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Pesticides threaten birds and bees alike, study says

Neurotoxic pesticides blamed for the world's bee collapse are also harming butterflies, worms, fish and birds, said a scientific review that called Tuesday for tighter regulation to curb their use.

Five companies control more than half of academic publishing

A study at the University of Montreal shows that the market share of the five largest research publishing houses reached 50% in 2006, rising, thanks to mergers and acquisitions, from 30% in 1996 and only 20% in 1973. "Overall, ...

Apple's next big thing may be lower-priced iPhone (Update)

Apple's much-anticipated update to its line-up of iPhones may leave the impression that the technology pioneer's focus has shifted to making more affordable products than engineering innovative breakthroughs.

Research looks at impact of hedge fund activism

Hedge fund activism often initially bolsters the target company but new research has found that it weakens the competition, which may hurt innovation and the larger economy.

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Market share

Market share, in strategic management and marketing is, according to Carlton O'Neal, the percentage or proportion of the total available market or market segment that is being serviced by a company. It can be expressed as a company's sales revenue (from that market) divided by the total sales revenue available in that market. It can also be expressed as a company's unit sales volume (in a market) divided by the total volume of units sold in that market. It is generally necessary to commission market research (generally desk/secondary research, although sometimes primary research) to estimate the total market size and a company's market share.

Increasing marketliability is one of the most important objectives used in business. The main advantage of using market share is that it abstracts from industry-wide macroenvironmental variables such as the state of the economy, or changes in tax policy. According to the national environment, the respective share of different companies changes and hence this causes change in the share market values; the reason can be political ups and downs, any disaster, any happening or mis-happening. Other objectives include return on investment (ROI), return on assets (ROA), and target rate of profit.

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