profit trailers Do not close yourself, do not imprison your thoughts, dare to deny yourself, and deny your past mistakes. To deny an error means to get it right. Through further study, what you get is no longer a matter of knowledge, but the improvement of cognitive ability, the improvement of analytical ability and the improvement of self-confidence, thus improving the operation ability. More than a decade ago, I learned that speculators are the buyers of market risk, buying the risks inherent in social and economic activities, and achieving profit by operating and managing risks. We are always unable to grasp the market correctly, not because we are stupid, but because we are the buyers and bearers of risk, and we are the footer of social economic risk. And society and business sell us the business risk. We take risks and more accurately, we generate losses to meet the risks of social and economic activities and maintain the normal operation of the social economy, which is the essence of the futures market. Essentially, individual speculators is equivalent to the asset management company, by buying risky assets to achieve the purpose of profit, which is you want to have change decayed for magical ability, to achieve such a request, your learning path will be endless. The response to variability is a resilient instinct. Elastic instinct (also called the conditioned reflex) is an organism formed in the process of life change with conditions and reflection, under certain conditions unrelated stimulus be signals caused by reflections of the unconditioned stimulus. It is not innate, but the reflection of the organism under certain conditions under certain conditions. Conditioned reflex can make animal learning and memory and non-conditional reflex related, but completely different new reflection activity. The formation of conditioned reflex is the formation or connection of the cerebral cortex, which is based on non-conditioned reflex. With conditioned reflex, animals not only reflect things that have direct physiological meaning, but also those that have indirect physiological significance. Elastic instinct can make animals for the changed things to adjust their instinctive behavior, make it easy to adapt to changes in the environment, thus than rigid instinct has more flexibility and purpose, and the body through the conditioning can not before the arrival of the stimulus itself accordingly reaction, make the body more proactive and initiative. Anyway, elastic instinct is higher biological value of variability of external things more advanced way of ordering reaction, is on the rigid instinct, extension, and the synthesis, make rigid instinct has more purposeful and flexibility What should we do now, other than what we have achieved? It is not obvious in some analyses, but it is important to note that economic profits include opportunity costs. The profit of an entrepreneur (normal profit) is usually positive, but economic profit can be either positive or negative (loss). That's why the opportunity cost is included: in a completely competitive market, when marginal cost equals marginal revenue, profit maximization or loss minimization conditions arise. If the market price is lower than the total average cost, which means that the economic profit is negative, the entrepreneur needs to compare the value of the loss and the average variable cost. If the business continues to operate, the negative economic profit must not be lower than the average variable cost, otherwise the entrepreneur would rather shut down the company than continue to take the loss. Frances O’Grady, the TUC general secretary, said: “Two people working next to each other, doing the same job, should get the same pay rates. But too often agency workers are treated like second-class citizens. Above all, they can avoid meddling in parliamentary politics, as the ECB did when Italy's silvio berlusconi government collapsed in 2011. Then they can lower their heads and hope for the best.