Table 4.
Regression results of the primary equation
| Dependent variable |
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| Change in shrimping income per capita |
Change in fishing income per capita |
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| Explanatory variable | Model 1 | Model 2 | Model 3 | Model 4 | Model 5 | Model 6 |
| Change in mangrove area within SANAPA | 6,052.34 (1.75)† | 14,872.23 (2.88)‡ | 19,429.28 (2.83)§ | 5,475.83 (2.37)§ | 9,366.99 (2.10)§ | 13,873.98 (2.12)§ |
| Change in mangrove area outside SANAPA | 127.78 (1.56) | 510.11 (2.99)‡ | 626.15 (2.88)‡ | 85.67 (2.14)§ | 178.757 (1.32) | 322.99 (1.70)† |
| Change in mangrove area outside SANAPA * distance to boat ramp | — | −8.16 (2.57)§ | −12.46 (2.51)§ | — | −2.73 (1.05) | −5.55 (1.36) |
| Distance to boat ramp | — | −3.23 (0.64) | 0.62 (0.07) | — | 7.817 (1.65) | 13.41 (1.25) |
| Poorer group | — | — | −269.37 (0.57) | — | — | −368.68 (0.83) |
| Middle group | — | — | 22.224 (0.04) | — | — | −404.59 (0.83) |
| Change in mangrove area within SANAPA * poorer group | — | — | −12,924.48 (1.76)† | — | — | 3,664.04 (0.45) |
| Change in mangrove area within SANAPA * middle group | — | — | 3,277.62 (0.40) | — | — | 881.57 (0.11) |
| Change in mangrove area outside SANAPA * poorer group | — | — | 4.59 (0.02) | — | — | −0.31 (0.00) |
| Change in mangrove area outside SANAPA * middle group | — | — | 125.93 (0.80) | — | — | 33.66 (0.19) |
| R2 | 0.26 | 0.46 | 0.56 | 0.39 | 0.43 | 0.46 |
| N | 31 | 31 | 31 | 59 | 59 | 59 |
Robust t statistics are in parentheses. All regression models also control for IMR in 2004 and 2009 and income levels in 2004 of respective income sources.
Significant differences at †10%, §5%, and ‡1%.