We review an article recently published in this journal to show how er
rors of theory-building, measurement, and research design have contrib
uted to a confusing state of research in the area of interest-group lo
bbying activities. Contradictory findings in this area have come from
the use of cross-sectional variance models where theories have called
for longitudinal ones, from inaccurate measurements, from incomplete m
odels, and especially from a willingness to overgeneralize from case s
tudies. Despite a resurgence of studies on lobbying strategies, this l
iterature will remain contradictory and inconclusive unless researcher
s resolve some basic questions about their theories and the nature of
the evidence necessary to test them.