to your HTML Add class="sortable" to any table you'd like to make sortable Click on the headers to sort Thanks to many, many people for contributions and suggestions. Licenced as X11: http://www.kryogenix.org/code/browser/licence.html This basically means: do what you want with it. */ var stIsIE = /*@cc_on!@*/false; sorttable = { init: function() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so we don't do the same thing twice arguments.callee.done = true; // kill the timer if (_timer) clearInterval(_timer); if (!document.createElement || !document.getElementsByTagName) return; sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; forEach(document.getElementsByTagName('table'), function(table) { if (table.className.search(/\bsortable\b/) != -1) { sorttable.makeSortable(table); } }); }, makeSortable: function(table) { if (table.getElementsByTagName('thead').length == 0) { // table doesn't have a tHead. Since it should have, create one and // put the first table row in it. the = document.createElement('thead'); the.appendChild(table.rows[0]); table.insertBefore(the,table.firstChild); } // Safari doesn't support table.tHead, sigh if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; if (table.tHead.rows.length != 1) return; // can't cope with two header rows // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as // "total" rows, for example). This is B&R, since what you're supposed // to do is put them in a tfoot. So, if there are sortbottom rows, // for backwards compatibility, move them to tfoot (creating it if needed). sortbottomrows = []; for (var i=0; i
Or rather, how much is saving time really worth to you?
We were inspired to create our newest tool by recent posts by Jim at Blueprint for Financial Prosperity and also by Cathryn Sykes at MoneyToSpare, who provided the math.
Jim, as we recently noted in the latest edition of OMM, saved a lot of out-of-pocket money by butchering his own chicken, but wondered if it was really worth his time to do all the extra work, rather than just buying the various chicken parts already prepared. Cathryn wondered the same thing about buying pre-peeled onions, pre-manufactured lunches for children, and baking a pie from scratch.
We've set up the tool to answer Jim's question about whether or not it's worth his extra time to do his own chicken butchery, but you're more than welcome to change the input values according to the make-vs-buy scenario you may be more interested in. We'll have some more thoughts below the tool on how to interpret the results.
Here, the effective cost of paying someone else to do the work per hour is your guide to establishing whether or not it makes sense for you to buy a pre-made product (or service) or to do the work yourself.
Here's how it works: If you believe the tool's result is low, then it makes sense to buy the item in a more finished state, rather than doing any additional work yourself. If you believe the value is high, then that's your sign that you should do the work yourself.
Using Jim's chicken butchering exercise as our example, we find that in buying the chicken parts pre-butchered, Jim would effectively be paying someone else $7.22 per hour. If Jim values his time at more than that $7.22 per hour, then it makes sense for Jim to buy his chicken already prepared, versus butchering it himself.
If Jim can cut his time in butchering a chicken in half, to 15 minutes, his effective cost per hour of having someone else do the work rises to $14.44. In that case, Jim may find it more desirable to butcher the chicken himself.
And now you have the tool you need to work out the same kind of problems for yourself! If it helps encourage you to use the tool, we found that we saved about 9 seconds (9/60) in using the tool above rather than doing the math by hand for a similar problem. If we assumed that we charged a "tool usage fee" of one penny to use our tool, that works out to be the same as paying someone else about $4.00 per hour to do the math for you.
If it takes you longer to do the math by hand, then the savings get even bigger. And considering that we don't charge you anything to use our tools, then the verdict is clear: Political Calculations is the only blog that really saves you both time and money!
Welcome to the blogosphere's toolchest! Here, unlike other blogs dedicated to analyzing current events, we create easy-to-use, simple tools to do the math related to them so you can get in on the action too! If you would like to learn more about these tools, or if you would like to contribute ideas to develop for this blog, please e-mail us at:
The S&P 500 at Your Fingertips
Mapping S&P 500 Performance, Since 1871
Should You Trade In Your Gas Guzzler?
What Are the Chances Your Marriage Will Last?
Reckoning the Odds of Recession
Your 2009 Paycheck
Tipping Around the World
Revisiting the Lottery
Estimating Your Life Expectancy
Connecting the Dots for Personal Income Taxes
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On the Moneyed Midways
A Lot, But Not All, of Our Tools
Political Calculations' Recession Probability Track shows the probability that the U.S. economy will be in recession 12 months from the indicated date (shown in red) while revealing the probability trend over the past four years.
Previously, the probability of recession peaked at 50% on 4 April 2007, which means that March-April 2008 was the most likely period in which the NBER would have found the U.S. to be in recession.
As it happens, they almost did. The NBER instead chose December 2007 as the beginning month of the most recent recession (we had found a 46% probability for a recession beginning in that month!)
Political Calculations is also the online home of On the Moneyed Midways (aka OMM), a review of the best posts contributed to the week's best business and money-related blog carnivals. More than that, we also name one post in each edition as being The Best Post of the Week, Anywhere! and at the end of each year, we name The Best Post of the Year, Anywhere! as well as identifying the best blogs we found during the course of the year!
The link below will take you to the running index containing our most recent back issues (you can easily navigate the index to find older editions.)
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