This chapter explores the value concept that is much important to define market equilibrium and explain market behaviors in the economy. Marginal principle is used to determine supply functions in the market structure that provide rational choices in production and consumption. However, rational...

District heating plays an important role in many countries with cold climates. District heating are local systems and in most cases, they organized as natural monopoly markets. This article examines the three variants for the formation of prices for household consumers on monopoly district...

The present paper aims to present the picture of the Third Sector in Romania, today and the way it relates to Law 219/2015 on the Social Economy. It was analyzed the current legislative text and the specific laws on establishing and functioning of the key organizations concerned. It has been...