In this note an alternative framework to Selden and Song's (1995) work is proposed in order to clarify some of their results and verify whether the relationship between pollution abatement and national income can be drawn as a J curve when there is more than one country involved. As Selden and...

We investigate the dynamic relationship between advertising and product quality under duopolistic competition. By using a simplified vertical product differentiation model with voluntary advertising, we show that the firm with larger market share has a larger advertising share and that there is...

In this note an alternative framework to Selden and Song's (1995) work is proposed in order to clarify some of their results and verify whether the relationship between pollution abatement and national income can be drawn as a J curve when there is more than one country involved. As Selden and...