only limited to ” feel ” sure enough. Recently, Holland Rotterdam university two economist is according to the data of test “hemline index ” is true.
Two economists, first for Paris has hundred years history of fashion (micro-blog) magazine ” L ‘ OFFICIEL “, put the magazine every month on the most fashionable sexy costumes, dress style as the world’s most popular skirt length indicator.http://www.sexy-costumeslingerie.com, They put the skirt length is divided into 5 levels:
1921 – 2009 century the most popular skirt length change trend.
Generally speaking, with the development of history, skirt length is shorter (this is why no past ChinaJoy why). At the same time, long also fluctuate.
To know the skirt length roughly circumstance,sexy lingerie, economists are still needed to find a simple and effective index for measuring economic development. In the past century, American economy has been in a fluctuation, boom and recession alternation, formed an economy cycle, while the United States is the economic center of the world, also on behalf of the whole world economic situation. So they chose to ” the United States each year all month there are many per cent month in recession “,http://www.sexy-corsetdressbustiers.com to measure the development of the world economy is good or bad, 1 represents the worst of economic,sexy lingerie, 0 represents the best economy.
If only to see the two curves, seems to be not so easy to see the clue. The two economists use the fitting formula to compute the two curve data links between:By continuously adjusting the parameters, they found that, when the economic index (NBER index) adjusted to lag behind 3 years of absence, two curve can be the greatest degree of phase correlation.