Variation in the quality of job matches is an important determinant of workers' search decisions and the distribution of wages. I develop a structural search model that allows job match quality to depend on unpriced job amenities as well as monetary productivity, permitting match quality estimation that is robust to both unobserved amenities and selection. I estimate the model with wage and tenure data from the 1979 NLSY, finding that the standard deviation of job amenities is nearly as large as that of monetary productivity. I then use the model to investigate the welfare consequences of wage taxation and unemployment insurance. Traditional estimates of deadweight loss from wage taxation are increasingly overstated as job amenity dispersio...