Bubbles are usually viewed as a threat to financial stability. This paper takes a more nuanced view. The world economy is going through an episode of Secular Stagnation, where the equilibrium rate of return on capital r is below the growth rate of the economy g. As is well-known, rational...

Since the beginning of the financial crisis in 2008, the Dutch economy lost 6% of gdp relative to Germany, even though the Netherlands (unlike the GIPSI countries) did not face serious problems to finance its sovereign debt. This bad performance is explained by the interaction of fiscal policy...

It is well known that rational bubbles can be sustained in balanced growth path of a deterministic economy when the return to capital r is equal to the growth rate g. When there is a lack of stores of value, bubbles can implement an efficient allocation. This paper considers a world where r...