Globalization and increased competition are forcing companies to review and improve their production processes to be more sustainable. However, a clear vision and environmental culture are lacking because, even today, companies are motivated to act to improve the environment essentially by...

We use the theory of generalised additive models to develop a non-parametric cost function for the Canadian cable television industry through the 1990s. We offer that statistical testing for substitutability/complementarity of inputs is important for regulators and policymakers since some forms...