Recent monetary policy analyses show the profound implications of progressive taxation for monetary policy. This paper investigates how progressive taxation on labor income alters the effect of model uncertainty by introducing robust control. We analyze the effect by deriving closed form...

A number of previous studies suggest that inflation expectations are important in considering the effectiveness of monetary policy in a liquidity trap. However, the role of inflation expectations can be very different, depending on the type of monetary policy that a central bank implements. This...

Recent monetary policy studies have shown that the trend productivity growth has non-trivial implications for monetary policy. This paper investigates how trend growth alters the effect of model uncertainty on macroeconomic fluctuations by introducing a robust control problem. We show that an...

After the colossal financial crisis of 2008, many monetary policy analyses have shown the profound implications for financial stability of monetary policy in a liquidity trap. This paper investigates how monetary policy in a liquidity trap affects financial stability in a New Keynesian model...

Real-world central banks have a strong aversion to policy reversals. Nevertheless, theoretical models of monetary policy within the dynamic general equilibrium framework normally ignore the irreversibility of interest rate control. In this paper, we develop a formal model that incorporates a...

This paper investigates a robust monetary policy under speed limit policy when a central bank fears model misspecification. We show that the persistence of the output gap becomes small with the robust speed limit policy. The low persistence of the output gap contributes to mitigating the...

This paper studies how model uncertainty influences economic fluctuation when trend inflation is high. We introduce Hansen and Sargent’s (2008) robust control techniques into a New Keynesian model with non-zero trend inflation. We reveal the following three points. First, we find that robust...