In many areas of business the use of quantitative methods is helpful for taking rational decisions and reach agreements on future business strategy. This course will give participants a solid background for the use of quantitative methods in business. The course will present how to use the program FORECAST PRO that is a very popular and easy to use software for business forecasting. The course will also present how to use GRETL, an easy to use statistical software useful for the estimation of econometric models. For example, the topics will include the forecasting of sales and costs of firms, and marketing research analysis about the decisions and preferences of clients and related predictions. The later can be used to design promotion strategies focusing on a certain types of potential clients. The course will be the solution of set of case studies. No preliminary knowledge on statistics or econometrics is required for this course. There will be no exam in this course. Practical work on classes is emphasized. Participants may miss up to three classes from the ten.