There are a few generally accepted rules that apply to most Latin abbreviations. The major style manuals (MLA, APA and Chicago) agree that Latin abbreviations should be kept out of the main body of a text-that is, they should not appear in ordinary sentences within ordinary paragraphs.
Efficient-market hypothesis. Efficient-market hypothesis (EMH) is a theory in financial economics that states that an asset's prices fully reflect all available information.
market and command are similar in way that individuals are efficient because people are motivated to work. in market economy, if you succeed, you get monetary return/reward. and with money, you can live the billionaire life. on the other hand, in command economy, people are motivated to work diligently because of they are afraid.