The Mummy knows best of McMasterdonia is a gargantuan, genial nation, ruled by The Queen Mother with an iron fist, and renowned for its ubiquitous missile silos, rampant corporate plagiarism, and absence of drug laws. The compassionate, cynical, humorless population of 27.826 billion McMasterdonians are ruled with an iron fist by the dictatorship government, which ensures that no-one outside the party gets too rich. In their personal lives, however, citizens are relatively unoppressed; it remains to be seen whether this is because the government genuinely cares about its people, or if it hasn't gotten around to stamping out civil rights yet.

The large, corrupt, socially-minded, well-organized government juggles the competing demands of Education, Healthcare, and Environment. It meets to discuss matters of state in the capital city of Intelligentsia. The average income tax rate is 88.3%, and even higher for the wealthy.

The frighteningly efficient McMasterdonian economy, worth a remarkable 4,140 trillion Livres a year, is driven entirely by a combination of government and state-owned industry, with private enterprise illegal. However, for those in the know, there is a slick, highly efficient, quite specialized black market in Tourism, Information Technology, Arms Manufacturing, and Book Publishing. The private sector mostly consists of enterprising ten-year-olds selling lemonade on the sidewalk, but the government is looking at stamping this out. Average income is an impressive 148,817 Livres, and distributed extremely evenly, with practically no difference between the richest and poorest citizens.

Children wondering what happens to pets after they die are shown where the compost heap is, museum visitors often bring lemons and black lights, the nation is automatically assumed to be the source of all unmarked weapons, and five-year-olds who refuse to line up on command get gold stars. Crime, especially youth-related, is totally unknown, thanks to a well-funded police force and progressive social policies in education and welfare. McMasterdonia's national animal is the McMasterdonian Lion, which frolics freely in the nation's many lush forests, and its national religion is Flemingovianism.

McMasterdonia is ranked 310,012^th in the world and 4,528^th in The North Pacific for Least Corrupt Governments, with 57.69 percentage of bribes refused.