The Phillips Curve and Beveridge Curve in a Multi-Sector Economy
(JOB MARKET PAPER) I develop a New Keynesian model with input–output linkages, search-and-matching frictions, and sticky prices to study how shocks propagate to output and inflation. Hiring costs tie firms’ marginal costs to local labor market tightness, creating a labor market propagation channel—distinct from input-price spillovers—by which higher demand in one sector raises wages and job-finding rates in that sector, redirects job search across sectors, and increases hiring costs elsewhere. Solving the model nonlinearly yields a Phillips curve that steepens as tightness rises, consistent with recent evidence, implying weaker output effects and stronger inflation responses to monetary policy when some sectors are tight.