Table 1.
Descriptive statistics for 1,655 plots and 533 associated households (averages for 2002–2004 and 2006–2008)
| 2002–2004 |
2006–2008 |
|||
| Plot or household information | Conventional | Bt | Conventional | Bt |
| Plot level information | ||||
| Seed cost (1,000 Rs/acre) | 0.51 (0.26) | 1.60*** (0.43) | 0.47 (0.21) | 0.91*** (0.32) |
| Pesticide cost (1,000 Rs/acre) | 2.27*** (1.80) | 1.43 (1.57) | 1.07 (1.21) | 1.07 (1.38) |
| Yield (kg/acre) | 520.64 (315.54) | 705.40*** (360.41) | 588.85 (318.66) | 829.03*** (341.08) |
| Profit (1,000 Rs/acre) | 3.60 (5.80) | 6.14*** (6.89) | 5.31 (6.80) | 10.32*** (7.73) |
| No. of plots | 601 | 298 | 64 | 692 |
| Household level information | ||||
| Land owned (acres) | 13.25 (15.45) | 15.07* (18.42) | 11.48 (12.28) | 11.61 (12.68) |
| Expenditures (1,000 Rs/y) | 85.87 (71.01) | 122.76*** (79.00) | 87.90 (64.14) | 90.43 (88.82) |
| No. of households | 363 | 222 | 61 | 432 |
*, *** imply that the mean value is significantly higher than that of conventional/Bt in the same time period at the 10% and 1% level, respectively. Mean values are shown with SDs in parentheses. Household expenditures were deflated using the consumer price index. Rs, Indian Rupees. Additional variables are shown in Table S1.