theoretical models in welfare economics

the present essay intend to intoduce some vital established economic models of social welfare as welfare criticize and evaluate their capability and their explicative nature . the cotent is totally theoretical and therefore the evaluation will be done through hypothetical and abstract values and criteria . particularly the essay tries to go beyond exact socio - economic welfare models and to find the political economy aspacte of the model and to test of they are applicable and reasonable in terms of human being essential wants in an hypothetical society . the challenge of market was as planning system as well as the problem of income redistreibution will be analysed in this study. i found it quite necessary to introduce and compare these models with purely critical approach, because many prejudgments prevail vail among iranian economists in this field . extremist rights , neo liberal and neo conservative for more than 12 years engaged all universities and in reality did not allow for the discussion about real nature of the market mechanism and its shortcoming in social welfare. in this paper i have discussed and compared pareto model and dobb and vandegrafs critic to pareto. then i have introduced and analysed kaldor - hicks model and contradictory nature . in the third section scitovsky’s theory and kuznets critic to this theory is introduced .pigow principle on welfare then is introduced and later pache and laspyers ideas are utilized in order to find the proper background for testing the discussed models . finally mishra-dobb model is introduced and actually is depended in his essay. introduction of more development discussion in do fence of the necessity of more equal income distribution and an effective welfare state be meanwhile a quite participatory democratic government as well as responsible for socio-economic development.