As both a form of therapy and an exercise in social responsibility I feel it is important to comment on public policy issues falling within my area of expertise. My blog and Twitter feed provide convenient outlets for this. The op-ed pages of newspapers are another.

In 2006, at the invitation of South Africa's Business Day, Matthew Stern and I started Geekonomics, a monthly economic policy commentary. This went on much longer than we had anticipated, but after more than two years of writing we decided to take a break. Nevertheless, the columns have aged well and many of the discussions remain topical.

Here are links to our Geekonomics columns and some other opinion pieces I have done for newspapers in South Africa and Thailand.

Here are links to Geekonomics, a policy commentary written with my DNA Economics colleague Matthew Stern for Business Day, South Africa's leading business and economics newspaper.

South Africa's Electricity Problem (March 2008)

New Year; Simiiar Wishes (Feb. 2008)

Industrial Policy:Local Lessons (Dec. 2007)

South African Procurement Policies (Nov. 2007)

Uses and Abuses of Investment Incentives (Oct. 2007)

A New Industrial Policy Strategy? (Sept. 2007)

Peculiarities of SACU (Aug. 2007)

Learning from SE Asia (July 2007)

A White Elephant IDZ (June 2007)

Improving SA's Anti-Dumping Law (May 2007)

Perversities in Government Procurement (April 2007)

Tax Holidays: Give Them a Vacation The Nation, Bangkok 1996

The Burden of Bailouts The Nation, Bangkok 1998

Thailand's 'IMF Program' The Nation, Bangkok 1999

The Media and Corruption in Thailand The Nation, Bangkok 2001

A Subsidy is a Subsidy Business Day, South Africa 2009