  Although single empirical studies provide important insights into who adopts
a specific LCT for what reason, fundamental questions concerning the relations
between decision subject (= who decides), decision object (= what is decided
upon) and context (= when and where it is decided) remain unanswered. In this
paper, this research gap is addressed by deriving a decision framework for
residential decision-making, suggesting that traits of decision subject and
object are determinants of financial, environmental, symbolic, normative,
effort and technical considerations preceding adoption. Thereafter, the
decision framework is initially verified by employing literature on the
adoption of photovoltaic systems, energy-efficient appliances and green
tariffs. Of the six proposed relations, two could be confirmed (financial and
environmental), one could be rejected (effort), and three could neither be
confirmed nor rejected due to lacking evidence. Future research on LCT adoption
could use the decision framework as a guidepost to establish a more coordinated
and integrated approach, ultimately allowing to address fundamental questions.
