公共产品的有效供给是新兴大国进行区域合作的基础,其能够有效地降低贸易成本、促进要素的跨区域流动以及提高交易效率,从而促进区域经济协调发展.通过构筑理论模型,对新兴大国内部跨区域经济合作中公共产品的供求进行均衡分析,研究发现:大国区域经济分工协作必须达到一定的条件之后,区域才能在内部公共产品与合作中公共产品的需求之间实现均衡;利率决定着大国区域经济合作中公共产品的供求均衡,当利率上升时,区域购买公共产品的数量会下降;当利率下降时,区域购买公共产品的数量会增加;大国经济规模与公共产品需求是正相关关系,两者通过利率机制的媒介作用形成良性循环.新兴大国必须基于要素禀赋,大力发展经济,提升经济规模,积极参与区域经济分工协作,以有效利用国际国内市场.
The effective supply of the public goods is the foundation of the regional economic cooperation, which can effectivelyreduce the trade cost, stimulate the regional flow of important factors, raise the trading efficiency and speed up the economic coordi-nated development. We analyze the public goods supply and demand balance during the regional economic cooperation by construc-ting the theoretical model of the emerging powers. It is found that only when the division & cooperation reach a certain level can thelarge internal public goods and the cooperative public goods realize the equilibrium. The interest rate determines the public goodssupply and demand balance during the regional economic cooperation. The regional public goods purchase decreases when the inter-est rates rise. The regional public goods purchase increases when interest rates fall. The economic scale of the big country is posi-tively relevant with the public goods demand and form a virtuous circle through the mediation of the interest mechanism. The emer-ging powers must develop the economy, raise the economic scale, and participate in the regional economic cooperation & division ac-tively to effectively utilize the international and domestic market based on the factor endowment.