Hi all, Here's our (untimely) abstract. Any comments would be much appreciated. Thanks, Dennis & Jeremy How Healthy Are We? A disadvantage to using ranked data for health state valuation Health state valuations (HSVs) constitute a fundamental building block for measuring health system performance. To obtain HSVs, investigators often ask respondents to value levels of disability using the time trade-off (TTO) method. This procedure is costly, time-consuming, and difficult to implement. Salomon (2003) proposes a model that estimates HSVs using only ranked data, tests it with the 1993 British General Public Survey, and finds the results nearly identical to a TTO-based model. We extend Salomon (2003) by allowing HSVs to vary according to individual characteristics like age and marital status, but find that some quantities of interest cannot be estimated with the rank data. Our results show one limitation to using ordinal data to measure cardinal quantities.