In this paper, we propose the test for the location of the tangency portfolio on the set of feasible portfolios when both the population and the sample covariance matrices of asset returns are singular. We derive the exact distribution of the test statistic under both the null and alternative...

We describe and compare the experiences of academic exclusion of Alexander Del Mar, J.A. Hobson, and Gordon Tullock. While aspects of the circumstances differed, a common element was academic exclusion because of challenges to mainstream views. Alexander Del Mar, J.A. Hobson, and Gordon Tullock...

Uzawa (1961) has shown that balanced growth requires technological progress to be strictly Harrod neutral (purely labor-augmenting). This paper offers a slightly more general variant of the theorem that does not require assumptions about savings behavior or factor pricing and is much easier to...

Some consequences of childbearing are partly expected by the parents, while others clearly are difficult or impossible to foresee. In this paper, the different types of consequences, for parents or siblings, are briefly reviewed. It is then argued that if an effect of childbearing to a large...