This essay examines the difficulties of evaluating technological and behavioral innovations while they are still being developed, that is, the interim evaluation of ongoing innovation programs. The major recommendations warn against a premature reliance on a yet-undeveloped theory. Rather, careful attention could be usefully directed to recognizing project failures, delineating a series of relatively discrete steps in the innovation processes, defining and collecting pertinent data, and developing an innovation typology. Each of these has direct policy relevance.
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