Showing posts with label Data. Show all posts
Showing posts with label Data. Show all posts

Thursday, January 7, 2010

Lost Decade?

I keep hearing reports that the 'naughts' have been a lost decade. Setting aside for a moment that ten years is an arbitrarily chosen length of time, with arbitrarily chosen starting points, I still can't really see a good justification for such a judgement. Have we really made no progress for ten years? Are we really no wealthier?



The blue area is the 'lost decade'. The boom and bust are clearly visible, however, by the measure of this graph we have continued to increase not just our wealth, but the rate of growth of our wealth throughout the past decade (notice how the trend line is bending upwards). But, let's cancel out the effects of population growth just to make sure.



OK, so the rate of growth of wealth on a per capita basis isn't increasing as much a it might have seemed from the previous graph, but wealth per capita is definitely going up. Lost decade? I just don't see it here.

In fairness, my numbers only go through July of 2009, so the graph might dip a bit more at the very end, but I haven't heard any news that the past 6 months have dramatically worse than the year prior, so we should still be in the general vicinity of the trend line.



This last graph shows again that the past ten years don't look remarkably different from any 10 year period since the 1950s. Substantial volatility in the per capita growth rate, but generally positive. Here's the source for my data for all three graphs.

Maybe these are not the right measures, or maybe there's something deceptive about these graphs. If so, please help me to understand why the past ten years have been a lost decade.

Wednesday, November 4, 2009

The Non-Obvious Path to Well-Being

Hot shot researcher Justin Wehr applies what he knows about analyzing data to his everyday life. He is recording numerous variables, some that are driven and some that are drivers, and using regression to find non-obvious correlations.

What a great way to optimize your efforts for maximum positive effect in your life! Want to know if the latest fad diet works better than the previous fad diet? You can! Want to figure out whether video game abuse is ruining your life? No problem!

Of course there are also the added benefits of daily feedback. In organizational management there is a saying that 'you get what you measure'. Want to watch less TV each week? Keeping a daily record of your habits can raise your awareness, and help you form concrete mini-goals to achieve each day.

To me, though, the really interesting part is the possibility of discovering a combination of small tweaks to your daily routines that could have a large impact on your sense of well-being. Who knows how much happier you could be?


 
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