How do business firms operate? And how do the basic tools of macroeconomic management affect their operations? These are but a few of the questions addressed by the MIT course "Applied Macro- and International Economics". The course was recently placed online as part of the OpenCourseWare initiative, and the materials are from the version taught in the spring of 2011 by Professors Robert Rigobon and Alberto Cavallo. On the site, visitors will find select lecture notes from the course, along with the assignments, and a list of the readings. The notes here include explorations of topics such as "World through inflation", "Exchange-rate regimes", and "Central bank accounting". Visitors can also download all of the materials here in one fell swoop via the "Download Course Materials" link.