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.
Also called free market economy. Compare command economy. The difference is this: a market economy is a tool--a valuable tool--for organizing productive activity. The same is true for the market economy: the power of markets, for good and for evil, is enormous.