Aoki, Reiko; Nagaoka, Sadao - Institute of Economic Research, Hitotsubashi University - 2005
stage innovation with free entry and trade secrecy, we identify cases when patentability is beneficial to society. Although … and innovation costs are high. However, patentability becomes less desirable as basic research costs decrease. We also …We explore the consequences of the utility requirement on speed of innovation and welfare. A weak utility requirement …