There is growing interest in the extent of informal economic activity
as a form of income generating or subsistence activity within first wo
rld economies, but little agreement exists in the literature as to wha
t constitutes informal work, what activities in addition to monetary e
xchanges make up the informal economy, and where these activities are
located. The lack of consensus on the proper definition of the activit
ies that make up the informal economy is reflected in the lack of syst
ematic data available to investigate these forms of work. This paper i
nvestigates using telephone survey research techniques to develop inex
pensive and efficient data sources to answer questions about the forms
, prevalence, and location of informal work. The research uncovers pro
blems associated with developing survey based measures of informal act
ivity, but it also demonstrates the viability of this approach as well
as the generally high level of participation in both rural and urban
places.