I use panel data from a unique field experiment to estimate the wage elasticity of working in the day labor market in rural Malawi. Once a week for 12 consecutive weeks, I make job offers to a pre-defined sample of 529 adults. The wage varies each week, ranging from MK 30 ($US 0.21) to MK 140 ($US 1.00) for a day's work. This approach provides exogenous variation in wages, allows me to observe the full distribution of wage offers rather than the censored distribution of accepted wages, and permits the inclusion of time and village or time and individual fixed effects. I estimate that the elasticity of employment is between 0.15 and 0.17, with no significant differences between men and women. I use auxiliary data from a nationally representative survey to confirm that equal elasticities for men and women is typical of the Malawian labor market during the agricultural off-season, the time of year when my experiment takes place. I collapse my data into a censored cross section that mimics data used in the previous literature to demonstrate that my low point estimates of the elasticity employment are due to my improved identification strategy, rather than reflecting inherent differences between Malawi and other developing countries. My results reject backward-bending labor supply curves for men or women, and suggest that labor supply is highly inflexible along the relevant margin in poor, rural markets. JEL Codes: O12, J22, J43. * 3115 G Tydings Hall,