As a guide to the interpretation and application of this chapter, the public policy of the state is declared to be as follows: Economic insecurity due to involuntary unemployment is a serious menace to the health, morals, and welfare of the people of the state. Involuntary unemployment is, therefore, a subject of general interest and concern which requires appropriate action by the legislature to prevent its spread and to lighten its burden and to maintain purchasing power as a factor in stabilizing the economy of the state. This can be accomplished by encouraging employers to provide more stable employment and by the systematic accumulation of funds during periods of employment, from which benefits may be paid for periods of involuntary unemployment. The legislature, therefore, declares that, in its considered judgment, the public good and the general welfare of the citizens of the state require the enactment of this measure, under the police power of the state, for the operation of public employment service offices and for the establishment of an employment security program to be used for the benefit of eligible unemployed persons.