This paper investigates corporate hedging activities in the Australian gold mining industry. We find that the Australian companies in 1997 are more actively involved in gold derivative markets than their counterparts in North America in 1993. This may suggest a general risk-averse attitude among the Australian managers when comparing with the North American managers. We also find that corporate...

Mining enterprises affect the complex of natural conditions: geological structure, relief, atmosphere, watercourses, soils, vegetation, landscape, and change quality life population. The development mining industry in Tajikistan can lead to a deterioration environmental situation. Investigations area Aprelevka gold-mining quarry central Karamazar ore region have shown that all components desert...

The severe drought of 1983–1984 in the Sahel region, and its socio-economic impacts for people relying on farming had consequence first major gold rush at Koma Bangou southwestern part Niger. Initiated 1984, panning activities were interrupted from 1989 to 1999 with exploration permits assigned mining industry. site was reclassified year-end as a artisanal resumed until present-day. Gold such o...

The town of Krugersdorp in South Africa is the locus an important wildlife game reserve, Game Reserve (KGR), which juxtaposed by (<1000 m) down-gradient large-scale gold mining outfits Mintails Mogale Gold (MMG) and Rand Uranium (RU). aim study was to determine concentration levels potentially harmful elements (PHEs) that have accumulated due post-mining activities local water bodies use the...

OBJECTIVES This cross-sectional study aimed at the environmental health hazards at work and cyanide exposure of small-scale gold miners engaged in gold extraction from ores in a mining area in the Philippines. METHODS Methods consisted of structured questionnaire-guided interviews, work process observation tools, physical health assessment by medical doctors, and laboratory examination and bl...

Cause Cyanide poisoning of birds is caused by exposure to cyanide in two forms: inorganic salts and hydrogen cyanide gas (HCN). Two sources of cyanide have been associated with bird mortalities: gold and silver mines that use cyanide in the extraction process and a predator control device called the M-44 sodium cyanide ejector, which uses cyanide as the toxic agent. Most of the cyanide mortalit...

Using a large plant level data set, this paper carries out an econometric analysis of the environmental performance of multinational …rms in the gold mining industry worldwide. The aim of the analysis is to determine if, by looking at the actual environmental performance of …rms (as opposed to inferring such behavior from location decisions), we can shed any light on important questions in the ...