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» Resultado: 2 registros
| Registro 1 de 2 | |
| Autor: | Mishra, Ashok K. - Uematsu, Hiroki - Powell, Rebekah R. |
| Título: | Precautionary wealth and income uncertainty: a household-level analysis |
| Fuente: | Journal of Applied Economics. v.15, n.2. Universidad del CEMA |
| Páginas: | pp. 353-369 |
| Año: | Nov. 2012 |
| Resumen: | This study investigates the presence of precautionary savings among self-employed farm households using an instrumental variable approach on farm-level data. Results indicate that precautionary saving is a powerful determinant of wealth accumulation among U.S. farm households. Precautionary savings account for 53 per cent of total wealth accumulation in general. Our results indicate an age-wealth profile that is consistent with the life-cycle hypothesis. The share of precautionary saving in total wealth accumulation differs across farm households. Results show that for farm households receiving government payments (designed to benefit farmers by reducing income variability), precautionary saving account for a large share (51 per cent) of wealth accumulation, compared to 41 per cent for households that do not receive any government payments. |
| Solicitar por: | HEMEROTECA J + datos de Fuente |
| Registro 2 de 2 | |
| Autor: | Shaik, Saleem - Mishra, Ashok K. - Atwood, Joseph |
| Título: | Aggregation issues in the estimation of linear programming productivity measures |
| Fuente: | Journal of Applied Economics. v.15, n.1. Universidad del CEMA |
| Páginas: | pp. 169-187 |
| Año: | May 2012 |
| Resumen: | This paper demonstrates the sensitivity of the linear programming approach in the estimation of productivity measures in the primal framework. Specifically, the sensitivity to the number of constraints (level of dis-aggregation) and imposition of returns to scale constraints is evaluated. Further, the shadow or dual values are recovered from the linear program and compared to the market prices used in the ideal Fisher index approach. Empirical application to U.S. state-level time series data from 1960-2004 reveal productivity change decreases with increases in the number of constraints. Divergence in productivity measures is observed due to the choice of method imposed, various levels of commodity/input aggregation, and technology assumptions. Due to the piecewise linear approximation of the nonparametric programming approach, the shadow share-weights are skewed leading to the difference in the productivity measures due to aggregation. |
| Palabras clave: | PRODUCTIVIDAD | MODELOS | INDICES | |
| Solicitar por: | HEMEROTECA J + datos de Fuente |
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