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random walk theory

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00:54 Oct 19, 2020
English to Czech translations [PRO]
Bus/Financial - Economics
Additional field(s): Business/Commerce (general), Economics, Finance (general), Investment / Securities, Mathematics & Statistics
English term or phrase: random walk theory
Definition from The Economist:
Also random walk hypothesis. Impossible to predict the next step. efficient market theory says that the prices of many financial assets, such as shares, follow a random walk. In other words, there is no way of knowing whether the next change in the price will be up or down, or by how much it will rise or fall. The reason is that in an efficient market, all the information that would allow an investor to predict the next price move is already reflected in the current price. This belief has led some economists to argue that investors cannot consistently outperform the market. But some economists argue that asset prices are predictable (they follow a non-random walk) and that markets are not efficient.

Example sentence(s):
  • The most well-known practical example of random walk theory occurred in 1988 when the Wall Street Journal sought to test Malkiel's theory by creating the annual Wall Street Journal Dartboard Contest, pitting professional investors against darts for stock-picking supremacy. Investopedia
  • The random walk hypothesis has merit in dissuading investors from trying to make guesses about short-term stock movements. However, many long-term investors still manage to invest well by putting time on their side. The Motley Fool
  • Malkiel and the random walk theory provide considerable support to the intimidated individual investor, but Malkiel in particular encourages investors to understand the theories and investment methods that the random walk theory challenges. Investing Answers
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Question posted on behalf of translation team:
GBK economics and finances specialistsGBK economics and finances specialists


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Summary of translations provided
4náhodná procházka
Martin Janda
4opilcova metoda
katerina beckova


  

Translations offered


5 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5
náhodná procházka


Definition from own experience or research:
Také opilcova chůze. Teorie trhu, která říká, že ceny mnoha finančních aktiv, např. akcií, se pohybují podle náhodných kroků, takže další krok nelze předvídat.

Example sentence(s):
  • Náhodná procházka (Random walk) Ekonomická teorie efektních trhů, která je založena na předpokladu, že mezi cenovými změnami neexistuje žádný vzájemný vztah a cenové změny jsou náhodné. Tato teorie neumí vysvětlit, proč vznikají dlouhodobé cenové rostoucí, nebo klesající trendy, ani jak je možné, že existují obchodníci, kteří pravidelně na trhu vydělávají, např. Warren Buffett. - fxstreet.cz  
  • Předně je mi jasné, že princip náhodné procházky nemá prakticky nic společného s tradingem a je to čistý hazard. Neberu to ani jako cestu jak "přechytračit trhy" a profitovat naprosto bez práce. - financnik.cz  
Martin Janda
Czech Republic
Local time: 12:08
Native speaker of: Native in CzechCzech
PRO pts in category: 36
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10 days   confidence: Answerer confidence 4/5Answerer confidence 4/5
opilcova metoda


Definition from CVUT - matematika:
Opilcova metoda je formalizace intuitivní myšlenky provádění náhodných kroků.

Example sentence(s):
  • Opilcova metoda se v matematice a fyzice používá ke generování náhodných kroků. - CVUT - matematika 
katerina beckova
Local time: 12:08
Native speaker of: Native in CzechCzech
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