Dopfer is best known for several contributions in evolutionary economics, such as the axiomatization of evolutionary economic approach (Dopfer, 2001). In his recent publication, Dopfer (2004) argues that a concept of homo oeconomicus has to be replaced by the concept of rule-based agent, homo sapiens oeconomicus.
Dopfer with co-authors (Dopfer, Foster, Potts, 2004) has also espoused the introduction of intermediate level of analysis in economics, apart from micro- (individual) and macro- (aggregate) level. The meso-level is where collective behaviour patterns are established, and where institutions operate. This level works as an intermediary linking micro-level interactions and macro-level dynamics. Thus, importance of institutions in economic analysis is emphasized.