The economic environment is very important because it affects the success of all businesses. The expansion of the economy makes it easier for businesses to grow and expand their business activities. Also it is the opportunity for all indicators to go in a positive direction. Recession, as a negative business cycle, is a phase in an economy that is not only a threat but also an opportunity. In a market storm, many businesses can make smart investments and acquisitions, also expand their business and exploit the recession in the best way so that during the expansion they have a great wind in the back to continue their business. The importance of the economic environment in master's thesis is analyzed mainly on the example of Crobex10 companies and also on the example of other large Croatian companies. By comparing and analyzing the financial statements and indicators, a good insight into the condition of the company is obtained and based on that, conclusions and estimates for the future are made. Based on the example of Agrokor, besides economic environment, master's thesis also shows the importance of competitiveness. The basis of the thesis is the importance of Crobex10 companies, and through many indicators to show how the economic environment affects their success. In conclusion, the poor performance of the largest companies in the Republic of Croatia creates major problems in the domestic economy.