Based on what we have discussed so far, it seems that there is a lot of variation around the world in terms of income, wealth, education, health status, and many other characteristics. And these characteristics seem to be related with one another. For example, people from wealthier countries tend to live longer. In this project, you are asked to use international data to empirically investigate the relationship between income and health status. The following sections provide a general description of this project and raise questions that you need to answer.