The question is about an arrangement (maybe a mode) of production in which producers use their own means of production to produce, employ only their own (and their family's unpaid) labor, own the product, and trade their goods, and there are traders who trade only among such producers. This arrangement would not be (simply) a phase or stage between other arrangements (or modes) of production, or economic systems. So far the most interesting economics I have read of such an arrangement is in Georgescu-Roegen's articles on "production" and "process" between 1960 and 1973. But they are about only such an arrangement in agriculture, independent peasant production (regardless of artisans or traders). Are there classical, neoclassical, or Marxist economists who have written about such production and exchange in comprehensive, general, or abstract terms? Whom would you recommend for theory and insights? John Womack