payable, due, asset classes, stocks, bonds, real estate, currency, commodities, gain, capital gain, realized gain, dividend, coupon, interest, rent, commission, broker, lease, lease rate, derivatives, financial derivatives, exchange, organized exchange, financial exchange, OTC, over-the-counter, commercial paper, fed funds, repo, repurchase agreement, treasury bill, negotiable CD, negotiable, acceptance, common stock, preferred stock, mortgage, mortgage loan, mortgage bond, corporate bond, government bond, municipal bond, regulation, regulatory agency, appreciate, appreciation, depreciate, depreciation, investment period, investment horizon, risk, diversification, hedging,