locational cost profit volume analysis At the same time, because of the surplus value for money is the commodity that only appeared well after the completion of the production process, it is further considered capitalists in order to produce goods all prepaid capital input by the capital employed are not included in the cost price (including those fixed capital). Not only that, the flow of goods from the production process into the process, in order to engage in sales activities to additional capital (including pure circulation costs), therefore, the residual value is considered to be not only all capital in advance in the field of production, but also be regarded as include all of the advance in the field of production and circulation of capital brought together. Securities investment refers to investors (as a legal person or natural person) to buy shares, bonds, funds, securities, and securities derivatives, in order to get dividends, interest, and capital gains investment behavior and investment process, is an important form of indirect investment.  Tubes in today's world is filled with harmony and polarization phenomenon, but still people are eager to build a better future, enable people to realize self-management, and supporting the social institutions really serve the people. The accounting income follows the historical cost principle and the matching principle, which is conducive to the objective reflection of the business management responsibility of the enterprise management authorities. But, due to the historical cost principle inherent defects, especially according to the present value of revenue and expenses by historical cost line, makes the calculation of accounting earnings lack of inner logical unity, and the matching principle is difficult to carry out, so that the book value of assets can not reflect its real value, cost cannot be fully compensated. And the economic benefit is measured in the current value, which reflects the actual value of the asset, which is beneficial to the full compensation of the cost. If the railings of the balcony and iron decks are wider than 4 inches, you need to find a way to block and secure them. They can be a danger to your child. Attaching a sheet of Plexiglas, plastic, or any other such materials are able to keep your children safe. There are some parents who make mistake of since the railings with cloth. That's never a good idea. Your child can lift the cloth, after all. You just need to make use of a hard material. A transparent material like Plexiglas wouldn't basically be safe, and also look great.