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Table 8 First-stage maximum likelihood parameter estimates

From: Do Mexicans care about air pollution?

Variable Parameter Coefficient t Statistic
Migration cost
 State \( \tilde{\mu }_{S} \) −4.63878*** −220.84
 Region \( \tilde{\mu }_{R} \) −1.9300*** −69.81
 Macro-region \( \tilde{\mu }_{\text{MR}} \) −1.08147*** −39.45
 Logit Scale Parameter \( \sigma \) 1.369671*** 10.14
  1. Asterisks denote significance at * 10 % level, ** 5 % level, and *** 1 % level. Recall that \( \sigma = \frac{1}{{\beta_{I} }} \)