As with all markets and their economies, balance is one of the key factors of a successful system. While most markets do not reach equilibrium, they try to get close. There are numerous methods designed to achieve balance, whether they involve direct human intervention or a cumulative decision of all factors involved. These factors may be the seller's desire to reduce overall revenue or the buyer's desire to retain some of the demand for a particular product. Of course, the basics of supply and demand retrospectively control the equilibrium in the market. Supply and demand are one of the simplest aspects of an economy and its study, but nevertheless they represent the greatest challenge for analysts. Even though most events can be calculated mathematically to perfection, the human aspect always intervenes and misleads the calculation. Dealing with the imperfections of psychology differentiates a modern analyst with initiative versus one who follows an equation. With supply alone, the factors involved in regulating supply also control some aspects of demand. Things like production costs and desired net profit can determine whether or not a business is successful. Having a balance between quantity and price is the most control any business can have. Price is obviously one of the most beneficial, or destructive, parts of a business. Price is the first and most valuable thing an individual will look at, which will override most other judgments based on quality and detail. Balancing the price, however, helps create a pristine product, with the right amount of detail that will feed the market, while still generating a steady net income. When dealing with the demand, supply aspects......paper......retrospective revenue of the company, making the minimum price incapable of increasing revenue, which is the goal since from the beginning. The most common, and now widely used, method is to provide subsidies to both the buyer and seller. The subsidy involves refunding a portion of the payment to the customer to provide reassurance to the government in its actions, as well as pushing them to buy more. Although this causes the seller to initially lose money due to the low price, a percentage of the subsidy fund goes to the seller to continue production. This gives the seller extra profit, as well as bringing customers back to him. An example is the modern solar panel industry, where part of the investment is borne by the government. Customers do not initially pay as much for solar panels, but their referrals and even repetitive use generate more profit for the seller.