In this paper we extend a model by A. Ulph (1997) on the relationship between free trade agreements, environmental regulation and trade under imperfect competition. Ulph's model focused on the effectiveness of harmonisation policies against ecological dumping. It turned out that harmonised...

By affecting prices and thereby market shares of green and brown firms, product innovations and process innovations influence industry emissions even when they do not directly affect the emission intensity of the innovating firm. Using a differentiated two-stage duopoly, this paper therefore...

We examine heterogeneous rent-sharing in New Zealand using LEED data. Using a refined measures of quasi-rents per worker, we find that 20% to 30% of workers are in zero-excess-rent firms - disproportionately women, Māori or Pacific peoples, low-qualified workers, and those in hospitality, admin...

Abstract: This paper furnishes an inclusive framework to examine the welfare effects of the interventions of multiple policies, and other exterior alterations under imperfect competition and an assertion on particular and .the leading case of the ad valorem taxes. In particular, for the tax...

This paper studies commodity taxation in a model featuring heterogeneous consumers, imperfect competition, and tax salience. We derive new formulas for the incidence and marginal excess burden of commodity taxation highlighting interactions between tax salience and market structure. We estimate...

This paper examines whether a Northern firm prefers to export or to engage in FDI to serve the South. If the firm engages in FDI, its technology is imitated, and a Southern firm enters the market that may sell in both markets. The Northern firm may invest to prevent product piracy in the North....

This study explores the implications of rising markups for optimal Mirrleesian income and profit taxation. Using a stylized model with two individuals, the main forces shaping welfare-optimal policies are analytically characterized. Although a higher profit tax has redistributive benefits, it...

This paper studies a sole proprietorship economy with imperfect competition in a transferable utility setting. While consumers behave as price takers, producers issue real assets strategically to maximize their own utility. Even when complete markets are technologically feasible, equilibria with...

In oligopoly models with differentiated products, producers face a market demand function that reflects the preferences of consumers. However, typical assumptions on preferences place only weak restrictions on the shape of aggregate demand. This may result in profit functions that are not...

We examine the impact of self-learning Artificial Intelligence (AI) on firm competition in a growth model with endogenous labor supply and heterogeneous agents. AI possesses the ability to improve autonomously through application, testing, and training. When firms incorporate AI into their...