The Nobel Economics Prize was awarded Monday to US economists Oliver Williamson and Elinor Ostrom, the first woman to win the award, for research on corporate governance and natural resource management.

Their work may be seen as particularly germane in the wake of the global financial crisis and ongoing efforts to combat climate change.

"The research of Elinor Ostrom and Oliver Williamson demonstrates that economic analysis can shed light on most forms of social organisation," the jury said.

Ostrom won half the 10-million-kronor (1.42-million-dollar, 980,000-euro) prize "for her analysis of economic governance" especially relating to the management of common property or property under common control, such as natural resources.

Her work challenged the conventional wisdom that common property is poorly managed and should be either regulated by central authorities or privatised, the jury said.

A professor at Indiana University whose name has circulated as a possible winner in recent years, Ostrom told Swedish television her first reaction was "great surprise and appreciation," and said she was "in shock" over being the first woman to clinch the honour.

"If we want to halt the degradation of our natural environment and prevent a repetition of the many collapses of natural-resource stocks experienced in the past, we should learn from the successes and failures of common-property regimes," the jury said.

"Ostrom's work teaches us novel lessons about the deep mechanisms that sustain cooperation in human societies," it added.

She conducted numerous studies of user-managed fish stocks, pastures, woods, lakes and groundwater basins, and concluded that the outcomes are "more often than not, better than predicted by standard theories," the jury explained.

Williamson, a professor at the University of California Berkeley, was honoured with the other half of the prize "for his analysis of economic governance, especially the boundaries of the firm."

He has studied the existence of large firms and argued that hierarchical organisations represent alternative governance structures which differ in their approaches to resolving conflicts of interest.

"According to Williamson's theory, large private corporations exist primarily because they are efficient ... When corporations fail to deliver efficiency gains, their existence will be called in question," the Nobel committee said.

The Economics Prize is the only one of the six Nobel prizes not created in Swedish industrialist Alfred Nobel's 1896 will -- it was created much later to celebrate the 1968 tricentary of the Swedish central bank and was first awarded in 1969.

Last year, the honour went to US economist Paul Krugman, a prolific New York Times columnist and fierce critic of Washington's economic policies, for his "analysis of trade patterns."

The Economics Prize wraps up the 2009 Nobel season.

Americans dominated the awards this year.

For the five Nobel prizes announced last week -- for medicine, physics, chemistry, literature and peace -- nine of the 11 laureates were US citizens, including US President Barack Obama who sensationally won the prestigious Peace Prize for his "extraordinary efforts to strengthen international diplomacy and cooperation between peoples."

The Literature Prize went to German writer Herta Mueller for her work inspired by her life under Nicolae Ceausescu's dictatorship in Romania.

This year was also a record year for women laureates, with five honoured including Ostrom, beating the previous record of three.

The others were Herta Mueller for literature; Australian-American Elizabeth Blackburn and Carol Greider of the United States were awarded the Nobel Medicine Prize; and Ada Yonath of Israel was one of three scientists recognised for her work in chemistry.

The Nobel prizes, founded by Swedish industrialist Alfred Nobel, were first awarded in 1901, except for the Nobel Economics Prize which was created in 1968 and first awarded in 1969.

Laureates receive a gold medal, a diploma and the prize sum at formal prize ceremonies held in Stockholm and Oslo on the anniversary of Nobel's death, December 10.