That's an excellent question, especially looking into factors that affect the return-generating process in the stock market-in other words, factors that affect the stock prices in a conventional sense: Market liquidity, length of the daily fasting period, especially contrasting summer months with winter months when Ramadan coincides with one versus the other, with the length of day being really longer during summer months.

VOA: standard.2010.08.05

And the rotation rate determines the length of a day.

CNN: Chile quake moves city more than 10 feet

Schools can change the length of the school day, fire bad teachers and spend their money as they wish.

ECONOMIST: Education: Charting a better course | The

At issue were the length of the school day, tying teacher evaluations to student academic performance, and potential job cuts.

FORBES: 7 Top Education Stories Of 2012