A note on the existence of monetary equilibrium in a stochastic OLG model with a finite state space

The present paper provides a simple and complete proof of the existence of a stationary monetary equilibrium for a stochastic overlapping generations model with a finite state space. Differently from previous studies, we show that all the prices are positive without the Frobenius theorem.Stochastic overlapping generations model, Stationary monetary equilibrium, Existence, Fixed-point theorem, Frobenius theorem.

Degradation of Melanosomes by Lysosomes

The degradation of melanosomes by the lysosomes of the mouse liver was studied in vitro. Mice with melanoma received intraperitoneal injections of a 14C-amino acid mixture and 14C-dopa separately. Radioactive mitochondria and melanosomes were isolated from these mouse melanomas. Digestion of the 14C-amino acid labeled melanosomes and mitochondria was carried out with lysosomes isolated from the mouse liver. The progressive degradation of the protein moiety of the mitochondria was observed and also the slow but steady degradation of melanosomes. Digestion of 14C-dopa labeled melanosomes was attempted with liver lysosomes. There was no significant amount of degradation. Melanin appears to be very resistant to lysosomal digestion in vitro. It is assumed, therefore, that in the compound melanosomes, the melanosomes can be degraded by lysosomes at the protein moiety but not at the melanin moiety