Often neither the exact density nor the exact cumulative distribution function (c.d.f.) of a statistic of interest is available in the statistics and econometrics literature (e.g., the maximum ...

In this article we have adapted productivity analysis to the case of a cost model using a quadratic cost function and discrete data. The main theoretical result is a productivity index that can be ...

Quadratic equations and other equations is another important topic which is often given in the entrances to test the aptitude of the aspirants. Students find this chapter tricky to handle and hence we ...