T. Stengos, Y. Sun, and D. Wang, "Estimates of Semiparametric Equivalence
Scales", Journal of Applied Econometrics, Vol. 21, 2006, pp. 629-639.

The data file ssw-data.txt is an ASCII file in DOS format. It is zipped in
ssw-data.zip.

Below we provide the variable definitions. A detailed description of data
sources can be found in the paper. 

The variables contained in the data file are:

  SFOOD = Share of food in total expenditures 
  SCLOTH = Share of clothing in total expenditures 
  SFUELS = Share of fuel in total expenditures 
  TE = total expenditure
  NS = number of seniors in the household
  NA = number of adults in the household
  NY = number of youths in the household
  NC = number of children in the household
 
There are 8741 observations.