Decision Making as Output and Bounded Rationality

  The classical economics theories proceed on the assumption of rational agents. Rationality implies the economic agents undertake actions or exercise choices based on the cost-benefit analysis they undertake. The assumption further posits that there exists no information asymmetry and thus the agent is aware of all the costs and benefits associated with the choice he or she has exercised. The behavioral school contested the decision stating the decisions in practice are often irrational. Implied there is a continuous departure from rationality. Rationality in the views of the behavioral school is more an exception to the norm rather a rule. The past posts have discussed the limitations of this view by the behavioral school. Economics has often posited rationality in the context in which the choices are exercised rather than theoretical abstract view of rational action. Rational action in theory seems to be grounded in zero restraint situation yet in practice, there are numerous restra

A Note on Supply-Demand Dynamics

 

Classical economics or rather its neo-classical variant posits economics revolving around the incentive mechanism. Economic agents are rational and hence their decisions revolve around the marginal cost-marginal benefit analysis. As discussed in the previous posts, economics is all about understanding actions of the agents and the implications of such actions. While economic agents might act in their self-interest, this need not align at all times with the self-interest of the group or the community they belong to. This misalignment might lead to the rise of externalities.

 

Yet, as agents act in their self-interest, it is important to understand the incentive mechanism at work. While people respond to incentives, they also respond to disincentives. There is definitely cost benefit analysis at work when the agents plan their action. This would be however contingent on the price they have to pay for the action. When someone over speeds or travels in the wrong lane or parks their vehicle in no-parking zone, they are essentially executing an action based on their subjective probabilities of getting caught and the price they have to pay for the same. If their luck holds, they would obviously calculating the benefits they are reaping from the same. The price has an important role in business and markets in determining the interactions of demand and supply.

 

Demand and supply decisions are contingent on willingness and ability on the part of the economic agent to buy or offer goods in the market at different prices. Implied is an explicit connection of these decisions to purchase or offer with the prices prevailing in the market. In conventional terms, supply is defined as the willingness and ability on the part of the producer to offer goods in the market for sale at all possible prices. Similarly, demand is usually defined as the willingness, ability and desire on the part of the buyer to purchase goods in the market at various prices. The ability might exist yet the absence of willingness would curtail supply or demand. In the current content, demand patterns seem to be affected not because of the lack of ability per se but even the willingness seem to be missing. Those who are able to afford the goods are not willing to buy to avoid going out thus being at risk for contracting the coronavirus. Similarly, there are many who might have the ability to offer goods but are reluctant to open their shop for fear of being infected by the coronavirus. The propensity to self-protect is hindering willingness thus impacting the dynamics of demand and supply. Construction industry both residential and commercial are hindered because labour is unwilling to come to work and have migrated back to their home towns. This again has to do with willingness and not the ability per se.

 

It is possible that ability has been affected. People when they lose their jobs do not have sufficient income thus forcing them to curtail their purchases. This lack of ability does affect demand patterns. There might be many a young man, who would be keen to have a ride on Harley Davidson, but given their income levels, they might not be in a position to purchase the bike. It might remain an aspiration but does not get converted to demand due to the missing ability.

 

Similarly the supply positions too are influenced by the ability or the lack of it on the part of the producers. China has been invading global markets with its cheap supply of goods. These are constraining the ability of the domestic suppliers to offer goods at those China prices. In India, many a small sector enterprises have been wiped out by the flooding of China goods. If the Chinese manufacturers offer goods at lower prices, the Indian counterparts must be in a position to offer the same. Yet, given various constraints, Indian producers are not in a position to offer those goods at the China price thus exiting the market. This is a reflection of the ability of the Indian producer irrespective of the reasons for lack of the ability to execute the things.

 

As we have noted already, the dynamics is contingent on the prices. It is therefore a sort of relation between goods on offer for sale or goods being purchased with the terms of exchange of those goods or in other words the price. The graphical representation of these relationship leads to the derivation of the demand curve or the supply curve as the case might be. Yet what would be of interest is the possibility of change in these terms of interactions.

 

The interplay of incentive mechanism would again come to the fore. The price-demand-supply interplay is subject to the assumptions of ceteris paribus something that rarely exists in reality. Implied is the terms of exchange are not independent in itself but a function of numerous factors. These might include income, nature of the good, the complements resulted through purchase or sale of good, the availability of substitutes, the necessity of the goods, random shocks that potentially disrupt supply or demand, information about the good in question, the extent of advertising, extent of differentiation, flexibility and mobility of the inputs that go in production and distribution of the good, durability of the good among many others. The degree of response of demand or supply to changes in these factors obviously hinges on the elasticity with respect to that factor. The elasticity of demand or supply with respect to price might be critical, yet what is of equal importance is the elasticity of these factors in reference to their impact on supply or demand.

 

A question might emerge whether the forces of demand and supply would ever intersect. Contrary to textbook analysis, the intersection need not be a logical outcome. The equilibrium in fact would more of a scenario of prevailing of status quo rather than an intersection of demand and supply curves. The post “Schelling’s equilibrium” engages at certain depth the idea of economic equilibrium in reality as opposed to the textbooks. In reality, the forces of supply and demand move towards convergence if the price elasticity of supply is greater than the absolute value of price elasticity of demand. In the other case where the price elasticity of supply is less than the absolute value of price elasticity of demand, rather than a movement of equilibrium, the forces of demand and supply actually move the opposite or in other words, diverge away from the equilibrium,. Implied is an elastic demand curve relative to supply moves the market towards equilibrium whereas the elastic supply curve relative to demand moves the market away from equilibrium.

 

As such the construction of a demand or a supply function necessitates the presence of several variables that either independently or interaction influence the patterns of play of demand or supply. The current note is more an illustration of theoretical underpinnings of these dynamics. The examination in detail of various variables that respond and change positively or negatively the equation between price and supply or demand must wait for another day.

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