539 research outputs found
TECHNOLOGICAL PROGRESS, INCOME DISTRIBUTION AND CAPACITY UTILISATION: A COMPUTER SIMULATION-BASED ANALYSIS
The paper presents a post-keynesian growth model in which (i) the mark-up rate varies in the long-term due to a misalignment between the actual rate and the 'desired' profit rate; and (ii) the capital-output ratio is not necessarily constant, on the contrary it may shift as a result of the technological progress, which according the Harrod's typology can be neutral, capital saving or capital intensive. We demonstrate that the economic stability is only reached if the technological progress is neutral or capital intensive and the investiment is susceptible to fluctuations in the mark-up rate. After undergoing computer simulations, we noticed that an endogenous transition from a wage-led to a profit-led accumulation regime is feasible. Furthermore, we identified a tendency to the stabilization of the profit rate, conditioned to a high savings out of profits ratio.
Application of Sturm's theorem to marginal stable circular orbits of a test body in spherically symmetric and static spacetimes
In terms of Sturm's theorem, we reexamine a marginal stable circular orbit
(MSCO) such as the innermost stable circular orbit (ISCO) of a timelike
geodesic in any spherically symmetric and static spacetime. MSCOs for some of
exact solutions to the Einstein's equation are discussed. Strum's theorem is
explicitly applied to the Kottler (often called Schwarzschild-de Sitter)
spacetime. Moreover, we analyze MSCOs for a spherically symmetric, static and
vacuum solution in Weyl conformal gravity.Comment: 6 pages, 1 figure, accepted by EPL (Europhysics Letters). arXiv admin
note: text overlap with arXiv:1410.626
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