Derivatives are widely applied in economic modeling and theory, because they are an invaluable tool used to measure the effects and rates of change in economic variables and find the maximum and ...

Important applications include semiparametric linear regression with censored responses and semiparametric regression predictors. Unlike the existing penalized maximum likelihood estimators, the ...

Coefficient bounds for functions with a positive real part are used in a rather novel way to find sharp bounds for the first six coefficients of a function which is inverse to a regular normalized ...