Compare and contrast ad hoc instrumentalism and rational decision making models.

The public policy making mostly faces challenges in choosing right and best model. Policy makers develops disputes on various models through their ideas and theories. Mostly the model of rational decision making and incremental are disputed amongst the policy makers and economists. These both models have their own short comings and flaws. One is better than other in one aspect and other is better in some other perspective. These both models have their own respective roles in shaping public policies. Despite of the fact that both models have positive aspects, economists disputably argument on each model. Before going into the depth of the both models, first of all discuss their originations and their respective characteristics. One can easily distinguish them both easily looking at their characteristics. Because these both models vary each other to a greater extent.

When we talk about rational decision making model we are considering the rational decision making process. In which a pruritic approach toward decision making is strongly consider. This implies that the whole community desires and wants are known by the government or policy makers that these wants are calculate able and can be replaced by other alternatives by policy makers while making policies. The other aspect of rational decision making model is that, it Denys the involvement of community in any decision making. That mean all community decision must be taken without any participation or knowing the will of the community. It focuses on efficiency achievement and net benefit. Rational model affirms that the values of the society are known and can be compensated with alternatives while making policies. This concept of rational model closely related to the interchangeable efficiency concept. Which mean that public can transferee their preferences from on goods to other whenever they wants. Rational model also consider all social, political and economics values. Furthermore, rational decision making assumes that all decision must be on logical reasoning and rational basis. These logical reasoning consisting of four steps. The following four steps govern every decision making under the domain of rational model.

1) Defining the goals,

2) Identifying the alternatives to achieving the goals,

3) Assessing the potential out comings,

4) Selection the option that appears most feasible.

Whilst on the other hand incremental model favors repetitive and purists based decision making procedure. This model favors the policy making procedure in a fragmented forms, small and logical steps must be taken to finalize the policy. It counts every small step in policy formulation. Unlike rational decision making process it appreciate community involvement, while rational model is a centralized model which rejects community involvement in decision making. The incremental model was proposed by the economist Lind loom in an attempt to response to the imperfections of the rational model. Through this model Lind loom stated how to construct a public policy and what should be the nature of a successful public policy.  In incremental model ends and means are intimately intertwined, we almost knows our means of contemplating. Beside from it few means are consider unlike rational model. The assumption here is that managers have limited time and resources. The degree of logic and rationality is less than rational model. Rational model has centerline approach whilst incremental model has pruritic approach in policy making procedure. Where community involvement in policy formulation is consider, in centralized form there is no such an involvement in policy making. The concept of interchangeable efficiency is discussed in rational model, whereas incremental model Denys such interchangeability.

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