Ключевые слова: analysis, analyze, background, balance, benefit, best, business, buy, cash, cheap, choice, choose, commerce, compare, comparison, concept, contrast, cost, customer, economy, finance, financial, idea, investment, low, management, market, marketing, measure, measurement, money, plan, price, product, profit, purchase, quality, return, roi, strategy, success, symbol, text, valuable, value, versus, vs, white, word, worth,