This paper studies the welfare impact of a common monetary policy in the context of a two-country, general equilibrium model with liquidity effect and nominal wage contracts, heterogeneous agents, imperfect competition in the labor market, trade in goods, immobility of labor and mobility of...

We propose a general equilibrium model with oligopolistic output markets where two channels can cause a change in market power: (i) technology, via changes to productivity shocks and the cost of entry, (ii) market structure, via changes to the number of potential competitors. First, we...