We analyse growth dynamics in an economy where the well-being of economic agents depends on three goods: leisure, a free access environmental good and a private good which can be produced by each agent through his own labour input. The private good can be consumed as a substitute for the...

We study how environmental regulation in the form of a cap on aggregate emissions from a fossil fuel (e.g., coal) interacts with the arrival of a clean substitute (e.g., solar energy). The cost of the substitute is assumed to decrease with cumulative use because of learning-by-doing. We show...

The economic theory of the firm has met an exponential growth in the last decades different from the traditional neoclassical approach. In the first part of the paper we are skimming through the most spread approaches, namely the theory of incomplete contracts and evolutionary school. In the...