How to Graph a Function in Excel. A mathematical function is a formula that takes an input, x, applies a set of calculations to it, and produces an output called y. By calculating a function at a ...

We develop a simple method for identifying and estimating cost functions in the presence of endogenous and unobserved quality. Using this method, we estimate that a quality-adjusted cost function for ...

If you're trying to convince your boss of a point, make sure to show her a graph. Because, as a new study from Cornell researchers Aner Tal and Brian Wansink suggests, people are more likely to ...