This article explores how the introduction of new products by multiproduct firms might be affected by existing goods in each firm's portfolio. A logit analysis is conducted to estimate the effects of ...

THIS is the fourth edition of a book which has been received with warm approval by English and Continental geometers. The first eight sections present no notable changes from the corresponding ...

MR. ATHERTON'S book is for engineering students whose mathematical knowledge does not include the calculus, and such readers will find it a very useful source of information. An Introduction to the ...