Abstract
Historic estimates of livestock production functions have used repeated observations on the animals to estimate the overall gain surface. The estimates involve autocorrelation accordingly. To circumvent this problem, gain isoquants are estimated directly by means of an instrumental variable approach. Data are from a swine experiment designed for the purpose with 648 hogs. Protein supplement and corn serve as the substitute inputs. Protein supplement is estimated as the instrumental variable. Isoquant equations then are predicted for three weight intervals. Finally, a decision model is applied for economic choice. Comparisons are made for various price sets of recent years.
Original language | English (US) |
---|---|
Pages (from-to) | 466-474 |
Number of pages | 9 |
Journal | American Journal of Agricultural Economics |
Volume | 58 |
Issue number | 3 |
DOIs | |
State | Published - Aug 1976 |
Keywords
- Autocorrelation
- Decision model
- Instrumental variable
- Isoquants
- Production function
ASJC Scopus subject areas
- Agricultural and Biological Sciences (miscellaneous)
- Economics and Econometrics