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This paper studies empirically the impact of mining on conflicts in Africa. Using novel data, we combine geo-referenced information over the 1997-2010 period on the location and characteristics of violent events and mining extraction of 27 minerals. Working with a grid covering all African...
Persistent link: https://www.econbiz.de/10011084702
This paper studies empirically the impact of mining on conflicts in Africa. Using novel data, we combine geo-referenced information over the 1997-2010 period on the location and characteristics of violent events and mining extraction of 27 minerals. Working with a grid covering all African...
Persistent link: https://www.econbiz.de/10010884910
. Chinitz (1961) hypothesized that coal mines near Pittsburgh led that city to specialization in industries, like steel, with …. We test this idea by looking at the spatial location of past mines across the United States: proximity to historical … mining deposits is associated with bigger firms and fewer start-ups in the middle of the 20th century. We use mines as an …
Persistent link: https://www.econbiz.de/10010859538
Fractal tools are used to investigate the hourly time fluctuations of the ceiling height of a chamber located in the medieval Jeroným Mine, which is one of the Cultural National Heritage sites of the Czech Republic. The data were measured from 2008 to 2010 by a laser distance meter (Leica...
Persistent link: https://www.econbiz.de/10011059867
En este trabajo estimamos la evolución de la productividad total en la minería española durante el período 1974-1991. Para ello proponemos la utilización de una metodología de medida genérica y flexible, que nos indica la trayectoria de la productividad a partir de los factores o fuentes...
Persistent link: https://www.econbiz.de/10005657342
Discounted-cash-flow (DCF) techniques form the basis of most corporate-investment decisions. Many practitioners, however, claim to be dissatisfied with traditional methods of appraisal. In this paper, we survey DCF and more recent methods of evaluating cyclical projects.
Persistent link: https://www.econbiz.de/10005669495
The severe productivity slowdown in coal mining in the 1970s has been widely attributed to the Coal Mine Health and Safety Act. However, other variables also warrant attention. Increasing unrest in the coal fields and challenges to both the Mine workers Union and coal operators also...
Persistent link: https://www.econbiz.de/10005769855
Le but de cet article est d'isoler les diterminants qui expliquent significativement les decisions de gestion des risques des entreprises non financieres. Nous appliquons le modele a des entreprises minieres en Amirique du nord. La variable aleatoire considiree est le prix de vente d'une once...
Persistent link: https://www.econbiz.de/10005775501
The ability to tap South African gold was regarded as vital for the restoration of sterling as an international currency after World War Two. Economic relations between Britain and the Union were dominated by the extreme volatility of capital movements within the sterling area.
Persistent link: https://www.econbiz.de/10005775737
Persistent link: https://www.econbiz.de/10005780303