This paper is concerned with the growth of individual earnings over time. Four aspects of time are distinguished: experience, age, vintage and calendar year. The first section of the paper provides a brief outline of a theory of planned growth in earnings. The second and main section of the...

A well-documented human tendency is to compare outcomes with others, trying to outperform them. These tendencies vary across cultures and among different individuals in a given society. The workplace is an important source for social interaction. The willingness of workers to exert effort...

The purpose of this study is to present a simple but explicit model of on-the-job training which may enable us to separate and identify various types of vintage effects. An attempt is made to apply the model to the data on the earnings of American scientists in the period 1960-1970.