Search found 199 matches

by Jacotus
Sun May 01, 2016 11:05 am
Forum: Investing - Theory, News & General
Topic: Jonathan Clements: higher % stocks -> higher % of stocks international
Replies: 14
Views: 1605

Re: Jonathan Clements: higher % stocks -> higher % of stocks international

From context, it's clear that he means: if you have a larger percentage of your portfolio in stocks, then a larger percentage of your stocks should be international. I don't actually think this is what Clements concludes, despite this dramatic first sentence: The more you have in stocks, the more y...
by Jacotus
Mon Apr 25, 2016 10:40 am
Forum: Personal Consumer Issues
Topic: PhD gift ideas
Replies: 17
Views: 971

Re: PhD gift ideas

+1 getting the diploma framed. It's a pretty good gift because many PhD grads don't want to have to spend the couple hundred dollars for it, but would appreciate it for a long time to come.
by Jacotus
Sun Apr 10, 2016 10:17 am
Forum: Investing - Theory, News & General
Topic: What percetage of Small Cap Value would approximate 50% total stock market
Replies: 11
Views: 1122

Re: What percetage of Small Cap Value would approximate 50% total stock market

I will Nth the praise for nisiprius explaining his process clearly.
by Jacotus
Fri Apr 08, 2016 9:53 am
Forum: Investing - Help with Personal Investments
Topic: Question on bizarre performance of S&P 500 Fund in Fidelity 401k plan
Replies: 10
Views: 997

Re: Question on bizarre performance of S&P 500 Fund in Fidelity 401k plan

I wonder if you are using the same set of endpoint dates. The problem is that the 1-3-5 numbers that are commonly quoted are usually "the last 1-3-5 years, up to now," where "now" is usually the end of the last month since they produced the numbers. Please go back and look at th...
by Jacotus
Fri Apr 08, 2016 2:17 am
Forum: Investing - Help with Personal Investments
Topic: Question on bizarre performance of S&P 500 Fund in Fidelity 401k plan
Replies: 10
Views: 997

Re: Question on bizarre performance of S&P 500 Fund in Fidelity 401k plan

With the ER of .02% you quoted, I would bet it's not a Mutual Fund you're being offered, but rather a Commingled Investment Trust "CIT" which has different reporting requirements than a mutual fund, they don't necessarily have daily quotations and whatever chart you're looking at may not ...
by Jacotus
Fri Apr 08, 2016 1:59 am
Forum: Investing - Help with Personal Investments
Topic: Question on bizarre performance of S&P 500 Fund in Fidelity 401k plan
Replies: 10
Views: 997

Question on bizarre performance of S&P 500 Fund in Fidelity 401k plan

For the first time in my life, I have access to a 401k. It's managed through Fidelity. There seems to be a very odd S&P 500 index fund option, with low expense ratio, that initially looked very good. Here are the main options: Fund; Gross Expense Ratio; Notes Target Retirement 2010-2060 0.06% --...
by Jacotus
Fri Apr 08, 2016 12:31 am
Forum: Investing - Theory, News & General
Topic: Financial Applications of Calculus of Variations?
Replies: 20
Views: 1596

Re: Financial Applications of Calculus of Variations?

Financial applications often use stochastic differential equations, and for every stochastic differential equation of Langevin type, there is a corresponding Fokker-Planck equation. There exists a stochastic calculus of variations whereby the Fokker-Planck equation can be cast into a stochastic Lagr...
by Jacotus
Sun Mar 27, 2016 11:02 am
Forum: Personal Finance (Not Investing)
Topic: The Urge to Splurge with Plastic NYT article
Replies: 30
Views: 2765

Re: The Urge to Splurge with Plastic NYT article

A closely related, well-known psychological effect is the endowment effect . One of the most famous examples of the endowment effect in the literature is from a study by Daniel Kahneman, Jack Knetsch & Richard Thaler,[4] in which participants were given a mug and then offered the chance to sell ...
by Jacotus
Mon Mar 21, 2016 11:39 am
Forum: Personal Finance (Not Investing)
Topic: Academic Prize and 1099-MISC
Replies: 15
Views: 1286

Re: Academic Prize and 1099-MISC

This reminds me of a time when a fellow PhD student at a top university insisted that her stipend was not taxable. I told her, not getting a W-2 doesn't mean you get off free, the IRS says plain as day that fellowship income is taxable. She didn't listen, and my mind boggled. I wonder how many grad ...
by Jacotus
Thu Mar 17, 2016 11:23 am
Forum: Investing - Help with Personal Investments
Topic: Better to use backdoor Roth IRA when close to income limit?
Replies: 3
Views: 354

Re: Better to use backdoor Roth IRA when close to income limit?

