Travel restrictions are often imposed to limit the spread of infectious diseases. As uniform restrictions can be inefficient and incur unnecessarily high costs, this paper examines the optimal design of restrictions that target specific travel routes. We propose a model with trade-offs between...

Our paper examines two critical members in the top management “subteam” – CEO and CFO – in firms' merger and acquisition (M&A) decision. We propose a concept of CEO-CFO relative optimism, measured by CEO's optimism relative to CFO's pessimism, to capture the subteam's collective...

Aiming at the wrong recognition over one century that Giffen goods are special examples of demand law and Giffen goods are rare, this paper strictly proves that the demand curve of any Giffen goods can only slopes lower right and any commodity that complies with the demand law would probably...

The current study points out that the derivation of the aggregate demand curve based on theory of consumer behavior has a fundamental flaw, from which the Giffen product has to be inferior good and has been always regarded as an exception of law of demand is therefore not convincing. The current...