The Economics Network

Improving economics teaching and learning for over 20 years

DeSTRESS Film 17: Turnover and Correlation

Turnover and Correlation (10'28")
This film looks at why some firms grow very large while others stay small, discussing the role of stochastic (chance) processes. It considers the example of Wal-Mart, and the effects of the giant supermarket chain on local economies. The on-screen calculation shows how the Pearson Product-Moment Correlation Coefficient is calculated.

Watch on YouTube | Download (285 MB)

Presented by Ken Heather of the University of Portsmouth and produced by StreamLearn LLC. Published online in 2011

Interview subjects:

  • Gary Becker, Professor of Economics, University of Chicago, Nobel laureate

Related questions

DeSTRESS Project

Except where stated, DeSTRESS resources are available under a Creative Commons Attribution-Noncommerical-ShareAlike licence which guarantees your right to remix and reuse.

Logos remain the property of their respective institutions and organisations, all rights reserved. Takedown policy

DeSTRESS was funded by the Higher Education Academy/ JISC Open Educational Resource programme.

The Higher Education AcademyJISC