The economical global crisis, that we still live nowadays, that began with the Lehman Brother's bankruptcy, one of the biggest financial institutions of the world, in 15th of September of 2008, and that took a lot of many others financial institutions to bankruptcy, beginning to be the major bankruptcy company in the United States of America, and transforming it in one of the biggest economical crisis worldwide, affecting the European market as well as the Portuguese one. Many and different were the studies related to the resolution of the problem of the crisis, as in a Macroeconomical way, as Microeconomical, being some people more defenders of the austerity policies and, in the other hand, others more defenders in politics more offensive and defending that investments should be made. In this work, our focus was on the Portuguese market and, by comparing many studies, as well as analyzing concrete data about this subject, our aim was showing the proper methodology, in a businessperspective, to fight the crisis. If the most appropriate strategy is austerity or, if in the other hand, we should invest.