This supplementary material for "Asymptotics for the Survival Probability of Time-Inhomogeneous Diffusion Processes" contains (i) some facts related to the normal density and distribution functions (Section 1), which are used in the calculation of explicit formulas in Equation (19) (Section 2);...

Firms constantly invest in improving product quality with innovative technologies. However, the out-come of research into innovative technology can be inconsistent. This paper investigates how a firm should choose between a mature technology and an innovative technology in upgrading an existing...