This paper discusses aspects of recent policy towards mobile telephony in the U.K., including (i) the level of retail charges for calls from fixed to mobile networks, (ii) the level of call termination charges on mobile networks, and (iii) the level of connection subsidies offered by mobile...

An incumbent postal service provider faces two issues which make the design of efficient access pricing especially difficult. First, universal service obligations, together with the presence of significant fixed costs, require retail prices to be out of line with underlying marginal costs....

The purpose of the present Evaluation Study is to discuss the methodological problems researchers are facing in gauging the impact of aid on economic growth. The discussion is nontechnical and aimed at an audience without much prior knowledge in the fields of macroeconomics and econometrics. The...

The purpose of the present evaluation study is to discuss the empirical studies that attempt to estimate the impact of foreign aid on economic growth. The study draws on a previous evaluation study (Dalgaard and Hansen, 2009), which introduces the general econometric methodology involved in...

We consider a monopolistic firm producing a good while polluting and using a fossil energy. This firm can adopt a clean technology by incurring an investment cost decreasing exponentially with the adoption date. This clean technology does not pollute and has a lower production cost because it...

Traditionally, the scholarly journal market operates so that research institutions are charged high prices and the wider public is often excluded altogether, while authors can usually publish for free and commercial publishers enjoy high profits. Two forms of open access regulation can mitigate...

Traditionally, the scholarly journal market operates so that research institutions are charged high prices and the wider public is often excluded altogether, while authors can usually publish for free and commercial publishers enjoy high profits. Two forms of open access regulation can mitigate...

This paper is an attempt to investigate the causal relationship between economic growth and combustible renewables and waste consumption for 12 countries of the Middle East and North Africa (MENA) region during the period of 1975-2008 using panel cointegration techniques and panel causality...