
  otherwise


Variables in Indicator.txt:

Row_Number_in_All: Indicate the location (row number) of each main
  respondent in All.txt

Size_of_Group: Size of the group, including discussants and main respondent

So basically, Column 1 refers to the location of the 1st member of a
discussion group, and (Column 1 + Column 2 - 1) refers to the location of
the last member of the group 
