This paper questions the presumption that transferable quota licenses are worth more and result in higher welfare. We show that the price of a transferable license will tend to be higher than of its nontransferable counterpart only if the underlying quota is quite restrictive.

The authors examine a variant of the uncapacitated lot-sizing model of Wagner-Within involving sales instead of fixed demands, and lower bounds on stocks. Two extended formulations are presented, as well as a dynamic programming algorithm and a complete description of the convex hull of solutions.

We test the hypothesis that large firms devote a higher proportion of their expenditure on research and development (R&D) on process innovation than smaller firms.