This paper builds an econometrically identified equilibrium model of the labor market, by which one can jointly review labor supply and demand structure. A simple model economy is presented, where preferences are time-nonseparable, but technology is time-separable. The model allows recovery of the preference and technology parameters relevant to labor supply and demand behavior. The empirical model is verified to satisfy an econometric identification condition and estimated using a nonlinear instrumental method. The identified labor supply and demand parameters are consistent with theory. In conclusion, it appears that aggregate labor market fluctuations do not easily reject equilibrium interpretation.