unit profit The optimal combination of benefits and risks is the best combination of benefits and risks. If the benefit is certain, the risk is minimized; 2. Accounting earnings are based on the assumption of accounting instalments, which refers to the production and operation results of a certain period of time. Early accounting earnings is calculated according to the cash basis, and the modern accounting earnings is according to the classification current income and expenses of accrual basis, after the appropriate ratio calculated. However, the benefits of cash determination are more acceptable to users. Unlike stock investing or futures trading, forex currency trading doesn't need and contains a particular market. All trades are executed Over The Counter (OTC) through high-speed interconnected electronic networks. The banks have their own dealing rooms and many individual traders trades from other home on specific encrypted currency trading software platforms. These trading platforms are usually of two sides as online or broker-side trading platforms and direct access or trader-side trading platforms. In 1934, professor rei, of the center for fluid mechanics, used model cars to measure the aerodynamic drag of various bodies in wind tunnels “Agency workers deserve to be paid the same as employees if they’re doing the same job, so the government should look to close the loophole that allows agency workers to sign away their right to equal pay.