An Empirical Examination of the Theory and Practice of how to Set X

competition-regulation-and-business||0multi-sector||57regulatory-economics||116
Practice area: Competition & Antitrust | Multi-sector | Regulatory economics
Client: LE Working Paper
Published: June, 2004
Keywords: quantitative analysis

This Working Paper examines the setting of the X-factor in price cap regulation. We show the US-style productivity-offset  X relies on assumptions that are unlikely to hold empirically. We propose a more direct X, where X equals the forecast of TFP growth less the difference between industry input and consumer price growth.