The real estate market of EU countries has undergone a severe global financial crisis 2008-2009, recovered successfully later, and now experiencing significant uncertainty due to the COVID-19 pandemic event. Significant volatility of the real estate business is once again evident, just as it was...

We introduce an ensemble learning method for dynamic portfolio valuation and risk management building on regression trees. We learn the dynamic value process of a derivative portfolio from a finite sample of its cumulative cash flow. The estimator is given in closed form. The method is fast and...

1. Introduction -- 2. Fundamental Risk Factors of Financial Markets -- 3. Financial Instruments: A System of Derivatives and Underlyings -- 4. Overview of the Assumptions -- 5. Present Value Methods, Yields and Traditional Risk Measures -- 6. Arbitrage -- 7. The Black-Scholes Differential...