The aim of the course is to give the incoming Master students in Economics the necessary mathematical and statistical skills to begin the core first-year courses. We will go over basic matrix algebra, analysis, optimisation, probability and statistics. An introduction to the different software needed, such as LateX and Stata, will also be given. This four-week course consists of daily lectures and problem-solving sessions designed to bring students from heterogeneous academic backgrounds up to speed in terms of the quantitative methods used in economics.