This paper considers common use of natural, renewable resources. It identifies good prospects for efficiency and welfare. To wit, a core outcome - hence cooperation - can be secured over time by principal planning of total quotas, and in time by agents who share these in short-term markets....

Considered here is on-line portfolio management aimed at maximizing the long-run growth of financial wealth. The portfolio is repeatedly rebalanced in response to observed returns on diverse assets. Suppose statistical information and related methods are not available - or deemed too diffcult....

We exhibit a quite natural, adaptive process generated by price-taking, noncooperative firms, supply the same market. Under rather mild conditions, that process. being driven by marginal profits, converges to a market clearing, Cournot-Nash equilibrium. Namely, it suffices for convergence that...