The predictive power of online chatter

This paper describes the need for intangible measurements for non-financial reporting. Nowadays book value accounts for just around one quarter of the market value making the relevance of the balance sheet questionable. There is therefore a need for…

Local Scale Invariance (LSI) is a theory for anisotropic critical phenomena designed in the spirit of conformal invariance. For a given representation of its generators it makes non-trivial predictions about the form of universal scaling functions.…

Regression models are routinely developed and used in aquatic sciences for predictive purposes. Although the traditional measures of predictive power for regression models (r 2 , root mean square error) have well-defined statistical meanings, they…

Using two sets of data, including daily prices (open, close, high and low) of all S&P 500 stocks between 1992 and 1996, we perform a satistical test of the predictive capability of candlestick patterns. Out-of-sample tests indicate statistical…

This paper reexamines the ability of dividend yields to predict long-horizon stock returns. We use the bootstrap methodology, as well as simulations, to examine the distribution of test statistics under the null hypothesis of no forecasting ability.…

When the central region of an obliquely oriented line is bisected by a wide, vertical opaque occluder, observers misperceive the two line segments as being misaligned (the Poggendorff illusion). If the oblique line segment is replaced with a spot…

Abstract: We test whether investment explains the accrual anomaly by decomposing a firm's total accruals into working-capital accruals, long-term investment, and 'nontransaction' accruals, those such as depreciation and asset write-downs that do not…

SUMMARY: The CluSTr database employs a fully automatic single-linkage hierarchical clustering method based on a similarity matrix. In order to compute the matrix, first all-against-all pair-wise comparisons between protein sequences are computed…

In the future, recombinant DNA technology is expected to have a profound impact on medicine's ability to predict or confirm the presence of specific genetic diseases. Lappé explores the implications that this ability holds for society's definition…

The growth of neuroscience from its beginnings as an organically based psychiatry to its current ascendance as the main avenue for understanding the link between behavior and the brain is well presented by Raz and Wolfson. Their analysis of…