325 citations · 830 across the 4 of their papers we have counts for
5 papers
The Area and Population of Cities: New Insights from a Different Perspective on Cities
Hernan Rozenfeld, Diego Rybski, Xavier Gabaix +1
The distribution of the population of cities has attracted a great deal of attention, in part because it sharply constrains models of local growth. However, to this day, there is n…
On the Origin of Power-Law Fluctuations in Stock Prices
Vasiliki Plerou, Parameswaran Gopikrishnan, Xavier Gabaix +1
We respond to the issues discussed by Farmer and Lillo (FL) related to our proposed approach to understanding the origin of power-law distributions in stock price fluctuations. Fir…
Quantifying Stock Price Response to Demand Fluctuations
Vasiliki Plerou, Parameswaran Gopikrishnan, Xavier Gabaix +1
We address the question of how stock prices respond to changes in demand. We quantify the relations between price change over a time interval and two different measures of…
Statistical Properties of Share Volume Traded in Financial Markets
Parameswaran Gopikrishnan, Vasiliki Plerou, Xavier Gabaix +1
We quantitatively investigate the ideas behind the often-expressed adage `it takes volume to move stock prices', and study the statistical properties of the number of shares traded…
Economic Fluctuations and Diffusion
Vasiliki Plerou, Parameswaran Gopikrishnan, Luis. A. Nunes Amaral +2
Stock price changes occur through transactions, just as diffusion in physical systems occurs through molecular collisions. We systematically explore this analogy and quantify the r…