5. Accounting earnings depend on the reasonable proportion of income and expenses during the period. Costs that are not associated with the current period should be incurred as assets to be transferred for later periods. Originated in ancient human market trading place for a fixed period of time or place, after the urban growth and prosperity, live in the city of adjacent area farmers, craftsmen, artisans, will start to deal with each other and contribute to the economy of the city. Obvious, the best way to trade is in the city there is a centralized, as market, can let the people in the provision of goods and business services, convenient for people to find goods and business contacts. When a city's market becomes large and more open, the city's economic vitality is also relatively growing. Solution: as long as the gasoline in the tank is exhausted, the extra gasoline vapor in the tank can be fired into the cylinder by the negative pressure of the engine, and no gasoline vapor will overflow. Based on the above two kinds of comparison and analysis of the concept of earnings, reveals the inadequacy of accounting earnings, i.e., the accounting income does not take into account inflation, the production gains, goodwill to improve the impact of changes and their value, and can be found on only the pursuit of reliability, and can be measured, which affect the enterprise's profit ability and continuous operation ability. Accounting, since the 1950 s began to pay attention to absorb the income concept of some reasonable kernel of economics, the concept of modern accounting theory of income in the income concept of economics. But hey! Come on baby boomers' it isn't yet the end around the globe! . . Just widen your horizon and open your options! . . Don't you realize that using your $1,000 / month pension you'll be able to still need your 'dream retirement' in the tropics and live like a king? With that budget, you can rent an appropriate fully furnished 2 BR bungalow or 2 BR Apartment or Condo, with complete amenities! You can even possess a caregiver to look after you or perhaps a maid/servant to serve and allow you to doing household chores! You can shop the selection of food or dine in fine restaurants and definately will reside in a nice community and co-exist with the warm and hospitable 'locals' with a smile, who speak and understand a foreign language! (2) actual income -- the increase of material wealth;