The Ice Cream Extremists of Differences-In-Differences is a mammoth, socially progressive nation, ruled by Econometrica with a fair hand, and notable for its complete lack of prisons, sprawling nuclear power plants, and multi-spousal wedding ceremonies. The compassionate, hard-working, democratic, cheerful population of 5.824 billion Differences-In-Differencesians hold their civil and political rights very dear, although the wealthy and those in business tend to be viewed with suspicion.

The relatively small, liberal government prioritizes Education, although Administration, Industry, and Environment are also considered important, while Spirituality and Defense are ignored. It meets to discuss matters of state in the capital city of SUTVA Town. The average income tax rate is 36.1%, but much higher for the wealthy.

The frighteningly efficient Differences-In-Differencesian economy, worth a remarkable 1,111 trillion Average Treatment Effects a year, is led by the Information Technology industry, with significant contributions from Tourism, Retail, and Book Publishing. Average income is an impressive 190,784 Average Treatment Effects, and evenly distributed, with the richest citizens earning only 2.9 times as much as the poorest.

The ongoing space elevator construction project has elevated the national debt to all new levels, the government response to disaster victims starving for bread is "let them eat stale cake", foreign 'investors' have been taking a great interest in the new secret shuttle, and Econometrica affectionately nicknames supporters by number. Crime is totally unknown. Differences-In-Differences's national animal is the Instrumental Variable, which is also the nation's favorite main course, and its national religion is Peer Review.

Differences-In-Differences is ranked 7,820^th in the world and 197^th in the South Pacific for Largest Publishing Industry, scoring 13,504 on the Bella Potter Productivity e-Index.