The Republic of The 4th Doctor is a gargantuan, safe nation, notable for its ban on automobiles, punitive income tax rates, and stringent health and safety legislation. The compassionate population of 22.121 billion 4th Doctorians are fiercely patriotic and enjoy great social equality; they tend to view other, more capitalist countries as somewhat immoral and corrupt.

The enormous, socially-minded government juggles the competing demands of Welfare, Environment, and Social Policy. The average income tax rate is 68.1%, and even higher for the wealthy.

The large but stagnant 4th Doctorian economy, worth 313 trillion scarves 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 Trout Farming, Retail, Cheese Exports, and Soda Sales. 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 14,194 scarves, and distributed extremely evenly, with practically no difference between the richest and poorest citizens.

Dog breeding has been banned in accordance with recent animal experimentation laws, people are now classified as male, female, or genderqueer, retirement homes are often fitted with luxurious suites, and the government has cut taxes in the face of widespread tax evasion. Crime, especially youth-related, is totally unknown, thanks to a capable police force and progressive social policies in education and welfare. The 4th Doctor's national animal is the k-9, which frolics freely in the nation's many lush forests.

The 4th Doctor is ranked 231,684^th in the world and 6^th in Gallifrey for Highest Disposable Incomes, with 4,528.02 Standard Monetary Units.