@article{ref1,
title="Measuring unobserved prices using the structural time-series model: The case of cycling",
journal="Transportation research part A: policy and practice",
year="2010",
author="Broadstock, David C. and Collins, Andrew",
volume="44",
number="4",
pages="195-200",
abstract="This study presents a means of determining a historic (generalised cost based) price index for cycling in the UK for the period 1949-2006 using annual demand data. By specifying demand as a function of generalised price and income and then applying a structural time-series model to elucidate the unobserved component of prices (while controlling for observed income levels), it is illustrated that the role of prices in influencing demand is non-trivial. Over the sample period price responses generally influence demand for cycling to a greater extent than income effects.<p />",
language="en",
issn="0965-8564",
doi="10.1016/j.tra.2010.01.002",
url="http://dx.doi.org/10.1016/j.tra.2010.01.002"
}