Tuesday, January 17, 2017

Dubious Bargains

A few months ago I was in  Staples and saw they had 5 reams (a ream is 500 sheets) of printer paper on sale for $5.  I found the price irresistible so I bought a pack.  This is a good price but perhaps I should have passed.  I already had 2.5 reams on hand.  Since I use about 250 sheets a year this is a 5 year supply so I wasn't about to run out.  Furthermore the price wasn't really $5, it was $30.99 with a $25.99 rebate.  Since sales tax is charged on the price before the rebate the effective price was more like $6.70 (still a bargain of course).  And to get the rebate you had to apply (which fortunately you could do online) and then wait months to be mailed a prepaid debit card. Eventually I got an email saying my card was in the mail which seems unlikely as it took another 2 weeks or so to arrive.  But it finally came and it turned out to be simple enough to spend the balance at the place I usually buy lunch.  So things worked out but saving a few dollars probably wasn't worth the hassle.

It is also a little hard to understand how this benefits Staples.  Perhaps enough people fail to apply for or spend their rebates to make the deal profitable.  This seems a little unlikely but it would be interesting to know what the follow through rate is.  Or it could be some sort of promotion to get people comfortable with prepaid debit cards. However while the card was easy enough to use it doesn't seem to me to have any advantage over cash.   But at least the state of New Jersey came out ahead.

Tuesday, January 10, 2017

2016 Election

Some belated comments on the recent Presidential election.  I considered not voting as I was going to be out of state on election day and the result seemed a forgone conclusion.  However voting by absentee ballot isn't all that hard and it is never likely that your individual vote will matter.  So I ended up preserving my perfect record of always voting in Presidential elections.

I voted for Trump.  Obviously Trump is a seriously flawed candidate so this was more an anti-Clinton vote than a pro-Trump vote.  I got a hostile vibe from Clinton and many of her supporters, that they would prefer to win the election without my vote.  This of course didn't endear her to me.  For what it's worth I didn't get the same vibe from Obama. Perhaps he is more open minded or perhaps politics has just gotten more divisive in the last few years.  Anyway it's hard to get someone's vote if you are unwilling to ask them for it.

Of course once you have decided you don't like someone it is easy to find things about them that annoy you.  One such thing in Clinton's case is the nepotism angle.  When George Wallace got his wife elected Governor of Alabama (when he couldn't run himself) no one (as far as I know) claimed this was some great breakthrough for women.  But somehow if Bill Clinton had gotten his wife (who is unlikely to have become a national figure if she hadn't married Bill) elected President we were supposed to pretend she had accomplished this on her own and that it was some major feminist achievement.  Now this is hardly the only example of nepotism in politics but at least when there is a blood connection (as with the Bushes) there is a possibility that political talent runs in the family.

Another thing I found annoying about Clinton was her private email server.  Now you can certainly make the case that this while a dumb mistake wasn't that big a deal.  However in course of defending her, her supporters repeatedly made assertions contrary to my understanding of the regulations about handling classified information and preserving federal records.  Since my understanding is based on courses I am required to take every year as part of my job I am inclined to give it some weight.  Now one of the defenses made on her behalf is that these rules don't apply to the big shots.  While it is true as a practical matter that big shots can often get away with stuff that would get lower level people in trouble this is maybe a defense her supporters would have been better off not making.  

Saturday, January 7, 2017

State Tax Changes

Last November 1, New Jersey raised its state gas tax by 23 cents a gallon.  This was a pretty big increase, the old rate was 14.5 cents per gallon so the tax more than doubled but I didn't really object. The old rate was anomalously low and the roads have to be paid for somehow.  And the effect on me was insignificant.  I estimate I buy about 300 gallons of gas a year in New Jersey so the increase will cost me about $70 a year or a bit more than a penny a mile.

As part of the deal to raise the the gas tax the New Jersey sales tax was cut from 7% to 6.875% starting January 1, 2017 and to 6.625% starting January 1, 2018.  This affects me even less.  I estimate I spend about $10,000 a year subject to this tax.  So I will eventually save about $37.50 a year in sales tax or just over half of what the gas tax increase will cost me.

As noted above the first stage of the sales tax decrease was supposed to take effect on January 1, however I was a bit surprised to see the my local upscale supermarket still charging the old rate on Tuesday January 3.  However this was fixed by Wednesday and they apologetically refunded my nickle when I complained.

Sales tax rules tend to be complex and constantly changing so they impose a considerable compliance burden on businesses.  This is especially true for companies like Amazon who have to keep up with all the changes nationwide instead of just those affecting their particular location.  In my view any effort to make more out of state merchants collect sales tax needs to be coupled with simplification to reduce the compliance burden.

Sunday, December 25, 2016

Leela

Earlier this year I recommended the web based free computer Go program, Cosumi.  Leela is another free computer Go program.  Unlike Cosumi it runs on your computer.  I downloaded version 0.7.0 (the current version is 0.8.0) a few months ago.  I have played both programs quite a bit, mostly 9x9 games.

The programs have distinct styles.  Cosumi apparently plays to maximize its score.  This reduces its winning percentage because it doesn't play safe when ahead or take more risks when behind.  I have won many lost games because Cosumi loses a live group (or allows me to revive a dead group or both) while trying for 1 or 2 more points and misreading something.  Cosumi doesn't resign and will play games out to the end.  I like this as it allows me to practice my endgame and counting skills even if the game isn't close.

