We characterize the equilibrium manifold of an economy when initial endowments can be individually observed. We adopt a local, "differentiable" perspective. We derive necessary and sufficient conditions that characterize the equilibrium manifold, and we show that, if these conditions are...

Is general equilibrium theory empirically testable? Our perspective on this question differs from the standard, Sonnenschein-Debreu-Mantel (SDM) viewpoint. While SDM tradition considers aggregate (excess) demand as a function of prices, we assume that what is observable is the equilibrium price...