Reaganomics, Voodoo economics, or Trickle down economics, relies on the rich having all the wealth and then leaving it up to them to distribute the money to the poor. Also known as "trickle-down" economics, due to the middle class feeling like they're being pissed on by billionaires, it preaches cutting taxes on the wealthy and deregulating business restrictions, promoting increased corporate presense in international markets, increased defense of markets and trade, and austerity in social safety-net spending. Initially, there is may be big boom in the economy, however, then comes the subsequent "bust cycle." 19th Century and 20th Century politicians referred to these policies as "horse and sparrow" economics. If the horse was fed enough oats, some was bound to pass through the horse, and the sparrows would eventually get enough to eat.
Reaganomics is an unstable economic system that creates a bubble that will eventually pop. The poor and middle class are usually crushed under the lack of wealth and outrageous income inequality, they eventually stop buying things which slows down an economy to the point in which there is a crash and everything turns to absolute shit.