In the firm or industry have one particular Value chain model which have two activities primary and secondaryPrimary activities are:- Inbound logistics -> operation -> outbound logistics ->...
The truth is that the same motives drive the monopolistic firm and the competitive firm: Both strive to maximize profits.
Here is a link to an alphbetical list on the NYSE website... http://www.nyse.com/equities/nyseequities/1167954368153.html
anytime -Of course there is no limit for a comapny to buy another one
A Firm is a lawyer's office where you can go if you need a lawyer.