Leela on the other hand appears (like other Monte Carlo tree search programs such as Alpha Go) to play to maximize its winning percentage. This has some weird effects when Leela doesn't think the game is close as a bad move which loses some points may be hard to distinguish from a good move in terms of winning percentage.  So when Leela is ahead it will often chuck away points and end up winning by half a point although the game wasn't actually close.  And when Leela is behind at some point it will start making unsound moves in a desperate attempt to catch up.  If you keep your head and reply correctly Leela will then soon resign.  I don't like this behavior as I like to know what the margin of victory (or defeat) was.  Leela does have a "no resign" option which I haven't tried. By itself it won't help much as Leela still won't always be playing good moves if it doesn't think the game is close and the margin of victory may not be an accurate reflection of how close the game was.

Leela is the stronger program especially on the full 19x19 board.  Cosumi is competitive on the 9x9 board.  I matched the programs against each other in a 10 game 9x9 match and Leela only won 6-4. But when I tried a couple of 19x19 games Leela crushed Cosumi.  This is consistent with my experience.  I usually lose to Cosumi on 9x9 but easily won the two 19x19 games I tried against it. Cosumi seems to have trouble evaluating the safety of large groups and sometimes loses them because it fails to adequately secure them.  It's hard to win if you keep losing large groups.

Leela is a pretty simple program but it does have more options than Cosumi.  It has a rated game option in which it tries to adjust its strength to match yours.  And it has an analysis feature in which you can go over a game and see how Leela evaluates each position.  There isn't much documentation and there are additional features I would like to see but I can't complain too much about a free program.

Another difference between the programs is Cosumi uses Japanese (territorial) scoring while Leela uses Chinese (area) scoring.  This usually doesn't matter (it didn't come up in the games I had them play each other) but it can make a point or two difference which could change the result of a close game so it is something to be aware of.  There are also some slight differences in the rules which usually don't matter but sometimes do.

So in summary I would also recommend the Leela program if you are looking for a free computer Go opponent.  I found it easy to download and install on my Windows laptop (there also seems to be a Apple macOS version).  Leela is stronger especially on 19x19 and has more features but Cosumi also has things to recommend it.  And the different styles mean you can vary your experience by playing both.  It is said that constantly playing the same computer opponent can teach you bad habits as a computer program may consistently let you get away with certain bad moves.  Hopefully playing two quite different programs will lessen this problem.

Wednesday, December 21, 2016

Mercury Dime

A few days ago I noticed a strange dime sized silver coin in my change purse.  When I had a chance I looked at it more carefully.  It was very worn and I didn't immediately realize it was American.   However I eventually figured out it was a Mercury dime.  These were minted from 1916 to 1945.  My coin is dated 192?, perhaps 1920 with only the top left curve of the 0 still apparent.  It looks something like this but even more worn.  I must have received it in change fairly recently.  This is unusual as although the coin is too worn to have much value to collectors it has a silver value of about $1.15 and most such coins were removed from circulation long ago.  It is interesting to speculate on its history.  It obviously has been circulated heavily but presumably not recently or someone would have recognized it (as I did) and set it aside.  So my guess is it was out of circulation for a long time and then recently found and spent by someone who didn't recognize it as rare.

Thursday, October 13, 2016

Tax Loss Sale

Monday was Columbus Day.  This is a federal holiday which my employer observed but the stock market was open.  I took the opportunity to sell my position in ConocoPhillips (COP), a large American oil producer.  This was another of my ill-fated bets on peak oil so I realized a loss.  This will save me some money on my 2016 taxes. When I made a similar tax sale last year I estimated I would recover 25% of my loss.  This turned out to be low, according to TurboTax my actual recovery was about 32%.  I am unsure why the savings were in excess of the nominal statutory rates, perhaps my marginal rate is actually higher because I am subject to some phase outs of exemptions or credits. In any case this makes tax loss selling an even better idea.  I still find it painful however and had been putting it off.

I didn't reinvest the sale proceeds.  I had considered buying some more VDE (Vanguard's energy sector ETF) waiting 35 days (to avoid the wash sale rule) and then selling my current position in VDE (which also has an unrealized loss) and repurchasing the COP so as to maintain my current exposure to the energy sector (more or less) while realizing both losses. However I decided to just take the money out of the market for the moment.  My short term timing was okay as the COP is currently down some since I sold.

Thursday, October 6, 2016

Vin Scully

Last Sunday Vin Scully worked the final regular season Dodgers game (against the Giants in San Francisco) and then retired as the Dodgers play-by-play announcer.  He had started in 1950, before I was born and when the Dodgers were still in Brooklyn.  So a pretty remarkable career.

I can't say I listened to a lot of his broadcasts.  Growing up in Livermore, California I started following the Giants after they made the World Series in 1962.  Scully already had a reputation as a good announcer back then and some Giants fans preferred to tune in to the Dodgers broadcast when the two rivals played.  I don't recall being one of them but I certainly knew who he was and must have heard him at least a few times on the radio.  So his retirement brings back thoughts of times gone by.