Thanks for your comments. You're right, I expect that in a few years my income will be over the limit anyway, so no harm in getting used to the process now.
by Jacotus
Thu Mar 17, 2016 10:21 am
Forum: Investing - Help with Personal Investments
Topic: Better to use backdoor Roth IRA when close to income limit?
Replies: 3
Views: 354

Better to use backdoor Roth IRA when close to income limit?

I project that my total income will be close to but a little under the Roth IRA income limit. In general, I'd prefer to contribute to the Roth IRA at the beginning of each year. However, there's the possibility that I might have some unexpected income if, late in the year, I decide to sell some stoc...
by Jacotus
Thu Feb 25, 2016 2:31 pm
Forum: Personal Finance (Not Investing)
Topic: Grad student W2 - no SS and no Medicare
Replies: 7
Views: 648

Re: Grad student W2 - no SS and no Medicare

As a graduate student with a stipend, at different times I: ⋅  Had no W2 and no FICA taken out ⋅  Had a W2 and had FICA taken out ⋅  Had a W2 and no FICA taken out So it's certainly possible and depends on exactly how the money is received (Fellowship, TAship, etc). Asi...
by Jacotus
Tue Feb 09, 2016 12:15 pm
Forum: Personal Consumer Issues
Topic: Nest Thermostat: Worth it
Replies: 19
Views: 2336

Re: Nest Thermostat: Worth it

Misleading title alert!
by Jacotus
Fri Aug 07, 2015 10:01 pm
Forum: Local Chapters and Bogleheads Community
Topic: Congrats to Laura Dogu
Replies: 67
Views: 8782

Re: Congrats to Laura Dogu

Congrats, Ambassador Dogu! Such a well-deserved honor for the Queen among us :D
by Jacotus
Thu May 28, 2015 10:28 am
Forum: Investing - Help with Personal Investments
Topic: Need 60k for downpayment, take from VTIAX or VTSAX?
Replies: 11
Views: 1031

Re: Need 60k for downpayment, take from VTIAX or VTSAX?

Do you have a 401k or IRA account you can rebalance with?
by Jacotus
Tue Jan 13, 2015 1:43 am
Forum: Investing - Theory, News & General
Topic: Can you make money betting on random coin flips?
Replies: 296
Views: 20996

Re: Can you make money betting on random coin flips?

I still like the idea of splitting it up into 100 bets of $1 each, if there's no limits. Diversification, essentially. If you do that, every time you do you would expect to end up with about $125. Then make 125 bets of $1 each. Keep going infinitely. Ideally, you would have a computer program that ...
by Jacotus
Mon Jan 12, 2015 6:13 pm
Forum: Investing - Theory, News & General
Topic: Can you make money betting on random coin flips?
Replies: 296
Views: 20996

Re: Can you make money betting on random coin flips?

@Jacotus, you are dredging up old misconceptions (as had some other people before) that had already been dealt with earlier in the thread. Read the thread. You said "I am not a mathematician, but I am a physicist who spends most my time doing math." Then surely you should be able to easil...
by Jacotus
Mon Jan 12, 2015 3:31 pm
Forum: Investing - Theory, News & General
Topic: Can you make money betting on random coin flips?
Replies: 296
Views: 20996

Re: Can you make money betting on random coin flips?

I said this earlier but no one has commented on it. I am fairly certain that this is the "intuitive" reason why the strategy that maximizes log W (or growth rate) is perceived as better in some situations. Because the logarithm compresses the dynamic range of the outcomes, it reduces the ...
by Jacotus
Mon Jan 12, 2015 12:14 pm
Forum: Investing - Theory, News & General
Topic: Can you make money betting on random coin flips?
Replies: 296
Views: 20996

Re: Can you make money betting on random coin flips?

As I stated earlier , one simply cannot "prove" that any strategy is optimal by merely looking at some expected value. Any given strategy, chosen, say, so as to maximize wealth, or to maximize growth rate, leads to a probability distribution of outcomes with some dispersion of events. If o...
by Jacotus
Sun Jan 11, 2015 1:24 pm
Forum: Investing - Theory, News & General
Topic: Can you make money betting on random coin flips?
Replies: 296
Views: 20996

Re: Can you make money betting on random coin flips?

