RE: Increase in the flow of communication since 1970
--- Grey Thomas <[EMAIL PROTECTED]> wrote: "I'm sorry that I didn't immediately find the internet map showing the transfer of giga- and tera- bytes of data. I've seen such before, such info maps certainly exist." I've found a story I heard about, though it may be talking about stock rather than flow. Here are two web sites with news stories: www.emc.com/news/in_depth_archive/10192000_berkeley.jsp www.economist.com/science/displayStory.cfm?Story_ID=398206 "But what I find particularly noteworty is this fantastic map of internet relationships: http://www.orgnet.com/netindustry.html discussed elsewhere as: A jiggly power chart shows who really rules your world" I saw this on Techtv's The Screen Savers: www.touchgraph.com -jsh __ Do you Yahoo!? U2 on LAUNCH - Exclusive greatest hits videos http://launch.yahoo.com/u2
Re: EU
> > I don't know the evidence on the point, but you are proposing the expected > > utility model with risk neutrality. > > No, that's not it. I'm not saying people maximize expected earnings. > The functional form I'm proposing is the much weaker one that they > prefer higher expected earnings to lower expected earnings. I don't understand the difference. If I always prefer higher expected earnings, then by transitivity I will end up picking the highest, which is to say the maximum. Bill Sjostrom
RE: Increase in the flow of communication since 1970
Great question. I'm sorry that I didn't immediately find the internet map showing the transfer of giga- and tera- bytes of data. I've seen such before, such info maps certainly exist. But it's not really clear that there has been really that significant an increase in "information"; certainly not such an increase in the "value of information". How to estimate an info flow from a data flow? I don't know -- it's perhaps the difference between a video phone (with voice AND pictures), versus just a voice. Voice alone has 90% of the info, but is just 5-10% of the total voice+picture data, depending on the digital picture size/quality etc. But what I find particularly noteworty is this fantastic map of internet relationships: http://www.orgnet.com/netindustry.html discussed elsewhere as: A jiggly power chart shows who really rules your world Valdis Krebs' twitching girdle of media alliances I think that it is now computationally possible to have economic models displayed in such an interactive fashion, and allow a huge range of "playing with" to learn about different interactions. There may even be games like this, perhaps "Sim City" or something (I haven't played it). But it would be cool for an economics department to have something available for users to look at, learn from, and make predictions with. Does anybody know of any work being done in this vein? Tom Grey > -Original Message- > From: Jacob W Braestrup [mailto:jacob@;braestrup.dk] > Sent: 13 November, 2002 10:47 AM > To: [EMAIL PROTECTED] > Subject: Increase in the flow of communication since 1970 > > > Dear Armchairs > > I am trying to graphically illustrate the increase in the flow of > information since 1970. > > Has anybody got any ideas - that is data - showing how "the flow of > communication" has increased in that period??? > > any suggestions and ideas are welcome > > Sincerely > > Jacob Braestrup > Danish Taxpayers Association >
Re: EU
William Sjostrom wrote: > > I don't know the evidence on the point, but you are proposing the expected > utility model with risk neutrality. No, that's not it. I'm not saying people maximize expected earnings. The functional form I'm proposing is the much weaker one that they prefer higher expected earnings to lower expected earnings. The variance of gamble 1 is p(1-p)X^2, > which means that the variance is low for low and high values of p, and high > for middle values of p. So if p is low, as p is increased, both the mean > and variance rise. From my brief foray into the finance literature (I sat > on a Ph.D. committee in finance a few years back), my recollection is that > risk neutrality works badly. > Bill Sjostrom > > + > William Sjostrom > Senior Lecturer > Department of Economics > National University of Ireland, Cork > Cork, Ireland > > +353-21-490-2091 (work) > +353-21-427-3920 (fax) > +353-21-463-4056 (home) > [EMAIL PROTECTED] > [EMAIL PROTECTED] > www.ucc.ie/~sjostrom/ > > - Original Message - > From: "Bryan Caplan" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> > Sent: Monday, November 11, 2002 8:35 PM > Subject: EU > > > It's well-known that expected utility theory has a lot of problems. A > > number of alternative theories of choice under uncertainty haven't > > worked out too well either. > > > > Has anyone ever proposed a bare-bones theory of choice under > > uncertainty, basically saying only that all else equal, you become more > > likely to choose an option as it's expected value increases (without > > saying how much)? Suppose, for example, that you get to choose between > > two gambles: > > > > Gamble 1: $X with probability p. > > > > Gamble 2: $Y with probability q. > > > > Indicate preference with > or <, and probability as P(.). > > > > My bare bones theory says: > > > > 1. P(1>2) increases in p. > > 2. P(1>2) decreases in q. > > 3. P(1>2) increases in X. > > 4. P(1>2) decreases in Y. > > > > and nothing more specific. > > > > Is this inconsistent with any experimental evidence? > > -- > > Prof. Bryan Caplan > >Department of Economics George Mason University > > http://www.bcaplan.com [EMAIL PROTECTED] > > > > "He wrote a letter, but did not post it because he felt that no one > >would have understood what he wanted to say, and besides it was not > >necessary that anyone but himself should understand it." > >Leo Tolstoy, *The Cossacks* > > > > > > -- Prof. Bryan Caplan Department of Economics George Mason University http://www.bcaplan.com [EMAIL PROTECTED] "He wrote a letter, but did not post it because he felt that no one would have understood what he wanted to say, and besides it was not necessary that anyone but himself should understand it." Leo Tolstoy, *The Cossacks*
Increase in the flow of communication since 1970
Dear Armchairs I am trying to graphically illustrate the increase in the flow of information since 1970. Has anybody got any ideas - that is data - showing how "the flow of communication" has increased in that period??? any suggestions and ideas are welcome Sincerely Jacob Braestrup Danish Taxpayers Association
