advantages of profit maximisation One of the popular features of online/Mobile banking is SMS banking services which are operated using both push and pull messages. Push messages are the types the bank chooses to send to a customer's cellphone without the customer initiating a obtain the knowledge. For example push messages may be either Mobile marketing messages or messages alerting an event which happens in the customer's banking account, like a withdrawal of funds from your ATM or possibly a payment while using the customer's credit card, etc. Followed by Edwards and bear published in his 1961 book "the theory of corporate earnings and measurement of the current operating profit is defined as the sales revenue more than the amount of current production and cost of sales, which can realize the cost savings is in this issue of asset price increases, which can realize the history of the cost savings are the pin commodity costs and the difference between the current purchase price; The realized capital gains are the amount of sales revenue greater than the historical cost when dealing with long-term assets. They argue that "these incremental sums provide investors with a reasonable starting point for measuring the scale of relative affluence and a detailed analysis of the company's operating results and comparable financial conditions". They stress that any full income analysis should take into account both realized and unrealized benefits and classify them by source. When are advantageous to occur, such as no record, will not only lead to current income can't reflect, but also can lead to later to sell assets to income and related costs to wrong ratio; Operating earnings and, on the other hand, the production gains is usually produced by different management decisions, and adopted different circulation form, therefore, make the same comment on both, will weaken the role of the income statement. The orderly performance of the market ensures equal competition and fair trade, protecting the legitimate rights and interests of producers and operators and consumers. Positive economic profit is sometimes described as excess profit.