Prepared remarks In his prepared remarks , Mubarak said al though the world is at a different place than it was just a few years ago and s tands at a crossroad, there is still reason for hope. "September 11, the war in Iraq and the near collapse of the Middle East peace process are witness to this great turmoil," Mubarak said. "Nevertheless, I am h e r e to talk to you about a hopeful vision th...

We investigate the finitely repeated prisoners’ dilemma with explicit contractual devices. We show that full collusion can be achieved by incentivizing the players’ final period of play with small fines. Our incentivizing modality is the penance contract, by which a player is penalized if (and only if) he deviates from the penance strategy in the final period. We show that using this contractua...

We consider the determination of the optimal ne for noncompliance by a legislator who anticipates the inspection game between an autonomous inspection agency and polluting rms. This agency can make the inspection of individual rms contingent on ambient pollution. The agency's autonomy implies that it cannot commit itself to announced inspection probabilities. If the legislator centralizes the d...

Fine and coarse root biomass, C, and N mass parameters were assessed by root size and soil depths from soil cores in plots of 32-year-old black spruce (Picea mariana (Mill.) Britton, Sterns & Poggenb.) from four full-sib families studied previously for drought tolerance and differential productivity on a dry and wet site. All fine and coarse root size categories had greater root biomass on the ...

Coring methods cannot reveal the distribution of roots with depth in rocky soil, and fine roots are typically sampled without regard to the location of trees. We used quantitative soil pits to describe rooting patterns with soil depth and distance to trees in northern hardwood stands. We sited three 0.5 m2 quantitative soil pits in each of three young (19–27 years) and three older (56–69 years)...