Twitter: big data opportunities--response

Affiliations

• ¹ Lazer Laboratory, Northeastern University, Boston, MA 02115, USA. Harvard Kennedy School, Harvard University, Cambridge, MA 02138, USA. d.lazer@neu.edu.
• ² Lazer Laboratory, Northeastern University, Boston, MA 02115, USA. Institute for Quantitative Social Science, Harvard University, Cambridge, MA 02138, USA. University of Houston, Houston, TX 77204, USA.
• ³ Institute for Quantitative Social Science, Harvard University, Cambridge, MA 02138, USA.
• ⁴ Laboratory for the Modeling of Biological and Sociotechnical Systems, Northeastern University, Boston, MA 02115, USA. Institute for Scientific Interchange Foundation, Turin, Italy. Institute for Quantitative Social Science, Harvard University, Cambridge, MA 02138, USA.