Results 221 to 230 of about 191,353 (267)
Some of the next articles are maybe not open access.
Is the Stock Market Efficient?
Science, 1989A stock market is said to be efficient if it accurately reflects all relevant information in determining security prices. Critics have asserted that share prices are far too volatile to be explained by changes in objective economic events—the October 1987 crash being a case in point. Although the evidence is not unambiguous, reports of the death of the
openaire +2 more sources
Measuring and Monitoring the Efficiency of Markets
SSRN Electronic Journal, 2017Market efficiency is measured by arbitrage proximity. The level of efficiency is calibrated by extent of a distortion of probability required to neutralize the drift. Simulations of bilateral gamma models estimated from past returns deliver for each asset on each day an empirical acceptability index.
Madan, Dilip B. +2 more
openaire +2 more sources
1987
A capital market is said to be efficient if it fully and correctly reflects all relevant information in determining security prices. Formally, the market is said to be efficient with respect to some information set, ϕ, if security prices would be unaffected by revealing that information to all participants.
openaire +1 more source
A capital market is said to be efficient if it fully and correctly reflects all relevant information in determining security prices. Formally, the market is said to be efficient with respect to some information set, ϕ, if security prices would be unaffected by revealing that information to all participants.
openaire +1 more source
Market "Efficiency" in a Market with Heterogeneous Information
Journal of Political Economy, 1978It is commonly felt that a financial market achieves informational efficiency as traders with the best information and the most skill make profits at the expense of those with inferior information or ability and come to dominate the market. This paper develops a model of a speculative market in which this redistribution of wealth among traders with ...
openaire +1 more source
Are Cryptocurrency Markets, Efficient Markets?
SSRN Electronic Journal, 2020This paper examines the market efficiency of three key cryptocurrency markets namely: Bitcoin, Ethereum and Monero, before and during the COVID-19 pandemic. This research makes use of a Durbin-Watson test and a non-parametric runs test to test for weak-form efficiency, and two comprehensive event studies to test for semi-strong form and strong form ...
openaire +1 more source
The Accounting Review, 1981
Abstract ABSTRACT: Efficient market research arose in response to allegations from the professional investment community and critics of financial accounting, and it preceded a formal, conceptual development of market efficiency. Several ambiguities exist with respect to previous definitions of market efficiency.
openaire +1 more source
Abstract ABSTRACT: Efficient market research arose in response to allegations from the professional investment community and critics of financial accounting, and it preceded a formal, conceptual development of market efficiency. Several ambiguities exist with respect to previous definitions of market efficiency.
openaire +1 more source
Market Efficiency and Stock Market
2019This study examines the concept of variable efficiency (time-varying levels of efficiency) and time-varying return predictability in the Indian stock market, which are the implications of Adaptive Markets Hypothesis (AMH). We apply linear tests to examine the time-varying dependence in two different indices of the Bombay Stock Exchange (BSE) in India ...
openaire +1 more source
2016
How well do market economies deal with environmental problems? One school of thought holds that government regulation is costly and intrusive, hindering innovation and economic growth. Conservative talk radio host Rush Limbaugh captured this sentiment when he wrote, “The key to cleaning up the environment is unfettered free enterprise.
Nathaniel O. Keohane, Sheila M. Olmstead
openaire +1 more source
How well do market economies deal with environmental problems? One school of thought holds that government regulation is costly and intrusive, hindering innovation and economic growth. Conservative talk radio host Rush Limbaugh captured this sentiment when he wrote, “The key to cleaning up the environment is unfettered free enterprise.
Nathaniel O. Keohane, Sheila M. Olmstead
openaire +1 more source
2017
Assuming efficient markets in economics is a bit like neglecting air resistance in physics. It allows developing beautiful models and using powerful mathematical techniques, but the simple fact that there is air everywhere around us (otherwise, we could not live) or that actual markets exhibit all kinds of imperfections is not enough to discard such ...
openaire +1 more source
Assuming efficient markets in economics is a bit like neglecting air resistance in physics. It allows developing beautiful models and using powerful mathematical techniques, but the simple fact that there is air everywhere around us (otherwise, we could not live) or that actual markets exhibit all kinds of imperfections is not enough to discard such ...
openaire +1 more source