G1 - General Financial MarketsReturn

Results 1 to 3 of 3:

Dlouhá paměť a její vývoj ve výnosech burzovního indexu PX v letech 1997-2009

Long-Term Memory and Its Evolution in Returns of Stock Index PX Between 1997 and 2009

Ladislav Krištoufek

Politická ekonomie 2010, 58(4):471-487 | DOI: 10.18267/j.polek.742

Long-term memory processes have been extensively examined in recent literature as they provide simple way to test for predictabilty in the underlying process. However, most of the literature interprets the results of estimated Hurst exponent simply by its comparison to its asymptotic limit of 0.5. Therefore, we use moving block bootstrap method for rescaled range and periodogram method. In our analysis of evolution of Hurst exponent between 1997 and 2009, we show that PX experienced persistent behavior which weakened in time. Nevertheless, the returns of PX remain close to confidence interval separating independent and persistent behavior.

The failings of legal centralism for helping stock markets in transition

Edward Stringham, Peter Boettke

Politická ekonomie 2006, 54(1):22-34 | DOI: 10.18267/j.polek.543

After Czech voucher privatization many companies simply ignored the interests of their shareholders. The government has since increased the amount of regulation, but they have failed to establish significant investor confidence. This article offers some explanations of why their legal centric approach remains unlikely to create good corporate governance. Mandating that companies maximize shareholder value is easier said than done because it requires government to assess whether companies are making optimal business decisions. In former communist countries especially, government officials are ill suited to make such judgments because they lack the knowledge of how businesses should be properly run. Increased bureaucratic oversight in the Czech Republic has simply burdened markets without any noticeable positive results. This article discusses how good corporate governance can only be a byproduct of markets where managers compete for investors rather than something that can be created by law.

Vazba mezi právem, ekonomií a hospodářstvím

Linkage of law, economics and economy

Lukáš Bortel

Politická ekonomie 2005, 53(5):661-674 | DOI: 10.18267/j.polek.529

The paper deals with an issue of interrelation between law, economics and economy. For a long time, legal science has been interconnected with economics; nonetheless, it was economics which diverted from their mutual cohabitation. At the present time, it is the case of economists who applying their methodology, within law and economics movement in particular, started to bridge that lacuna and enrich legal science and lawmaking processes. This is of a crucial importance, since law shall be regarded as one of the factors which have a capacity to influence the economic output. Therefore, modern regulatory state must ensure a deeper and wider commitment to cost-benefit analysis and assess costs whilst excluding low benefits in legislative processes.