"The recent financial crisis has demonstrated the dangers of ignoring the factors that led to previous crises, and the effectiveness of the policies designed to deal with them. Over time, these macroeconomic policies have evolved, oscillating between state intervention and a free-market...

Introduction -- Theories -- Optimal growth theory revisited -- Continuous-time modelling -- Demand factors and GDP growth -- Lamp & banks balance sheet constraints -- Secular stagnation -- Policies -- Public finance and inflation -- Government budget constraints -- Productivity as an...