oligarchy
power structure in which power rests with a small number of people
Meiji oligarchy
ruling class of Meiji period Japan
technocracy
system of governance where decision-makers are selected on the basis of their expertise in their areas of responsibility (esp. scientific knowledge), as opposed to one where elected representatives are the primary decision-makers in government
Republic of Genoa
a medieval and early modern maritime republic from the years 1005 to 1797
plutocracy
society or system ruled and dominated by the small minority of the top wealthiest citizens
gerontocracy
form of oligarchical rule where leaders are older than most of the population
aristocracy
form of government in which power is in the hands of a small, privileged, ruling class