Вставьте в предложения слова: economy, economics, economist, economic, to economize, economical. 1. An early definition

1. An early definition (определение) of economics was «an inquiry (изучение) into the nature and causes of the wealth of nations». 2. The national economy is the system of the management and use of resources of a country. 3. You can economize if you compare the prices of goods before buying them. 4. J. M. Keynes was a famous economist. 5. Inflation may cause a bad economical state (положение) in a country. 6. If you\'ve got a large family, it\'s more economic to travel by car than by train.