For an investor, "A Diplomat plays the Stock Market" contributes to the understanding of what is going on in the world. It offers a set of concepts borrowed from different disciplines to help develop one´s own perspective, establishing a context in which decisions can be taken.For international relations practitioners, including diplomats and analysts, this book presents a probabilistic approach to geopolitical events, with concepts such as non-stationary system, Heisenberg´s uncertainty principle, power-law distribution, and black swan, which will enrich their repertoire.The author uses his dual background as a diplomat and an investor to lay bridges among different disciplines, particularly International Relations and Finance. The result is an original and thought-provoking perspective on history and the contemporary world.