First of all, it costs transaction cost for the manufacturer to purchase intermediate products in the market. It includes the cost of seeking suitable suppliers, signing contracts and supervising contract execution. If the manufacturer can produce some intermediate products within the enterprise itself, it can eliminate or reduce some transaction costs, and can better guarantee the quality of the products. Second, if the manufacturers need is a special type of specialized equipment, the supplier does not generally willing to specialize in only a buyer of the product of the investment and production, because this kind of proprietary investment risk is bigger. Therefore, vendors that need this specialized device need to solve the problem of specialized devices within the enterprise. In the end, the manufacturers hire employees with specialized skills, such as specialized product design, cost management, and quality control, and establish long-term contractual relationships with them. This can be more beneficial than buying the corresponding services from other vendors, thereby eliminating or reducing the corresponding transaction costs. This is one of several economic forecasters who will suffer a downturn if voters leave the eu. In the early 20th century, famous American economist elvin fisher developed the theory of economic gain. In its book "the nature of capital and yield", first, the concept of yield is analyzed in terms of the performance of earnings, and three different types of benefits are proposed: Many simple ones that you can start with are painting. Painting can come in a lot of forms. For the really children, they're going to love fingerpainting. Older children will like experimenting with tempra paints. Watercolors make the perfect fit for all ages as they can challenge the advanced artist and so are safe for even the toddlers. The first and foremost task before organizing the is always to resolve some basic questions like discussing the detail in the programme, what activity should be included in the activity, list in the students which will participate in the event, budget from the program. These are the crucial thing which needs to be handled meticulously. The annual day function prevail environmental surroundings of excitement inside school and the scholars take their all effort to generate the annual day an affair to recollect. In this wedding day children’s behave as tons and parents come since the guest.