A Crossed Analysis of Participations in Labor and Grain Markets: Evidence from Malawi
Bibliographic record
Abstract
Abstract This study contributes to the literature on the identification of factors shaping the decision to participate in the grain market in Africa. Unlike previous studies, we introduce labor market participation into the farm household model to highlight heterogeneities in decision making. Empirically, we rely on an extension of Heckman's approach and introduce control functions to mitigate endogeneity issues related to the adoption of agricultural technologies. We find that limited access to transportation infrastructure, by discouraging the supply of grain, constrains households to experience an excess of labor; price incentives may have a reverse effect on the choice of market regimes, even though the effect on production may be positive for households that are already participants. We also show that farmers' responses to grain prices are not sensitive to their labor market position. The use of agricultural technologies encourages cereal production and employment of external agricultural labor. This study thus provides a better targeting when designing policies promoting marketing and rural employment.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.000 | 0.002 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.004 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".