
handle: 10419/68551
This paper uses the multiple variance ratio test procedure developed by Chow and Denning (1993) to test for a random walk of stock returns on the Austrian Stock Exchange. I find that with daily data the test rejects the random walk hypothesis at all conventional significance levels for each and every title and for both indeces tested. Individual shares, however, do seem to follow a random walk when weekly returns are considered, while the hypothesis is rejected for both indices.
Dieser Artikel überprüft die Random Walk Hypothese mittels des von Chow und Denning (1993) entwickelten Variance Ratio Tests auf dem österreichischen Aktienmarkt. Tägliche Renditen folgen keinem Random Walk. Die Nullhypothese wird für jede Aktie auf allen üblichen Signifikanzniveaus abgelehnt. Wöchentliche Renditen scheinen eher einem Random Walk zu folgen, während bei wöchentlichen Renditen der Indizes die Nullhypothese ebenfalls abgelehnt werden kann.
ddc:330, G14, jel: jel:G14
ddc:330, G14, jel: jel:G14
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