List of countries by incarceration rate
China. The rate of 118 is for sentenced prisoners in 2015 in Ministry of Justice prisons only. World Prison Brief: "1,649,804 [prisoners] at mid-2015 (via Asian and Pacific Conference of Correctional Administrators - sentenced prisoners in Ministry of Justice prisons only, excluding pre-trial detainees and those held in administrative detention). The Deputy Procurator-General of the Supreme People's Procuratorate reported in 2009 that, in addition to the sentenced prisoners, more than 650,000 were held in detention centres In China. If this was still correct in mid-2015 the total prison population in China was at least 2,300,000. ... 118 [rate] based on an estimated national population of 1.4 billion at mid-2015 (from United Nations figures) – sentenced prisoners in Ministry of Justice prisons only. (A total prison population of 2,300,000 would raise the prison population rate to 164 per 100,000.)" See also: Re-education through labor and Laogai.
United States incarceration rate
A substantial body of research claims that incarceration rates are primarily a function of media editorial policies, largely unrelated to the actual crime rate. "Constructing Crime: Perspectives on Making News and Social Problems" is a book collecting together papers on this theme. The researchers say that the jump in incarceration rate from 0.1% to 0.5% of the United States population from 1975 to 2000 (documented in the figure above) was driven by changes in the editorial policies of the mainstream commercial media and is unrelated to any actual changes in crime. Media consolidation reduced competition on content. That allowed media company executives to maintain substantially the same audience while slashing budgets for investigative journalism and filling the space from the police blotter, which tended to increase and stabilize advertising revenue. It is safer, easier and cheaper to write about crimes committed by poor people than the wealthy. Poor people can be libeled with impunity, but major advertisers can materially impact the profitability of a commercial media organization by reducing their purchases of advertising space with that organization.