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Showing 1 to 12 of 21 entries
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Scaling of the distribution of fluctuations of financial market indices.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Gopikrishnan P, Plerou V, Nunes Amaral LA, Meyer M, Stanley HE.
PMID: 11970400
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Nov;60(5):5305-16. doi: 10.1103/physreve.60.5305.

We study the distribution of fluctuations of the S&P 500 index over a time scale deltat by analyzing three distinct databases. Database (i) contains approximately 1 200 000 records, sampled at 1-min intervals, for the 13-year period 1984-1996, database...

Quantifying and interpreting collective behavior in financial markets.

Physical review. E, Statistical, nonlinear, and soft matter physics

Gopikrishnan P, Rosenow B, Plerou V, Stanley HE.
PMID: 11580379
Phys Rev E Stat Nonlin Soft Matter Phys. 2001 Sep;64(3):035106. doi: 10.1103/PhysRevE.64.035106. Epub 2001 Aug 30.

Firms having similar business activities are correlated. We analyze two different cross-correlation matrices C constructed from (i) 30-min price fluctuations of 1000 US stocks for the two-year period 1994-95 and (ii) one-day price fluctuations of 422 US stocks for...

Quantifying stock-price response to demand fluctuations.

Physical review. E, Statistical, nonlinear, and soft matter physics

Plerou V, Gopikrishnan P, Gabaix X, Stanley HE.
PMID: 12241320
Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Aug;66(2):027104. doi: 10.1103/PhysRevE.66.027104. Epub 2002 Aug 26.

We empirically address the question of how stock prices respond to changes in demand. We quantify the relations between price change G over a time interval Deltat and two different measures of demand fluctuations: (a) Phi, defined as the...

A theory of power-law distributions in financial market fluctuations.

Nature

Gabaix X, Gopikrishnan P, Plerou V, Stanley HE.
PMID: 12748636
Nature. 2003 May 15;423(6937):267-70. doi: 10.1038/nature01624.

Insights into the dynamics of a complex system are often gained by focusing on large fluctuations. For the financial system, huge databases now exist that facilitate the analysis of large fluctuations and the characterization of their statistical behaviour. Power...

Scaling of the distribution of price fluctuations of individual companies.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Plerou V, Gopikrishnan P, Nunes Amaral LA, Meyer M, Stanley HE.
PMID: 11970569
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Dec;60(6):6519-29. doi: 10.1103/physreve.60.6519.

We present a phenomenological study of stock price fluctuations of individual companies. We systematically analyze two different databases covering securities from the three major U.S. stock markets: (a) the New York Stock Exchange, (b) the American Stock Exchange, and...

Quantifying fluctuations in market liquidity: analysis of the bid-ask spread.

Physical review. E, Statistical, nonlinear, and soft matter physics

Plerou V, Gopikrishnan P, Stanley HE.
PMID: 15903750
Phys Rev E Stat Nonlin Soft Matter Phys. 2005 Apr;71(4):046131. doi: 10.1103/PhysRevE.71.046131. Epub 2005 Apr 22.

Quantifying the statistical features of the bid-ask spread offers the possibility of understanding some aspects of market liquidity. Using quote data for the 116 most frequently traded stocks on the New York Stock Exchange over the two-year period 1994-1995,...

Tests of scaling and universality of the distributions of trade size and share volume: evidence from three distinct markets.

Physical review. E, Statistical, nonlinear, and soft matter physics

Plerou V, Stanley HE.
PMID: 17995062
Phys Rev E Stat Nonlin Soft Matter Phys. 2007 Oct;76(4):046109. doi: 10.1103/PhysRevE.76.046109. Epub 2007 Oct 12.

Empirical evidence for scale-invariant distributions in financial data has attracted the research interest of physicists. While the power-law tails of the distribution of stock returns P{R>x} approximately x;{-zeta_{R}} are becoming increasingly well documented, less understood are the statistics of...

Effect of Denosumab on Bone Mineral Density and Markers of Bone Turnover among Postmenopausal Women with Osteoporosis.

Journal of osteoporosis

Sánchez A, Brun LR, Salerni H, Costanzo PR, González D, Bagur A, Oliveri B, Zanchetta MB, Farías V, Maffei L, Premrou V, Mansur JL, Larroudé MS, Sarli MA, Rey P, Ulla MR, Pavlove MM, Karlsbrum S, Brance ML.
PMID: 27579211
J Osteoporos. 2016;2016:8738959. doi: 10.1155/2016/8738959. Epub 2016 Aug 08.

The aim of this study was to evaluate the effect of denosumab (Dmab) on bone mineral density (BMD) and bone turnover markers after 1 year of treatment. Additionally, the effect of Dmab in bisphosphonate-naïve patients (BP-naïve) compared to patients...

Stock return distributions: tests of scaling and universality from three distinct stock markets.

Physical review. E, Statistical, nonlinear, and soft matter physics

Plerou V, Stanley HE.
PMID: 18517560
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Mar;77(3):037101. doi: 10.1103/PhysRevE.77.037101. Epub 2008 Mar 19.

We examine the validity of the power-law tails of the distributions of stock returns P{R>x} ~ x(-zeta(R)) using trade-by-trade data from three distinct markets. We find that both the negative as well as the positive tails of the distributions...

Econophysics: Two-phase behaviour of financial markets.

Nature

Plerou V, Gopikrishnan P, Stanley HE.
PMID: 12520293
Nature. 2003 Jan 09;421(6919):130. doi: 10.1038/421130a.

No abstract available.

Strontium ranelate effect on bone mineral density is modified by previous bisphosphonate treatment.

SpringerPlus

Brun LR, Galich AM, Vega E, Salerni H, Maffei L, Premrou V, Costanzo PR, Sarli MA, Rey P, Larroudé MS, Moggia MS, Brance ML, Sánchez A.
PMID: 25520906
Springerplus. 2014 Nov 18;3:676. doi: 10.1186/2193-1801-3-676. eCollection 2014.

The aim of this study was to evaluate the effect of strontium ranelate (SrR) on bone mineral density (BMD) and bone turnover markers after 1 year of treatment. Additionally, the effect of SrR in bisphosphonate-naïve patients (BP-naïve) compared to...

CO.

The Science of the total environment

Premrov A, Wilson D, Saunders M, Yeluripati J, Renou-Wilson F.
PMID: 33254846
Sci Total Environ. 2021 Feb 01;754:142433. doi: 10.1016/j.scitotenv.2020.142433. Epub 2020 Sep 21.

The ability of peatlands to remove and store atmospheric carbon (C) depends on the drainage characteristics, which can be challenging to accommodate in biogeochemical models. Many studies indicate that restoration (by rewetting) of damaged peatlands can re-establish their capacity...

Showing 1 to 12 of 21 entries