effect determines the technology-sharing incentives. In equilibrium at most one firm shares some of its technologies. For … similar technology distributions, there exists an equilibrium in which nobody shares. If the technology distributions are …

Hirsch ... [et al.] -- Supporting mathematical communication through technology / Chandra Hawley Orrill, Drew Polly … / P. Mark Taylor -- Fostering mathematical competence through technology-enhanced interactive environments / Azita … Manouchehriazi -- Using technology to engage students with the standards for mathematical practice: the case of DGS / Milan Sherman …