Andrew Chesher, "Individual Demands from Household Aggregates: Time and
Age Variation in the Composition of Diet," Journal of Applied
Econometrics, Vol. 13, No. 5, 1998, pp. 505-524.

The data used in this paper are the property of the Ministry of
Agriculture, Fisheries and Food (UK) who do not permit open access, hence
the data cannot be lodged here.  The data are held at the ESRC (UK)  Data
Archive (http:dawww.essex.ac.uk), to whom enquiries concerning access
should be addressed.  Information concerning the Archive holding can be
obtained using the "BIRON" search engine (http:biron.essex.ac.uk).  The
study title under which the data are held is "National Food Suvrvey". 
Each year of data has a different study number.  At the time of writing
the latest year held is 1995, which has study number 3686. 

The cohort analysis in the paper is based on data for 1975-94.  The
analysis in Section 2 also uses data from 1974.

Household food responses are held in month and year specific files named
f2yyyymm where "yyyy" and "mm" denote year and month.  The food amounts
and identifying codes are held in variables named "hcq", "hfq"  and
"minfd".  Details of the food codes (e.g. units of measurement) are held
in a file named "minfd".  Nutrient conversion factors (which change across
years and seasons) are held in files named "nutcntsl" and "nutcntyr". 
Details concering nutrients (e.g. units of measurement)  are held in a
file named "nutrient".  Household and person details are held in year and
month specific files named "h1yyyymm" and "p1yyyymm"  respectively. 

A few households in which one or more members have missing ages were
deleted prior to the analysis.


Andrew Chesher
A.Chesher@Bristol.ac.uk