Ripping off the concept of the “two cows” explanation of economic -isms (see, for example, Wikipedia’s entry of the phenemonen), here is the Jester’s corresponding list for ICT4D…
Computer Science: You have two cows. You connect them to the Internet via wireless networking.
Information Science: You have two cows. You make fun of the computer scientists.
Communication: You have two cows. When will they get mobile phones?
Development Theory: You have two cows. They should be elephants! No, rhinos!
Business: You have two cows. You sell them affordable grass and seek social enterprise venture capital.
Economics: You have two cows. You run a regression and build a model that explains why all mammals have an udder and 4 teats.
Psychology: You have two cows. You build a model that explains undergrads.
Behavioral Economics: You have two cows. You make them play Dictator.
Sociology: You have two cows. There is something between them that cannot be explained by either cow alone.
Anthropology: You have two cows. How can you know that, unless you’ve lived with them for two years?
Political Science: You have two cows. They are evil.
Political Economy: You have two cows. The first one is 1.2 times as evil as the second.
Critical Theory: You have two cows. You are evil.
Agriculture: You have two cows. You feed them Substance X. They produce twice as much milk for a week, and then they die. They produced twice as much milk!
Education: You have two cows. You teach them multiplication without crushing their self-esteem or using numbers.
Public Health: You have two cows. You vaccinate them.
Geography: You have two cows. Gosh, doesn’t anyone care where they’re from?
Design (Old School): You have two cows. Just as long as they look good.
Design (Recent): You have two cows. You do a needs assessment. You discover they need healthcare, education, and jobs. You build a prototype. You do a presentation. Next project!
Human-Computer Interaction: You have two cows. You design them a gadget. They seem to like it. Yay!
Environment: You have two cows. Methane. Cleared forest. Not good.
Media Studies: You have two cows. Fun!
Jeffrey Sachs: You have two cows. With only 6.6 billion more, you could give one to everybody.
William Easterly: You have two cows. Too bad.
Dambisa Moyo: You have two cows. Really, too bad.
Amartya Sen: You have two cows. You educate them and set them free.
Hernan de Soto: You have two cows. Are they registered?
Muhammad Yunus: You have two cows. They don’t need training; they just need credit.
C. K. Prahalad: You have two cows. You sell them cheap grass, become a consultant, and claim you did some good.
Nicholas Negroponte: You have two cows. OLP… C?
The ICT4D Jester 
March 30, 2010 at 11:46 pm
> Nicholas Negroponte: You have two cows. OLPC?
One Laptop Per Cow?
April 7, 2010 at 5:59 am
No one suggests to get your two cows to mate?
August 9, 2010 at 1:25 am
Randomised Control Trial (RCT) folks : You have two cows. You introduce a politically correct mechanism to execute an intervention and find out its effects in a randomized way so that the first cow can say to the second : “I am doing *slightly* better.”