Why might classicalists could be considered to be supply-siders? Oa. For classical economists, the key factor is competition. Since the number of sellers is non-price determinant of supply, they're considered supply-siders. Ob. Classical economists think government spending and regular boosts to minimum wage are key. Oc. Classical economists prefer big government, which often leads to greater aggregate supply Od. Classical economists tout the importance of buying power and rising aggregate income, therefore supply expands.