Sustainability tests often ignore the joint dynamics of stock and flow variables. This paper shows that such a practice leads to inappropriate statistical inference, and that taking into account this joint dynamics when testing for unit root induces large power gains. This paper introduces a new...

This paper proposes a new testing strategy for unemployment hysteris as the joint restriction of a unit-root in the unemployment rate and no-effect of the level of unemployment in the Phillips wage equation. The relevant test statistics are derived when this joint restriction is imposed during...