Inherent flaws in accounting earnings In finance, investing means buying securities or other financial or paper assets. Valuation is a way to estimate the price of a potential investment. The types of investments include real estate, securities investment, gold, foreign currency, insurance or bonds or stamps. These investments may then provide future cash flows that may increase or decrease their value. The investment in the stock market is carried out by securities investors. The response to single factor value is trend. The tendency is the selection bias produced by the stimulation of the organism on a single environmental factor, which is the directional response form of the organism to the external stimulus, including the two basic forms of orientation and avoidance. The tropism has the tendency of phototropism, thermal tendency, wetness, tendency, and oxygenicity. It has the avoidance of light, heat, moisture, anaerobic and so on. For example, the acidity of paramecium, the thermal tendency of bedbugs and the phototropism of insects. The trend is the common response of low biological cells, biological tissues and protozoa. Tropism is in a series of internal inductance organically combined in a certain direction, to form a structure of ordering, and external single environment factor to form a single reaction, the biological function between the body and the external environment on the coherent function, to accelerate the ordering of the body development. When this series of inductivity is combined in a positive way, the tendency is formed. When this series of induction is combined in reverse, it forms a negative trend - the avoidance. In summary, the trend is the most elementary preordinate response to the external things of single factor value. The new classic "perfect" price mechanism The general function of deacetylation with the lysine residues is carried out by HDAC enzymes. Apart from this pair of HDACs there exists another enzyme which performs a similar function. The name with this enzyme is SIRT1 also it removes the acetyl group by way of a very unique mechanism. The end product of this enzyme mediated reaction is nicotinamide. Removal of acetyl group by HDACs doesn't involve NAD+ hydrolysis. Inhibitors like trichostatin A, which show specific action against HDACs don't have any action against SIRT1.