We develop a set of necessary and sufficient conditions for equilibria to be determinate in a class of forward-looking Markov-switching rational expectations models and we develop an algorithm to check these conditions in practice. We use three examples, based on the new-Keynesian model of...

This paper studies a New-Keynesian model in which monetary policy may switch between regimes. We derive sufficient conditions for indeterminacy that are easy to implement and we show that the necessary and sufficient condition for determinacy, provided by Davig and Leeper, is necessary but not...

This paper is about the properties of Markov switching rational expectations (MSRE) models. We present a simple monetary policy model that switches between two regimes with known transition probabilities. The first regime, treated in isolation, has a unique determinate rational expectations...

For the past thirty years of the history of macroeconomic thought, the Indeterminacy School of Macroeconomics has used general equilibrium models with indeterminate equilibria to understand the independent role of beliefs in shaping macroeconomic outcomes. In this paper I review the most recent...

I review The End of Alchemy by Mervyn King, published by W.W. Norton and Company in 2016. I discuss King's proposed regulatory reform, the ‘Pawn Broker for All Seasons' (PFAS) and I compare it to an alternative solution developed in my own work. I argue that unregulated trade in the financial...

This paper explains the connection between ideas developed in my recent books and papers and those of economists who self-identify as Post Keynesians. My own work is both neoclassical and ‘old Keynesian'. Much of my published work assumes that people have rational expectations and that...

We extend Farmer's (2012b) Monetary (FM) Model in three ways. First, we derive an analog of the Taylor Principle and we show that it fails in U.S. data. Second, we use the fact that the model displays dynamic indeterminacy to explain the real effects of nominal shocks. Third, we use the fact the...

This paper uses the old-Keynesian representative agent model developed in Farmer (2010b) to answer two questions: 1) do increased government purchases crowd out private consumption? 2) do increased government purchases reduce unemployment? Farmer compared permanent tax financed expenditure paths...

This paper presents a theory of the monetary transmission mechanism in a monetary version of Farmer's (2009) model in which there are multiple equilibrium unemployment rates. The model has two equations in common with the new-Keynesian model; the optimizing IS curve and the policy rule. It...

This paper argues that the stock market crash of 2008, triggered by a collapse in house prices, caused the Great Recession. The paper has three parts. First, it provides evidence of a high correlation between the value of the stock market and the unemployment rate in U.S. data since 1929....