Intensified agriculture and irrigation practices over a long-term are an important factor in soil change phenomena that can appear some unwanted effects on soil attributes. To examine this hypothesis, physicochemical properties and clay mineralogy of four major soil types (Typic Haploxerepts,...

Unlike previous migration studies which mainly focus on individual migration, this article examines the long-term mortality consequences of childhood migration and resettlement. Using a unique Chinese historical population database, we trace 30,517 males from childhood onwards between 1792 and...

The paper treats the theory of short-term costs and long-term costs from an axiomatic perspective.

The Technical Working Group (TWG) for Maize of the European Coexistence Bureau (ECoB) analysed in 2010 the best practices for coexistence between GM maize crop production with non-GM maize . In this document the analysis is extended to the coexistence between GM maize crop production and honey...

Why it is so hard to find a robust effect of aid on the long-term growth of poor countries, even those with good policies. A possible offset to the beneficial effects of aid is examined using a methodology that exploits both cross-country and within-country variation.

The demographic database of Eurostat and of Us Census of Bureau are explored and the main facts are extracted and described. This paper is completely self-standing but is also part of a more general analysis dedicated to the functioning and sustainability of pay-as-you-go to finance the welfare...

The circular interplay between demography-employment-productivity-PayGo is investigated for Italy and Italian geographical repartitions. Looking forward to the mid-long run, the paper offers simulations of the burden each effective worker and each active citizen will have to bear to finance via...

The circular interplay between demography-employment-productivity-PayGo is investigated for Europe and Us. Looking forward to the mid-long run, the paper offers simulations of the burden each effective worker and each active citizen will have to bear to finance via pay-as-you-go public health...

We consider a market where firms hire workers to run their projects and such projects differ in profitability. At any period, each firm needs two workers to successfully run its project: a junior agent, with no specific skills, and a senior worker, whose effort is not verifiable. Senior workers...