Each of these is the addition of somewhere between a sentence and a few paragraphs of content, rather than a major overhaul or expansion.
- Wildfire (expanded) - Good Article (reassessed and kept July 6, after student work)
- Coase theorem (expanded) - C (June 7, after student work)
- Utility-possibility frontier (expanded) - Stub (April 19, after student work)
- Driving under the influence (additions reverted)
- Government budget deficit (expanded) - Start (pre-2011)
- Organ donation (expanded) - B (pre-2011, but can't have risen without a GA review)
- Corporate tax in the United States (additions reverted)
- Student financial aid in the United States (expanded) - Start (pre-2011)
- Substitute good (expanded) - Start (pre-2011, but unlikely to be higher)
- Externality (expanded) - Start (pre-2011)
- Unemployment benefits (expanded) - C (July 31, after student work)
- Median voter theorem (expanded) - Start (pre-2011, but unlikely to be higher)
- Experience rating (expanded) - Stub (August 1, after student work)
- Social Security (United States) (expanded) - B (pre-2011, but can't have risen without a GA review)
- Incarceration in the United States (expanded) - B (pre-2011, but can't have risen without a GA review)
- Agricultural subsidy (expanded) - Start (pre-2011)
- Emissions trading (expanded) - B (pre-2011, but can't have risen without a GA review)
- Issues relating to biofuels (expanded) - Start (pre-2011)
- Food vs. fuel (expanded) - B (pre-2011, but can't have risen without a GA review)
- Illegal immigration to the United States (expanded) - B (pre-2011, but can't have risen without a GA review)
- PILOT (finance) (expanded) - Start (pre-2011, but unlikely to be higher)
- Municipal wireless network (expanded) - C (29 July). Note: only one student edit (which doesn't help the article)
- Knowledge spillover (expanded) - Stub (pre-2011)
- Redistribution of wealth (expanded) - Start (pre-2011)
- Gambling in Russia (expanded) - Start (pre-2011)
- School voucher (additions reverted)
- Economic sanctions (expanded) - Start (pre-2011, but unlikely to be higher)