Search Results - "Scalas, Enrico"
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1
The application of continuous-time random walks in finance and economics
Published in Physica A (01-04-2006)“…This paper reviews some applications of continuous time random walks (CTRWs) to Finance and Economics. It is divided into two parts. The first part deals with…”
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2
Fat tails in financial return distributions revisited: Evidence from the Korean stock market
Published in Physica A (15-07-2019)“…This study empirically re-examines fat tails in stock return distributions by applying statistical methods to an extensive dataset taken from the Korean stock…”
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3
An empirical data analysis of “price runs” in daily financial indices: Dynamically assessing market geometric distributional behavior
Published in PloS one (07-07-2022)“…In financial time series there are time periods in which market indices values or assets prices increase or decrease monotonically. We call those events “price…”
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Limitations of portfolio diversification through fat tails of the return Distributions: Some empirical evidence
Published in The North American journal of economics and finance (01-04-2021)“…•This study investigates the risk property in fat tails of the return distribution.•Fat-tails are not eliminated through portfolio diversification.•Fat-tails…”
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5
Full characterization of the fractional Poisson process
Published in Europhysics letters (01-10-2011)“…The fractional Poisson process (FPP) is a counting process with independent and identically distributed inter-event times following the Mittag-Leffler…”
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6
Ergodic transition in a simple model of the continuous double auction
Published in PloS one (18-02-2014)“…We study a phenomenological model for the continuous double auction, whose aggregate order process is equivalent to two independent M/M/1 queues. The…”
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7
Mixtures of compound Poisson processes as models of tick-by-tick financial data
Published in Chaos, solitons and fractals (01-10-2007)“…A model for the phenomenological description of tick-by-tick share prices in a stock exchange is introduced. It is based on mixtures of compound Poisson…”
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8
Statistical Analysis and Agent-Based Microstructure Modeling of High-Frequency Financial Trading
Published in IEEE journal of selected topics in signal processing (01-08-2012)“…A simulation of high-frequency market data is performed with the Genoa Artificial Stock Market. Heterogeneous agents trade a risky asset in exchange for cash…”
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9
The distribution of first-passage times and durations in FOREX and future markets
Published in Physica A (15-07-2009)“…Possible distributions are discussed for intertrade durations and first-passage processes in financial markets. The view-point of renewal theory is assumed. In…”
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10
Monte Carlo simulation of uncoupled continuous-time random walks yielding a stochastic solution of the space-time fractional diffusion equation
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (01-02-2008)“…We present a numerical method for the Monte Carlo simulation of uncoupled continuous-time random walks with a Lévy alpha -stable distribution of jumps in space…”
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11
Semi-Markov graph dynamics
Published in PloS one (24-08-2011)“…In this paper, we outline a model of graph (or network) dynamics based on two ingredients. The first ingredient is a Markov chain on the space of possible…”
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12
Continuous-time statistics and generalized relaxation equations
Published in The European physical journal. B, Condensed matter physics (01-11-2017)“…Using two simple examples, the continuous-time random walk as well as a two state Markov chain, the relation between generalized anomalous relaxation equations…”
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13
Random exchange models and the distribution of wealth
Published in The European physical journal. ST, Special topics (01-12-2016)“…I am presenting my personal point of view on what is interesting in Econophysics. In particular, I focus on random exchange models for the distribution of…”
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14
Fine structure of spectral properties for random correlation matrices: an application to financial markets
Published in Physical review. E, Statistical, nonlinear, and soft matter physics (29-07-2011)“…We study some properties of eigenvalue spectra of financial correlation matrices. In particular, we investigate the nature of the large eigenvalue bulks which…”
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15
A Dynamic Probabilistic Version of the Aoki-Yoshikawa Sectoral Productivity Model
Published in Economics. The open-access, open-assessment e-journal (01-12-2009)“…In this paper, the authors explore a dynamical version of the Aoki and Yoshikawa model (AYM) for an economy driven by demand. They show that when an…”
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A generalization of the space-fractional Poisson process and its connection to some Lévy processes
Published in Electronic communications in probability (01-01-2016)Get full text
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17
Coupled continuous time random walks in finance
Published in Physica A (01-10-2006)“…Continuous time random walks (CTRWs) are used in physics to model anomalous diffusion, by incorporating a random waiting time between particle jumps. In…”
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18
Parameter Estimation for the Fractional Hawkes Process
Published in Journal of agricultural, biological, and environmental statistics (08-11-2024)Get full text
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Fractional non-homogeneous Poisson and Pólya-Aeppli processes of order k and beyond
Published in Communications in statistics. Theory and methods (18-04-2023)“…We introduce two classes of point processes: a fractional non-homogeneous Poisson process of order k and a fractional non-homogeneous Pólya-Aeppli process of…”
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Dialects of Madagascar
Published in PloS one (02-10-2020)“…All results in this paper are based upon a new dataset consisting in 60 Swadesh lists of 207 items, overall 12,420 terms collected during 2018-2019. Each list…”
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