Search Results - subject:"Jensen’s inequality"

Silva, João Santos; Tenreyro, Silvana - In: Portuguese economic journal 21 (2022) 3, pp. 423-437

Persistent link: https://www.econbiz.de/10013463066

Life expectancy is the death-weighted average of the reciprocal of the survival-specific force of mortality

Cohen, Joel E. - In: Demographic Research 22 (2010) 5, pp. 115-128

The hazard of mortality is usually presented as a function of age, but can be defined as a function of the fraction of survivors. This definition enables us to derive new relationships for life expectancy. Specifically, in a life-table population with a positive age-specific force of mortality...

Persistent link: https://www.econbiz.de/10008545910

A refined Jensen’s inequality in Hilbert spaces and empirical approximations

Leorato, Samantha - Centro di Studi Internazionali Sull'Economia e la … - 2008

Persistent link: https://www.econbiz.de/10005694991

The Firm’s Perception of Demand Shocks and the Expected Profitability of Capital under Uncertainty

Gil, Pedro Rui Mazeda - Faculdade de Economia, Universidade do Porto - 2005

This paper revisits the results of the pioneering models of the firm under demand uncertainty and analyses the apparent disparity with respect to the signal of the investment-uncertainty relationship predicted by them. In the 1970’s-1980’s the modelling of demand uncertainty at the firm...

Persistent link: https://www.econbiz.de/10005031579

Expected Profitability of Capital under Uncertainty – a Microeconomic Perspective

Gil, Pedro Rui Mazeda - Faculdade de Economia, Universidade do Porto - 2004

capital, marginal profitability of capital is a convex function of the stochastic variable (e.g., price); by Jensen’s … the choice variable, marginal profitability of capital is a concave function of the stochastic variable; hence, by Jensen’s … inequality, this means that uncertainty increases the expected profitability of capital, which increases the incentive to invest …

Persistent link: https://www.econbiz.de/10005059462