| 
      *P<0.01 **P<0.10
    Source: Estimated using survey data
        | Variable | Coeff. | Robust
          Std. Err. | dy/dx | Std. Err. |  
        | LN forward looking price | *0.0829 | 0.0357 | *0.1821 | 0.0783 |  
        | LN HH income | 0.0086 | 0.0171 | 0.0189 | 0.0375 |  
        | HH size | *0.0154 | 0.0049 | *0.0339 | 0.0107 |  
        | Disadvantaged group | -0.0180 | 0.0255 | -0.0395 | 0.0561 |  
        | Married | 0.0036 | 0.0506 | 0.0080 | 0.1112 |  
        | Beliefs | -0.0202 | 0.0348 | -0.0442 | 0.0758 |  
        | Information index | *-0.0036 | 0.0012 | *-0.0079 | 0.0026 |  
        | Age | **0.0065 | 0.0035 | *0.0143 | 0.0077 |  
        | Age squared | *-0.0001 | 0 | *-0.0003 | 0.0001 |  
        | Male | -0.0093 | 0.0256 | -0.0205 | 0.0564 |  
        | Literate | *-0.0740 | 0.0319 | *-0.1612 | 0.0687 |  
        | healthy days | *-0.0244 | 0.002 | *-0.0537 | 0.0044 |  
        | Constant | *8.3211 | 0.7612 |  |  |  
        | Number of obs | = | 367.00 | No problem of over dispersion |  
        | Wald chi2(12) | = | 356.32 |  
        | Prob > chi2 | = | 0.00 |  |  
        | Pseudo R2 | = | 0.07 |  |  
        | Log    pseudolikelihood | = | -513.59 |  |  |