Over the past few years, there has been a subtle but significant shift in the way that data is structured in databases. Whereas yesterday’s databases were typically limited to storing data in rows and ...

This is a preview. Log in through your library . Abstract We develop a solution approach to the centralized pricing problem of a nested attraction model with a multistage tree structure. We identify ...

A recent study identifies a nested structure in many professions, where advanced skills depend on prior mastery of broader skills, with significant implications for wage inequality and career mobility ...