प्रसिद्ध समष्टि आर्थिक कथन, 'पूर्ति अपनी माँग का सृजन स्वयं करती है' (Supply creates its own demand) निम्नलिखित में से किस अर्थशास्त्री से संबंधित है?

In the classical macroeconomic system, the equilibrium real rate of interest is determined by the:

Which of the following statements are characteristic of Classical Economic Theory? (i) Wage rates are flexible in nature. (ii) Supply creates its own demand. (iii) There is a laissez-faire policy leading to full employment. (iv) Interest rate is purely a monetary phenomenon.