MARGIN (Stocks) allows investors to buy securities/assets by borrowing money from a broker/banker. The margin is the difference between the market value of a stock/asset and the loan a broker/banker makes.
ODD LOT is a quantity of securities less than the accepted unit of trading.
AUTHORIZE / AUTHORIZATION is to give permission for. For example, a manager authorizes a transaction by signing a voucher authorizing the disbursement.
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