African agricultural production is modeled as a sequential decision process, with men's labor first allotted to clearing, then women's labor allotted to harvesting. A switching regression is then used to measure the constraints due to clearing labor capacity and harvesting labor capacity. The import of men's clearing labor depends on the valuation of shadow wages. Output appears to be more frequently constrained by husband's clearing labor, and in this situation male labor appears under-utilized. However, output is also significantly constrained by female harvest labor, although the findings imply that female labor is over-utilized at this stage. © 2002 Elsevier Science B.V. All rights reserved.