In 2000, the market for M&A transactions reached an unexpected peak of approximately US$ 3,500 billion, which was followed by a plunge of approximately 40 percent within a few months (cf. Fig. 1). In the meantime, transaction volume has been increasing again, yet a level similar to the one before the world economic crisis is still in the distant future. Mergers and acquisitions are being carried out with more caution, the number of stock market flotations has been declining, and postponements or even cancellations are not uncommon because of missing interest. All of this indicates that both institutional and strategic investors have become more cautious, and that they are examining their investments for chances and particularly for risks more carefully than in the past.