As a major conference on the global biodiversity crisis opens in Montreal, a conservation biologist explains how ideas about protecting nature have evolved over the past 40 years.
Apple became the world’s ‘biggest’ company because of its sky-high valuation. But in the past, the largest companies were known for more meaningful metrics such as revenue and number of employes.
The record level of the price-to-earnings ratio for equities is increasingly worrying. But how do we determine whether the price of a stock – or an exchange – is valued at its fair price or overvalued?
Social media darling Twitter ended last week with US$2.3 billion wiped off its market valuation, following a 7.24% fall in its share price on the second day it traded. Despite the slip, the share price…