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Table 7 Result of the Heckman two-step model
| Pooled data (1) | Upland system (2) | Lowland system (3) | |
|---|---|---|---|
| Variable | Coefficient | Coefficient | Coefficient |
| Effect of Market Participation on Welfare: Outcome Equation-OLS | |||
| YIELD | 1.182** (0.571) | −1.2503 (0.8632) | 0.8636 (0.6168) |
| EXCONT | 1577.404 (2522.187) | 9733.857 (6310.524) | −2477.328 (4412.423) |
| GNR | 17033.220*** (3305.896) | 23811.81*** (5882.429) | 16028.38*** (3289.288) |
| VOCT | 6154.037** (3006.475) | 6707.037(5754.729) | 1002.409 (3375.999) |
| RICINC | 0.017* (0.009) | 0.0661*** (0.0163) | 0.0221** (0.0104) |
| COSEED | 7.753 (47.103) | −9.0323 (68.8715) | 24.76333 (47.5518) |
| AGE2 | 14.295* (8.606) | −6.2775 (4.9782) | 13.9342 (8.9275) |
| AGE | −1458.261* (795.262) | 822.0033 (373.587) | −989.1075 (855.5659) |
| HSIZE | −2194.872*** (309.838) | −2613.632*** (504.914) | −2599.768*** (427.7767) |
| YRESID | 210.599** (82.123) | −50.5019 (228.7992) | 209.3046** (94.1272) |
| YEDUC | 644.065*** (165.175) | 130.358 (217.61) | 759.556*** (244.9649) |
| HOWN | 3593.435 (3504.657) | 12928.19 (9626.319) | 3786.609 (3662.154) |
| OFFINC | 6124.644* (3411.996) | 2027.904 (7291.49) | 8152.286** (3957.274) |
| SEACES | 4642.414 (3554.374) | −2443.123 (5420.077) | 2981.639 (3392.325) |
| ACREDIT | −2291.433 (2228.743) | 3121.345 (3700.875) | 504.0302 (2638.233) |
| SEDIST | 99.407 (158.767) | −304.55 (281.2507) | 32.52597 (254.5398) |
| TOTAREA | −179.980 (455.375) | 175.0563 (877.4499) | 810.1287 (533.2662) |
| CONSTANT | 47485.940** (23754.530) | 4070.513 (32750.9) | 36323.91 (24493.74) |
| Mills Lambda | 15272.930** (6612.894) | 17344.93* (9388.366) | 12547.09* (7334.769) |
| Determinants of Market Participation: Probit Model | |||
| MEORG | −0.504*** (0.172) | −0.6321(0.7890) | −0.3546* (0.1992) |
| EXCONT | −0.341** (0.165) | −0.5191(0.9021) | −0.8787*** (0.2050) |
| VOCT | −0.442** (0.193) | −2.8322** (1.3907) | −0.3375 (0.2339) |
| YEDUC | 0.023* (0.013) | 0.1591(0.1271) | 0.0332** (0.0163) |
| GNR | 0.666*** (0.176) | 3.0568**(1.2142) | 0.5249*** (0.2016) |
| AGE2 | −0.001 (0.001) | −0.0016 (0.0020) | −0.0004 (0.0005) |
| AGE | 0.072 (0.047) | 0.1184 (0.2049) | 7.49E-02 (5.07E-02) |
| HSIZE | −0.063*** (0.019) | 0.1113 (0.1474) | −0.1132*** (0.0243) |
| YRESID | −0.0025 (0.0664) | −0.0128 (0.0283) | −0.0061 (0.0075) |
| SEACES | 0.971*** (0.150) | 1.1562 (0.7573) | 0.8023*** (0.1741) |
| RICINC | 1.32E-06* (7.99E-07) | −3.03E-06 (4.41E-06) | 1.86E-07(9.79E-07) |
| COSEED | 0.011*** (0.003) | −0.0060 (0.0158) | 0.0042261 (0.0039) |
| ACREDIT | 0.353* (0.186) | 0.0927 (0.8604) | 0.6325*** (0.2040) |
| HOWN | 0.312 (0.257) | 2.1323** (1.0402) | 0.1723 (0.2997) |
| OFFINC | −0.537* (0.276) | −2.7412** (1.3619) | −0.8467*** (0.3119) |
| TOTAREA | 0.003 (0.042) | 0.1239 (0.1607) | 0.0696 (0.0498) |
| SEDIST | −0.026* (0.011) | −0.0306 (0.0325) | −0.0411*** (0.0135) |
| YIELD | 0.000*** (0.000) | 0.0007** (0.0003) | 0.0002*** (0.0000) |
| CONSTANT | −3.672*** (1.235) | −3.8903 (5.8576) | −2.2379 (1.3921) |
| RHO | 0.881 | 1.0000 | 0.78613 |
| SIGMA | 17344.686 | 17344.934 | 15963.17 |
| Number of observations | 557.000 | 170.000 | 454.000 |
| Censored observations | 161.00 | 18.000 | 150.000 |
| Uncensored observations | 396.00 | 152.000 | 304.000 |
| Wald chi2 (17) | 142.40 | 93.680 | 99.480 |
| Prob > chi2 | 0.0000 | 0.0000 | 0.0000 |
