Key points are not available for this paper at this time.
Click to increase image sizeClick to decrease image size Notes 1. See the video here: https: //www. youtube. com/watch? v = go2bVGi0ReE 2. See here: http: //www. rethinkecon. co. uk/ 3. See here: http: //www. nytimes. com/2013/04/19/opinion/krugman-the-excel-depression. html? ᵣ = 0
Kean Birch (2014) studied this question.