It is a truth universally acknowledged that arguing about the definitions of terms like "capitalism" and "socialism" is a waste of time. So I will simply assert that the world has many flavors of capitalism — U.S./British, Japanese, Scandinavian, German, French/Italian/Southern European and others.
I've known some genuine socialists who favor outright government ownership and control of the means of production, which necessarily means government making all the decisions about what is produced, where it is produced, how it is priced, who gets hired and how much workers get paid.
But most people who talk a socialist game, when asked for real-world examples, tend to sidestep the more extreme (and less attractive) possibilities and point to European countries — in particular, to Northern European countries like Sweden, Denmark, Norway and sometimes Finland.
The genuine socialists I know view these countries as sellouts to capitalism. The Scandinavians themselves are quick to deny that they are socialists, too. For example, the prime minister of Denmark gave a talk at Harvard in 2015 and said:
"I know that some people in the U.S. associate the Nordic model with some sort of socialism. Therefore, I would like to make one thing clear. Denmark is far from a socialist planned economy. Denmark is a market economy. … The Nordic model is an expanded welfare state which provides a high level of security for its citizens, but it is also a successful market economy with much freedom to pursue your dreams and live your life as you wish."
If we want to avoid quibbling over the s-word and instead just refer to a Scandinavian style of capitalism, what are some of its key elements?
The question is tricky, because the Scandinavian style of capitalism has gone through several stages in the last 50 years or so. In a 1997 article, the prominent Swedish economist Assar Lindbeck described how in the decades after World War II Sweden had a growing economy, generous public services, full employment and a fairly equal distribution of income. But this was followed by slower growth in the 1970s and a collapse of full employment and rise of inequality by the early 1990s.
In Lindbeck's words, the Swedish model looked "less idyllic" by the early 1990s. Problems include "disincentive effects, problems of moral hazard and cheating with taxes and benefits, deficiencies in competition … as well as inflexible relative wages … [and] the ever higher ambitions of politicians to expand various government programs, and the gradually rising ambitions of union officials to compress the distribution of wages as well as to expand the powers of unions."