... [lots of good stuff] ... These results aren't going to surprise anyone but seeing it on a chart makes me more comfortable, and underlines the enormous difference between log of mean wealth and mean of log wealth... and I am still struggling with why we want the log. (Yes, I get it that it's mor...
by Jacotus
Fri Jan 02, 2015 4:49 pm
Forum: Investing - Theory, News & General
Topic: Vanguard states ERs to 3 places!
Replies: 25
Views: 3110

Re: Vanguard states ERs to 3 places!

1) I would be skeptical that the person who made the change to the website was thinking about significant figures, and made a conscious decision to put two instead of one significant figure. 2) There is little reason, in my mind, to doubt that Vanguard's stated ER of 0.05% is not exact, at least to...
by Jacotus
Fri Jan 02, 2015 4:27 pm
Forum: Investing - Theory, News & General
Topic: Vanguard states ERs to 3 places!
Replies: 25
Views: 3110

Re: Vanguard states ERs to 3 places!

1) I would be skeptical that the person who made the change to the website was thinking about significant figures, and made a conscious decision to put two instead of one significant figure. 2) There is little reason, in my mind, to doubt that Vanguard's stated ER of 0.05% is not exact, at least to ...
by Jacotus
Sun Nov 16, 2014 4:04 pm
Forum: Investing - Theory, News & General
Topic: ETF=passive, while mutual funds (including index) = active ?
Replies: 7
Views: 901

Re: ETF=passive, while mutual funds (including index) = acti

I have been here long enough to know what we call active and passive :happy. My real question is: why did this other person say what they said? Was it something particular to the individual, or was Fidelity, as some kind of corporate practice, teaching their brokers that ETF=passive and mutual funds...
by Jacotus
Sun Nov 16, 2014 11:19 am
Forum: Investing - Theory, News & General
Topic: ETF=passive, while mutual funds (including index) = active ?
Replies: 7
Views: 901

ETF=passive, while mutual funds (including index) = active ?

Here's a conundrum. I had a conversation with a person who until recently worked at Fidelity. In what capacity, I don't know, but the person mentioned taking a Series 7, which I gather is some sort of exam for brokers but I don't know much else about it. Somehow active vs. passive investing came up,...
by Jacotus
Tue Mar 04, 2014 11:46 am
Forum: Forum Issues and Administration
Topic: Bogleheads.org Home Page Updated
Replies: 230
Views: 70959

Re: Bogleheads.org Home Page Updated

One thing I would really like to see is a "Go to first unread post" on the homepage OR, an entry telling me which sub forum the thread is in so I can go to that sub forum and click on the little "first unread" symbol to the left of the thread. Perhaps as simple as reusing that s...
by Jacotus
Fri Feb 21, 2014 11:12 pm
Forum: Investing - Theory, News & General
Topic: Poll: Which of these abbreviations do you understand?
Replies: 66
Views: 2938

Re: Poll: Which of these abbreviations do you understand?

Came here to joke about VCR... I see I was beaten to it, many times (oh, how unoriginal I am). For the record, I assumed nisiprius was not going for the old technology and didn't click on it, nor KO (knock-out), as I don't know any finance-related abbreviations for these.
by Jacotus
Wed Jan 29, 2014 2:46 pm
Forum: Investing - Theory, News & General
Topic: MYRA OFF TOPIC UNTIL ACTIONABLE (merged threads)
Replies: 68
Views: 5419

Re: MYRA OFF TOPIC UNTIL ACTIONABLE (merged threads)

richard wrote:The G Fund is the Government Securities Investment Fund.

https://www.tsp.gov/investmentfunds/fun ... ce_G.shtml

I am aware. I was expressing my great surprise that it is being made available to everyone.
by Jacotus
Wed Jan 29, 2014 2:41 pm
Forum: Investing - Theory, News & General
Topic: MYRA OFF TOPIC UNTIL ACTIONABLE (merged threads)
Replies: 68
Views: 5419

Re: MYRA OFF TOPIC UNTIL ACTIONABLE (merged threads)

Here's a description: http://www.whitehouse.gov/the-press-office/2014/01/28/fact-sheet-opportunity-all-securing-dignified-retirement-all-americans From this link: Favorable Investment Return: Same Secure Investment Return Available to Federal Employees. Savers will earn interest at the same variabl...
by Jacotus
Fri Jan 17, 2014 11:55 am
Forum: Personal Consumer Issues
Topic: Thinning the Herd - what do you do with unwanted DVDs?
Replies: 69
Views: 4824

Re: Thinning the Herd - what do you do with unwanted DVDs?

