The paper deals with margins of entrepreneurship where small business owners are almost working ontheir own having no or just a few employees and where one can find also people working with lowreturns and having firms without stability or prosperous dynamics. However, even the area...

Anticipating the impact of changes in economic incentives on dietary quality and nutritional health requires knowledge of how physical quantities of food consumed respond to price and income variations. A problem arises, however, because physical quantities are: 1- not consistent aggregates in...