The Ricardian equivalence states that the debt and tax financing is equivalent. Say, today's debts will have to be repaid later, which means today's tax cut equals the tax hike tomorrow. Effects on Consumption, Savings, Investment, Interest and Wages?...
The exchange rate is the price at which one currency can be exchanged for another. But purchasing power also plays an important role in the economy. The Big Mac Index measures them....
Companies are fighting for customer attention and market share. For this they have different strategies available. Finally, it has to be said that competition promotes new ideas, products and technologies and therefore it has to be enforced by the state....