Main model | Sensitivity test | |||||||||
Registry period for non-registry countries | ||||||||||
1999–2018 | 1994–2018 | 2003–2018 | 2006–2018 | 2012–2018 | ||||||
Coef. | SE | Coef. | SE | Coef. | SE | Coef. | SE | Coef. | SE | |
Intercept (β0) | 0.0746*** | 0.0142 | 0.0741*** | 0.0142 | 0.0756*** | 0.0142 | 0.0766*** | 0.0142 | 0.0787*** | 0.0142 |
Registry country (β1) | −0.0005 | 0.0155 | −0.0080 | 0.0155 | −0.0010 | 0.0154 | −0.0021 | 0.0154 | −0.0053 | 0.0154 |
Registry periods (β2) | 0.0182*** | 0.0030 | 0.0127*** | 0.0032 | 0.0226*** | 0.0030 | 0.0245*** | 0.0030 | 0.0210*** | 0.0037 |
Trend (β3) | −0.0003*** | 0.0001 | −0.0002*** | 0.0001 | −0.0003*** | 0.0001 | −0.0003*** | 0.0001 | −0.0002*** | 0.0001 |
Registry period of registry countries (β4) | −0.0163*** | 0.0033 | −0.0123*** | 0.0034 | −0.0198*** | 0.0032 | −0.0217*** | 0.0033 | −0.0204*** | 0.0040 |
Hausman test | ||||||||||
Test statistics | 2.20 | 2.38 | 0.68 | 2.11 | 2.36 | |||||
Hausman test p value | 0.33 | 0.30 | 0.41 | 0.35 | 0.31 |
Two-tailed p values: ***p<0.01, **p<0.05, *p<0.1.