This paper investigates the impact of technical progress on the relationship between competition an investment. Using a model of oligopoly competition with differentiated products where firms invest to reduce their marginal cost of production, I find that technical progress, which increases the...

The empirical relationship between competition intensity and the rate of productivity growth across 30 sectors of the French economy between 1978 and 2015 displays an inverted U-shape. This implies that there exists an optimal level of competition for each sector, defined by the price markup...

This paper studies the effects of infrastructure sharing agreements on telecommunications markets. Using an oligopoly model with an investment stage where firms compete " à la Cournot", I find that provided no firm is excluded, infrastructure sharing agreements decrease prices, increase...

This paper shows that the correlation between the Net Promoter Score and consumers Willingness To Pay in five European mobile markets is very strong. The Net Promoter Score is provided by a survey and the Willingness To Pay is calculated from the “Spokes Model” which is an economic model...

A recent study recommends to reinforce copper access regulation in order to promote NGA take-up and penetration. In particular it proposes to strengthen the unbundling obligations and to lower ULL price. However, these recommendations are not consistent with figures from the report itself....

Mobile industry is characterized by a sharp fall in megabyte price which highly benefi ts to consumers. This article aims to identify the main parameters that lead to such a fall and shows that the growth of traffic is by far the main cause. It proposes a parametric model that explains the...

In this study, we assess the inclusiveness of growth by tracking the yearly percentage change in the household consumption of individuals over different growth spells in Cameroon, Senegal, and Tanzania. With cross-sectional data, we track the consumption of groups of individuals that share...

In this study, we assess the inclusiveness of growth by tracking the yearly percentage change in the household consumption of individuals over different growth spells in Cameroon, Senegal, and Tanzania. With cross-sectional data, we track the consumption of groups of individuals that share...