Sierra Madre, mountain system of Mexico. It consists of the Sierra Madre Occidental (to the west), the Sierra Madre Oriental (to the east), and the Sierra Madre del Sur (to the south).
The inconsistency is not explained by convergence theory. Convergence theory accepts that group conduct mirrors the prior qualities and convictions and behavioral air of the people who join a group. Developing standard hypothesis expect that standards rise after individuals accumulate for aggregate conduct and that their conduct thereafter is to a great extent reasonable.
An oligopoly is a market structure in which the market is shared between a few firms, this few firms sell identical or differentiated products , and the industry has significant barriers to entry.
The automobile industry considered an oligopoly because there are few leading auto manufacturers which are having significant influence over the industry. All these firms sell identical products. And the last characteristic of an oligopoly is also there: it is very hard for a firm to entry this market because production costs are huge.
A democracy is a system of government by the whole population or all the eligible members of a state, normally through electing representatives.
This type of system is called a traditional economic system.
