DP11074 Stagnation Traps

Author(s): Gianluca Benigno, Luca Fornaro
Publication Date: January 2016
Keyword(s): endogenous growth, growth traps, liquidity traps, multiple equilibria, secular stagnation
JEL(s): E32, E43, E52
Programme Areas: International Macroeconomics and Finance, Monetary Economics and Fluctuations, Macroeconomics and Growth
Link to this Page: cepr.org/active/publications/discussion_papers/dp.php?dpno=11074

We provide a Keynesian growth theory in which pessimistic expectations can lead to very persistent, or even permanent, slumps characterized by unemployment and weak growth. We refer to these episodes as stagnation traps, because they consist in the joint occurrence of a liquidity and a growth trap. In a stagnation trap, the central bank is unable to restore full employment because weak growth depresses aggregate demand and pushes the interest rate against the zero lower bound, while growth is weak because low aggregate demand results in low profits, limiting firms' investment in innovation. Policies aiming at restoring growth can successfully lead the economy out of a stagnation trap, thus rationalizing the notion of job creating growth.