Ключевые слова: analysis, arrow, business, closeup, convex lens, descending, downtrend, economy, examine, experiment, fall, glass, glass lens, go down, graph, graphic, information, internet, investment, lens, line chart, loupe, magnification, magnifying glass, material, optics, recession, reflection, research, science, search, securities, stock, stock market, stock price, stock price decline, survey, vector data, vector image, vector material, view,