JEL code: L13

Oligopoly and Other Imperfect Markets

Substitution between fixed and mobile data amidst high levels of poverty and inequality
Mobile broadband is the main means of connecting to the internet in...
Ryan Hawthrone, Lukasz Grzybowski
Policy Brief
Narrowing the ‘digital divide’: the role of complementarities between fixed and mobile ...
We study substitution between fixed and mobile broadband services i...
Ryan Hawthrone, Lukasz Grzybowski
Working Paper
Benefits of regulation vs. competition where inequality is high: The case of mobile tel...
South Africa is the most unequal country in the world, with a Gini ...
Ryan Hawthrone, Lukasz Grzybowski
Policy Brief
Benefits of regulation vs competition where inequality is high: The case of mobile tele...
We test for the distributional effects of regulation and entry in t...
Ryan Hawthrone, Lukasz Grzybowski
Working Paper
The Competitive Status of the South African Wheat Industry
This article investigates the competitiveness of the South African ...
Philippus. C. Cloete, Johannes D. van der Merwe, Herman D. van Schalkwyk, Ewert P. J. Kleynhans
Working Paper
The role of network effects and consumer heterogeneity in adoption of mobile phones: ev...
In this paper we analyze the role of network effects and consumer h...
Lukasz Grzybowski
Working Paper
Fixed-to-Mobile Substitution in the European Union
This paper analyzes substitution between access to fixed-line and m...
Lukasz Grzybowski
Working Paper
Economies of Scale and Pension Fund Plans: Evidence from South Africa
The focus of this paper is on the presence of economies of scale in...
Albert Touna-Mama, Johannes W. Fedderke, Neryvia Pillay Bell
Working Paper
Endogenous market transparency and product differentiation
This paper endogenizes both market transparency and product differe...
Witness Simbanegavi
Working Paper
Loss leader or low margin leader? Advertising and the degree of product differentiation
This paper attempts to isolate the conditions that give rise to los...
Witness Simbanegavi
Working Paper
Equilibrium Pricing When Only Some Goods Are Advertised
We study how price advertising of a subset of products aspects equi...
Witness Simbanegavi
Working Paper
Informative Advertising: Competition or Cooperation?
I compare the outcome when firms semicollude on advertising to the ...
Witness Simbanegavi
Working Paper

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