Firms in tradable sectors are more likely to be subject external competition limit market power, while nontradable firms dependent on domestic policies and institutions. This paper combines an antitrust index available for multiple countries with firm-level data from Orbis covering than 12 million 94 countries, including 20 over 10 years finds that profit margins of operating significantly lowe...

This paper is a compilation by table, graph, and equation of impact cratering rates from Jupiter to Pluto. We use several independent constraints on the number of ecliptic comets. Together they imply that the impact rate on Jupiter by 1.5-km-diameter comets is currently Ṅ(d 1.5 km) 0.005 0.003 0.006 per annum. Other kinds of impactors are currently unimportant on most worlds at most sizes. The ...

The geographical location of Ukraine provides a multitude possibilities for successful investment activity. There are rich natural resources, fertile soil and qualified low-cost labour force. On the other hand, investors have to deal with historical ties Soviet Union, corruption, and political instability exacerbated by occupation part territory Russia. This paper deals possibility identifyi...