VD-hybris i samband med företagsförvärv: en studie på den svenska marknaden

Sammanfattning: In this study, we examine the presence and consequences of CEO overconfidence in the Swedish market. We identify overconfidence with two insider-trading based measures and find that overconfidence is apparent among one third of CEOs in companies listed on the Swedish stock market. We also find that these CEOs are more prone to carry out acquisitions, as the probability of conducting an acquisition increases by 27 % if the CEO is overconfident. However, we do not find evidence that acquisitions by overconfident CEOs are more value-destroying. This finding contradicts results from previous studies conducted on Anglo-Saxon markets that suggest that overconfidence has a negative impact on the value-creation in acquisitions. Thus, our results suggest that the consequences of overconfidence regarding value-creation differ across markets.