finance, which emphasize the extreme volatility and boom-bust dynamics of key time series, such as stock prices, credit, and …

In this paper we show that measures of economic uncertainty (conditional volatility of consumption) predict and are …

variability. We show that financial liberalization is mostly associated with lower consumption growth volatility. Our results are … volatility after equity market openings. The results hold for both total and idiosyncratic consumption growth volatility. We also … find that financial liberalizations are associated with declines in the ratio of consumption growth volatility to GDP …

This paper uses a disaggregated approach to study the volatility of common stocks at the market, industry, and firm … levels. Over the period 1962-97 there has been a noticeable increase in firm-level volatility relative to market volatility …, while the number of stocks needed to achieve a given level of diversification has increased. All the volatility measures …

This paper studies three different measures of monthly stock market volatility: the time-series volatility of daily … market returns within the month; the cross-sectional volatility or 'dispersion' of daily returns on industry portfolios …, within the month. Over the period 1962-97 there has been a noticeable increase in firm-level volatility relative to market …

This paper reviews the literature on idiosyncratic equity volatility since the publication of "Have Individual Stocks …, Gharghori, and Zhong and by Leippold and Svaton, and we present volatility estimates through the end of 2021, significantly … period, idiosyncratic volatility declined thereafter; but sharp increases in market, industry, and idiosyncratic volatility …

Volatility tests are an alternative to regression tests for evaluating the joint null hypothesis of market efficiency … taken to be. By considering tests based on conditional volatility bounds, we show that if the alternative is that one could … conditional volatility tests.If the application is to spot and forward markets, then the most powerful conditional volatility test …