The paper starts with examining the standard concept of government expenditure multiplier and finds that in a model of open economy with government revenues and expenditures the multiplier definition is incorrect in so far as the import intensity component relates total imports to GDP, whereas...

The paper aims to answer two main questions. Is it possible to calculate and analyze fiscal, investment and export multipliers in the short term? The classic approach is mainly based on the input–output balances, which are most often published every 5 years. Is it possible to determine the...

With our book Saving and Investment in the Twenty-First Century: The Great Divergence (published as open access), we present a comprehensive theoretical explanation as well as empirical evidence for the phenomenon of low interest rates observed in the OECD countries and China and make various...

We explore the short-term macrodynamics of stabilization policy at the effective lower bound (ELB) of the nominal interest rate, in an environment characterized by heterogenous and endogenously time-varying private-sector output and inflation expectations driven by evolutionary dynamics. We show...

This paper explores zero lower bound (ZLB) economics. The ZLB is widely invoked to explain stagnation and it fits with the long tradition that argues Keynesian economics is a special case based on nominal rigidities. The ZLB represents the newest rigidity. Contrary to ZLB economics, not only...

This paper provides a critique of zero lower bound (ZLB) economics which has become the new orthodoxy for explaining stagnation. ZLB economics is an extension of pre-Keynesian economics which attributes macroeconomic dysfunction to rigidities and market imperfections. The ZLB is the latest...

The financial crisis of 2008 and its aftermath offer an opportunity to institute significant reform in economics teaching, starting at the introductory level. Mainstream macroeconomics texts still rely heavily on a classical assumption of a long-run full employment equilibrium, which underrates...

This paper aims at providing macroeconomists with a detailed exposition of the New Keynesian DSGE model. Both the sticky price version and the sticky information variant are derived mathematically. Moreover, we simulate the models, also including lagged terms in the sticky price version, and...

An n-variable structural vector auto-regression (SVAR) can be identified (up to shock order) from the evolution of the residual covariance across time if the structural shocks exhibit heteroskedasticity (Rigobon (2003), Sentana and Fiorentini (2001)). However, the path of residual covariances is...

This paper reflects on the history and enduring relevance of Keynes? economics. Keynes unleashed a devastating critique of classical macroeconomics and introduced a new replacement schema that defines macroeconomics. The success of the Keynesian revolution triggered a counter-revolution that...