This paper shows that a power utility specification of preferences over total expenditure (ie. CRRA preferences) implies that intratemporal demands are in the PIGL/PIGLOG class. This class generates (at most) rank two demand systems and we can test the validity of power utility on cross-section...

This paper evaluates a novel form of fiscal stimulus: a temporary cut in the rate of Value Added Tax (VAT). In December 2008, the UK cut the standard rate of VAT by 2.5 percentage points for 13 months in an effort to stimulate spending. We estimate the effect of the cut on prices and spending...

Sharp nonparametric bounds are derived for Hicksian compensating and equivalent variations. These 'i-bounds' generalize earlier results of Blundell, Browning and Crawford (2008). We show that their e-bounds are sharp under the Weak Axiom of Revealed Preference (WARP). They do not require...