Showing 1 - 10 of 28
Political stock markets (PSM) are sometimes seen as substitutes for opinion polls. On the bases of a behavioral model, specific preconditions were drawn out under which manipulation in PSM can weaken this argument. Evidence for manipulation is reported from the data of two separate PSM during...
Persistent link: https://www.econbiz.de/10009614875
According to the Sharpe-Lintner capital asset pricing model, expected rates of return on individual stocks differ only because of their different levels of non-diversifiable risk (beta). However, Fama/French (1992) show that the two variables size and book-to-market ratio capture the...
Persistent link: https://www.econbiz.de/10009661022
The so-called 'Monday effect ' has been found for various stock markets of the world. The empirical finding that Monday returns are significantly smaller than returns measured for the remaining days of the week calls the efficiency hypothesis for pricing processes operating on stock markets into...
Persistent link: https://www.econbiz.de/10009580468
We consider a financial market model with interacting agents and study the long run behaviour of both aggregate behaviour and equilibrium prices. Investors are heterogeneous in their price expectations and they get stochastic signals about the "mood" of the market described by the empirical...
Persistent link: https://www.econbiz.de/10009582400
We consider a financial market model with a large number of interacting agents. Investors are heterogeneous in their expectations about the future evolution of an asset price process. Their current expectation is based on the previous states of their "neighbors" and on a random signal about the...
Persistent link: https://www.econbiz.de/10009613599
The third generation UMTS auction in Germany raised an enormous amount of revenue, and at the same time achieved a more … competitive market structure than other UMTS auctions in Europe. The present paper explains the design of that auction, and … presents a game theoretic explanation of observed events during the crucial phase of that auction, which have puzzled several …
Persistent link: https://www.econbiz.de/10009615427
considerations. It addresses the problems of finding the auction that yields the greatest expected revenues to the auctioneer and …) auctions are analysed. The analysis focuses on the strategic aspect of the bidding process, i.e. the game-theoretic auction …
Persistent link: https://www.econbiz.de/10009612051
This paper gives an account of events, and explains some systematic reasons of the UMTS auction flop in Switzerland …. Apart from general market developments, which could not have been anticipated, we argue that auction design which was … to import some key ingredients of the auction design employed in Germany and Austria. This would have assured higher …
Persistent link: https://www.econbiz.de/10009614291
In a meta study of 25 political stock markets conducted in Germany in the last decade we analyze their predictive success. Although the predictions of political stock markets are highly correlated with the corresponding polls, the markets are able to aggregate additional information. One...
Persistent link: https://www.econbiz.de/10009614879
This article studies the design of optimal mechanisms to regulate entry in natural oligopoly markets, assuming the regulator is unable to control the behavior of firms once they are in the market. We adapt the Clarke-Groves mechanism, characterize the optimal mechanism that maximizes the...
Persistent link: https://www.econbiz.de/10009583432