The jointly optimal monetary and fiscal policy mix in a multi-sector New Keynesian model with sectoral government spending and productivity shocks entails a separation of roles: Sectoral government spending optimally adjusts to sectoral output gaps and inflation rates---a policy supported by...

We study optimal monetary policy in a general equilibrium economy with heterogeneous agents and nominal rigidities. Households differ in type-specific, state-contingent labor productivity and initial firm ownership, yet markets are complete. The fiscal authority has access to a linear tax...

"This Companion is a comprehensive introduction to Modern Money Theory (MMT), covering a wide variety of topics from the nature and origins of money, to the fundamentals of government spending and taxation, to the application of MMT in developed and developing countries. Bringing together...