Input-output analysis is probably the most practical tool of economic analysis. It is the main tool to help us answer three key questions that pertain to the whole economic system. In terms of efficiency and productivity growth, whats the performance of an economy? What is the comparative advantage of an economy compared with the rest of the world? How do policies and measures affect the whole economic system when environmental constrains are taken into account? Of course, many other interesting questions can be posed. The first three chapters in this book introduce three important...