Gender Division of Labor and Alimony

According to the principle of comparative advantage, the gender division of labor is utility enhancing during marriage. However, in the long term it decreases the earning power of the party who specializes in housework. Once the marriage is dissolved she/he will be the losing party and hence should be compensated by the other party, who specializes in paid work which usually involves higher degree in the accumulation of human capital. As an effective means of compensation, it is shown formally that alimony may promote the gender division of labor and improve Pareto efficiency. The rule of remarriage termination of alimony is doubly inefficient by reducing gender division of labor and by discouraging efficient remarriages.Gender; division of labor; alimony; spousal support; marriage; specialization.

The different consumption functions of products and product differentiation

This paper develops a monopolistic competition model to study the characteristics of products, such as quality improvement and product diversity (function-specialization and individualization), and the division of labor in production. Different from the ordinary economic model, our utility function includes these characteristics and reveals economies of function-specialization and individualization. Moreover, our production function includes these characteristics and reveals economies of vertical specialization and function-specialization. Through comparative static analysis, we find the optimal characteristics and their correlations with population, transaction costs, management efficiency and production technology, etc.product diversity, quality, theory of the firm, division of labor, monopolistic competition

Specialization, Information, and Growth: A Sequential Equilibrium Analysis

Pricing costs and information problems are introduced into a framework with consumer-producers, economies of specialization, and transaction costs to predict the endogenous and concurrent evolution in division of labor and in the information of organization acquired by society. The concurrent evolution generates endogenous growth based on the tradeoff between gains from information about the efficient pattern of division of labor, which can be acquired via experiments with various patterns of division of labor, and experimentation costs, which relate to the costs in discovering prices. The concept of Walras sequential equilibrium is developed to analyze the social learning process which is featured with uncertainties of the direction of the evolution as well as a certain trend of the evolution.Coevolution of specialization and information, adaptive decision, bounded rationality, sequential equilibrium, economic development.

FINITE LIFE EXPECTANCY AND THE AGE-DEPENDENT VALUE OF A STATISTICAL LIFE

In this short paper, we investigate the behavior of the age-dependent value of a statistical life (VSL) within a lifecycle framework with a finite maximal possible lifespan. Some existing results, obtained under the unrealistic assumption of an infinite life expectancy, are reversed. In particular, we show that when the market interest rate is equal to (or less than) the sum of age-specific mortality rate and the discounting rate in time preference at any age over the remaining lifetime, then VSL declines. We also show that an inverted-U shape of VSL profile over the life cycle emerges under realistically plausible circumstances. An innovation is that we characterize the changes in optimal consumption and instantaneous utility with age, showing that such changes are proportionate to the difference between the sum of age-specific mortality rate and the discounting rate in time preference and the market interest rate, which may prove to be useful in addressing other issues related to VSL.Value of life; life expectancy; interest rates; time preference; mortality.

Consciousness and evolutionary biology

Reber’s axiom: “Any organism with flexible cell walls, a sensitivity to its surrounds and the capacity for locomotion will possess the biological foundations of mind and consciousness” does not seem to be supported by things we know and the logic of evolutionary biology. The latter leads to the conclusion that conscious species are flexible in their behavior (rather than in their cell walls), as argued in Ng (1995, 2016). Locomotion may be completely hard-wired and need not involve consciousness. It is hard enough to explain how consciousness could emerge in a sophisticated brain: Isn’t it a harder problem to show or see how consciousness could emerge in a much more primitive organism, as Reber suggests? As we are unlikely to solve the hard problem of consciousness any time soon, surely a more immediate problem is to ascertain with high probability which species are capable of welfare (enjoyment and suffering)

Justifying the precautionary principle with expected net-welfare maximization

The precautionary principle may be best justified on the principle of expected net-welfare/benefit maximization; there is no conflict between the two principles. We should want to be more cautious for cases with high benefit-to-cost ratios; there should thus be different degrees of precaution. For measures to reduce extinction-threatening environmental disruption or to reduce animal suffering that cost us little or nothing, we should adopt them even for species having only a small likelihood of being sentient, i.e., we should be more cautious. This argument is based on welfarism, which I strongly defend elsewhere (Ng 1990 & forthcoming)

Utilitarianism generalized to include animals

In response to the seventeen commentaries to date on my target article on reducing animal suffering, I propose that the term “welfarism” (when used pejoratively by animal advocates) should be qualified as “anthropocentric welfarism” so as to leave “welfarism” simpliciter to be used in its generic sense of efforts to improve conditions for those who need it. Welfarism in this benign sense — even in its specific utilitarian form (maximizing the sum total of net welfare) with long-term future effects and effects on others (including animals) appropriately taken into account — should be unobjectionable (even if not considered sufficient by all advocates). Rights, both animal and human, should be similarly grounded in the promotion of welfare. My strategic proposal to concentrate on reducing the suffering of farm animals now has been criticized as putting human interests above those of animals and as ignoring the suffering of animals in the wild. These criticisms misunderstand my position and fail to distinguish between the short and long run or between strategy and ideal morality. My position is consistent with perfect impartiality between animals and humans at the level of ideal morality. I also respond to the extreme asymmetrical focus on reducing suffering, ignoring the moral importance of pleasure (the argument against trading off “my orgasms against others’ agony”). Even mild measures for reducing animal suffering such as enlarging cage size for factory chickens and prohibiting the cutting of live eels have to be based on some interpersonal and interspecies comparisons of welfare. We must not use the philosophical uncertainty about the comparability or the very existence of animal sentience to diminish our efforts to protect animal welfare

Consciousness and evolutionary biology

Reber’s axiom: “Any organism with flexible cell walls, a sensitivity to its surrounds and the capacity for locomotion will possess the biological foundations of mind and consciousness” does not seem to be supported by things we know and the logic of evolutionary biology. The latter leads to the conclusion that conscious species are flexible in their behavior (rather than in their cell walls), as argued in Ng (1995, 2016). Locomotion may be completely hard-wired and need not involve consciousness. It is hard enough to explain how consciousness could emerge in a sophisticated brain: Isn’t it a harder problem to show or see how consciousness could emerge in a much more primitive organism, as Reber suggests? As we are unlikely to solve the hard problem of consciousness any time soon, surely a more immediate problem is to ascertain with high probability which species are capable of welfare (enjoyment and suffering)

Human superiority is obvious but does not justify cruelty

Humans are obviously superior, in general, to other animals. This is also supported by evolution and Jerison’s encephalization quotient. However, superiority does not justify cruelty towards other animals. Rather, it suggests higher responsibility. Just as adults are more capable than 2-year-olds, they also have a much higher responsibility in helping others in need, including other animals

REVISITING THE ORDERED FAMILY OF LORENZ CURVES

Lorenz curve; Gini index Abstract: Sarabia et al. (1999) present a basic model to create ordered families of Lorenz curves, along with basic theorems that describe the conditions for the models to satisfy the definition of the Lorenz curve. Using these basic models, they suggest a family which includes several well-known Lorenz models as special cases. This paper first shows that their basic theorems can be generalized. The paper then proceeds to propose additional families of Lorenz models. Finally the performance of some of the models is compared and it is shown that more efficient Lorenz models are possible with the assistance of our generalized result of the Sarabia et al. (1999) basic model.