What is business? types of business?

The proliferation of bittorrent and other file sharing media have threatened the copyright system. based on an understanding of incentives and opportunity cost, how are the decisions of musicians likely impacted?

Consider two similar industries, portal crane manufacturing (pcm) and forklift manufacturing (flm). the pcm industry has exactly three incumbents with annual sales of $800 million, $200 million and $100 million, respectively. the flm industry has also exactly three incumbents, with annual sales of $500 million, $450 million and $400 million, respectively. which industry is more likely to experience a higher level of rivalry?

When a market is in equilibrium, the buyers are those with the willingness to pay and the sellers are those with the costs.