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Money markets mainly involve short term borrrowing and lending attributed to the short maturities of the securities (usually a year or less). The main players are financial institutions and large companies which are able to borrow or lend large amounts that are well over $5 million in just one transaction. The biggest purpose of money markets is to help in supporting trade. Lexington, United States
https://moneyonlineinvestment.com/_/money_market/r284936_Searching-money-market/United States.html