This paper presents an evolutionary framework for horizontal technolog
y policies (HTPs) especially market-friendly ones involving project-ba
sed incentives (e.g, R&D project based grants rather than tax-based in
centives to yearly expenditures on R&D). HTPs are a category of techno
logical policies whose objective is to promote technological developme
nt per se, and associated management and organizational routines, irre
spective of industrial branch or technological area. They are being in
creasingly adopted by both advanced countries and newly industrialized
countries in response to the new opportunities and threats opened up
by the technological revolution and by the processes of liberalization
and globalization; and they complement the more specific and well-kno
wn selective and vertical policies aimed at individual sectors and tec
hnologies. The analysis is conducted within a learning-to-innovate fra
mework with emphasis on collective, organizational learning; search; a
nd market-building. The outcome is a technology policy cycle with dist
inct infant, growth, and mature phases, Proactive 'generation' of a cr
itical mass of projects for efficient learning and diffusion of innova
tion routines becomes the aim of the infant phase; while the mature ph
ase of the policy should focus on policy restructuring including drast
ic reductions in the support of routine projects and enhanced support
of more complex types of innovation. The paper also emphasizes the imp
ortance of a neutrality component in incentives in the infant phase of
increasing selectivity; and of building policy capabilities for effic
ient policy design and implementation.