Over at Jacobin, Seth Ackerman proposes this era's version of the Meidner Plan or John Roemer's A Future for Socialism, in Jacobin:
If a deterministic story about free markets generating optimal prices, leading to maximum output was no longer viable, then the failure of planned economies could hardly be attributed to the absence of those features. As Communist systems were collapsing in Eastern Europe, economists who had lost faith in the neoclassical narrative began to argue that an alternative explanation was needed. The most prominent theorist in this group was Joseph Stiglitz, who had become famous for his work on the economics of information. His arguments dovetailed with those of other dissenters from the neoclassical approach, like the eminent Hungarian scholar of planned economies, János Kornai, and evolutionary economists like Peter Murrell.
They all pointed to a number of characteristics, largely ignored by the neoclassical school, that better accounted for the ability of market economies to avoid the problems plaguing centrally planned systems. The aspects they emphasized were disparate, but they all tended to arise from a single, rather simple fact:in market systems firms are autonomous.
That means that within the limits of the law, a firm may enter a market; choose its products and production methods; interact with other firms and individuals; and must close down if it cannot get by on its own resources. As a textbook on central planning put it, in market systems the presumption is “that an activity may be undertaken unless it is expressly prohibited,” whereas in planned systems “the prevailing presumption in most areas of economic life is that an activity may not be undertaken unless permission has been obtained from the appropriate authority.” The neoclassical fixation with ensuring that firms exercised this autonomy in a laissez-faire environment – that restrictions on voluntary exchange be minimized or eliminated — was essentially beside the point.