The past decade has seen a proliferation of suggestions for market-based solutions to global poverty. While research emphasizes that sustainability innovation aimed at poverty alleviation must be grounded in user needs, few studies demonstrate how to study the poor for purposes of early phase...

Time use survey data has been used to model household activities beyond market transactions. Accordingly, measures such as the ‘goods intensity of household activities’ and the ‘energy and carbon intensity of household activities’ have been derived. In this paper, we build on this...

The new millennium has marked an increasing interest in citizens as energy end-users. While much hope has been placed on more active energy users, it has remained less clear what citizens can and are willing to do. We charted user inventions in heat pump and wood pellet burning systems in...

Users play an increasingly important role in product and service innovation. Finding the right users can require substantial search effort. Network searches are increasingly popular in searching for rare lead users. In these searches, implicit and inexact referrals have been found to comprise a...