In this paper, we prove that in a simple model of income determination, when taking into account linear functions, the change rate for the gross domestic product (GDP) is equal to the quotient of the increase in investment and the sum of exogenous consumption plus the initial investment. This...

Reducing the occupational accident rate and improving competitiveness requires that firms implement an occupational health and safety management system that promotes safe behaviour and workers' personal involvement in activities linked with their well-being at work. The literature has not...

There is a widespread use of statistical tests to evaluate measurement scales of latent constructs in the business arena. However, the results of these tests can yield misleading conclusions regarding the validity of measurement scales. Therefore, content validity has to be considered in order...

Increasing the productivity of an economy requires improvements in the productivity of its companies, and therefore greater business success. It should be noted that a company on the road to success is more productive. The objective of this paper is to analyse how internal and external factors...

El efecto del nivel de salud de los individuos sobre su productividad y sus ingresos es incuestionable desde varios puntos de vista. Sin embargo, la medición de ese efecto ha sido bastante más complicada que, por ejemplo, la correspondiente al efecto de la educación. Las razones de esta...