The principal results of Head and Kumar's article are derived under the natural assumption that the number of price offers received per period by buyers is distributed Poisson. This case is of interest for two reasons. First, because the infinite sums and integrals that enter the equilibrium...

Productivity dispersion across firms is large and persistent, and worker reallocation among firms is an important source of productivity growth. An equilibrium model of growth and firm evolution designed to clarify the role of worker reallocation in the growth process is studied. We show that it...

We consolidate and generalize some results on price determination and efficiency in search equilibrium. Extending models by Rubinstein and Wolinsky and by Gale, heterogeneous buyers and sellers meet according to a general matching technology and prices are determined by a general bargaining...