I'll compute its value. Then I'll empty the backpack out, put another combination of stuff compute its value, try all possible ways of filling up the backpack, and then when I'm done, I'll know which was the best.

直至把它填满，然后计算价值,然后我把包里的东西都导出来,再换一堆东西计算它们的价值,尝试过所有填满包的方案后,我就知道哪一种方案是最好的了。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's the benchmark figure from which a group of economists are starting, when they try to figure out the value of the happiness that can be generated by the Olympics and Paralympic Games this summer.

BBC: Going for the happiness gold

"As Indian consumers become more upwardly mobile and more exposed to foreign brand names, it is inevitable that the Indian consumer will upgrade himself and move up the value chain and try out better brands, so I think that is what UB is trying to prevent, " he said.

BBC: Kingfisher logo

Raj Singh, a former investment banker who recently became chief risk officer of Swiss Re, points out that the banks' risk models, which try to put a value on how much they should realistically expect to lose in the 99% of the time that passes for normality, draw on reams of historical data.

ECONOMIST: Risk management