The article is devoted to the implementation of nonparameterized method data envelopment analysis (DEA) world’s economy as an array countries with different levels technological activity. main purposes this research are follows: systematical presentation methodological foundations international technology frontier concept, controversial problems possible future development tendencies. Both itse...

The human population blast has brought several problems related with the overconsumption of a wide range feedstocks and natural resources conducting to their risk depletion. consumption fossil fuels is an example, increasing levels exploitation negative impacts caused by use. Anthropogenic activities have triggered over accumulation many hazardous substances wastes which are regarded be detrime...

Abstract Based on a historical overview of spatial networks and mobility, the development theory, this review discusses current rural problems in Europe need for new policy. The toward post‐urban world, that is, world where traditional urban–rural dichotomy is dissolving replaced by city‐regions vast, declining peripheries, means division areas into two types: those becoming integrated growing ...