Determining the research and development (R&D) boundaries of the firm as the choicebetween internal, collaborative and external technology acquisition has since long been amajor challenge for firms to secure a continuous stream of innovative products or processes.While research on R&D...

Multivariate Tobit models are estimated using German cross?sectional data to test whether strategic complementarities exist between expenditures in four different types of ICT?components. If two ICT?components are complements, they are correlated (provided that agents act rationally)....

Multivariate Tobit models are estimated using German cross?sectional data to test whether strategic complementarities exist between expenditures in four different types of ICT?components. If two ICT?components are complements, they are correlated (provided that agents act rationally)....