Here's an idea that I posted to lbo-talk a couple of days ago.  Michael Perelman 
suggested I post it to pen-l.  I've also included a response from Doug Henwood with a 
valuable resource.
--Michael McIntyre
International Studies
DePaul University


Here's the scam.  For a course called "States, Markets, and Societies" I plan to walk 
in on the first day, have each student roll a pair of dice, take her/his name, and put 
the name and roll of the dice up on the board.  Then, with some suitably vague 
reference to Howard Becker's forty-year-old study of students and grades at the 
University of Kansas, I'll announce that since it's clear that grades are an 
impediment to learning, I've decided to get around the grading problem by assigning 
grades randomly.  Then I'll reveal the grading scale.  A roll of 12 is an A; a roll of 
2 is an A-, 11 is a B+, 3 is a B, and so on down to 7, an F.  Barring some very 
strange throws of the dice, then, F will be among the most common grades.  This, I 
predict, will piss my students off.

After letting them vent for awhile, I'll tell them that the only way they are going to 
get me to change my policy is to convince everyone in the room that an injustice has 
been done.  "Everyone" will include the people lucky enough to roll for high grades.  
We'll see if they have sufficient ingenuity to demonstrate that random, arbitrary 
distribution of a valued good is unjust.

At that point (maybe the following class, depending on how time goes), I'll introduce 
them to the notion of a birth lottery - the random and arbitrary assignment by birth 
of one's valued goods at least for the first couple of decades of life (and, 
substantially, for much longer than that).  Having just conclusively proved to their 
own satisfaction that this arrangement is unjust, the class, centered on the theme of 
inequality on a global scale, can proceed.

So how can you help?  Well, I'm looking for a little technical support here.  To make 
the second part work, it would be good to have data on the world distribution of 
income fine-grained enough to allow me to interpoate per capita incomes at specified 
percentile levels (17, 31, 44, 56, 67, 75, 83, 89, 94, and 97 to be exact).  If that 
data is out there, I haven't seen it.  I'm willing to go with relatively unrefined 
data (non-PPP adjusted, based on median national incomes, etc.) as long as I can use 
it to make a dirty ball-park interpolation.

Any ideas where I can get data like this?

Michael McIntyre

PS - If you want to know the reading list:
Robert Bates, Prosperity and Violence
Gianfranco Poggi, The Development of the Modern State
Charles Tilly, Coercion, Capital, and European States
Ellen Meiksins Wood, The Origin of Capitalism
Kenneth Pomeranz, The Great Divergence
Mike Davis, Late Victorian Holocausts


[and from Doug Henwood]
World Bank economist Branko Milanovic has a paper on world income 
distribution 
<http://wbln0018.worldbank.org/research/workpapers.nsf/(allworkingpapers)/8DEA74BC10A97DCF8525683300663553?OpenDocument>
 
that blends national household surveys into what he claims is the 
first true attempt at measuring the beast. Here's a percentile table 
(1993 figures, using PPP US$):


     percentile      income
          5            238
         10            318
         15            373
         20            432
         25            496
         30            586
         35            658
         40            742
         45            883
         50          1,044
         55          1,165
         60          1,505
         65          1,857
         70          2,327
         75          3,006
         80          4,508
         85          6,563
         90          9,110
         95         13,241
         99         24,447

So, world median income is about US$1,044. Someone with a 
poverty-level income in the U.S. is at the 95th percentile of world 
income.

Doug


[This paper can be directly downloaded from the site as a pdf file.  I've taken a look 
at it - it's just the thing - MM]

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