In this note we provide an elementary example with a concave utility function where the essentially unique consistent savings rule is discontinuous; such a savings rule could not arise with ...

Economists have often been criticized — by physicists, among others — for being overly formal with their mathematics. Journals are full of proofs and theorems, and for some economists the aim seems to ...

Long-term brand investments – those that build equity, reduce price sensitivity, and drive future growth – may be systematically misjudged by the very models used to evaluate them. After publishing ...