The local development means the existence of several goods and services and their performance, expressed through adequate marketing policies, thus determining the overall development performance.The paper approaches the economic fundamental issues of local development and in this context it determines the basic components of public service marketing, relevant for local development: price, multiplier of revenues/expenditures, respectively the export multiplier.Those elements will express the ratios between resources and outcomes and their balance is based on a Keynesian model in an open economy.