How do you end up with unwanted DVDs? There is no limit to the number of times I will watch the Sound of Music, American Graffiti, or West Side Story (if spread out over a suitable number of years). I would guess it's about the space they take up. It's just like with books. With most of these, we r...
by Jacotus
Fri Jan 17, 2014 12:26 am
Forum: Personal Finance (Not Investing)
Topic: Biggest regrets in your life in financial investment?
Replies: 101
Views: 10855

Re: Biggest regrets in your life in financial investment?

I am afraid I have nothing to share at the moment. Reading these posts makes me so thankful that I found the Bogleheads before I ever dipped my toe into the market.
by Jacotus
Fri Jan 17, 2014 12:21 am
Forum: Personal Consumer Issues
Topic: Rule of 752 [savings tip]
Replies: 8
Views: 2053

Re: Rule of 752

I'd rather have internet access than an extra $15k in 10 years. Without internet access how will I spend time on the Bogleheads website?
by Jacotus
Thu Jan 09, 2014 10:44 pm
Forum: Forum Issues and Administration
Topic: Bogleheads.org Homepage
Replies: 76
Views: 5281

Re: Bogleheads.org Homepage

LadyGeek wrote:That would be this board link, which you can bookmark: View unread posts

Excellent, thank you!! I can't believe I have been at this forum for years without using that...
by Jacotus
Thu Jan 09, 2014 11:07 am
Forum: Forum Issues and Administration
Topic: Bogleheads.org Homepage
Replies: 76
Views: 5281

Re: Bogleheads.org Homepage

I like the current style of listing all recent threads from all boards. I wouldn't mind if it moved to a different page so the home page could be more newbie-friendly. This is somewhat off-topic, but I was wondering if it would be possible to splice the "view first unread post" feature fro...
by Jacotus
Wed Oct 02, 2013 12:56 pm
Forum: Personal Consumer Issues
Topic: London and Paris Hotels
Replies: 48
Views: 4741

Re: London and Paris Hotels

If you'll be in a city for a week or longer, it can be a lot more convenient to rent an apartment (or as the Brits say, a flat). As mentioned above, VRBO etc. are possibilities, but there are other options as well. There are rental-management agencies that perform the same function as VRBO (rent out...
by Jacotus
Sat Sep 21, 2013 8:44 pm
Forum: Personal Finance (Not Investing)
Topic: ACA: Pay penalty?
Replies: 34
Views: 2896

Re: ACA: Pay penalty?

rkhusky wrote:The OP is in error. There is no penalty for not purchasing insurance, instead you pay an alternate tax.

A rose by any other name...
by Jacotus
Mon Dec 31, 2012 1:42 pm
Forum: Personal Consumer Issues
Topic: Interesting Free Math Books
Replies: 40
Views: 3097

Re: Interesting Free Math Books

555 wrote:According to one of the mods
viewtopic.php?f=3&t=6&p=1234798&hilit=codecogs#p1234798
we're not allowed to use that. :confused

Oh, that's unfortunate. Thanks for pointing that out. I removed the image from my post.
by Jacotus
Mon Dec 31, 2012 12:47 am
Forum: Personal Consumer Issues
Topic: Interesting Free Math Books
Replies: 40
Views: 3097

Re: Interesting Free Math Books

555 wrote:
Bungo wrote:"I will look forward to pretty 3d pictures from nisiprius!"


I will look forward to pretty 4d pictures to show

[\sum_{k=1}^{n} k]^2=\sum_{k=1}^{n} k^3

or longhand

[1+2+3+...+n]^2=[1^3+2^3+3^3+...+n^3]

Test
[removed image]
by Jacotus
Sun Dec 30, 2012 8:53 am
Forum: Personal Consumer Issues
Topic: Interesting Free Math Books
Replies: 40
Views: 3097

Re: Interesting Free Math Books

Here's another one to play with: Show Sum(n=1,N) n^3=(N(N+1)/2)^2 I haven't tried this one yet, so can't offer a solution. If one is willing to accept that Sum(n=1,N) n^m is a polynomial in N of degree m+1, which should be at least plausible based on your m=1 case, then there is a straightforward a...
by Jacotus
Sat Dec 29, 2012 5:58 pm
Forum: Personal Consumer Issues
Topic: Interesting Free Math Books
Replies: 40
Views: 3097

Re: Interesting Free Math Books

The two examples in the OP are equivalent.
by Jacotus
Sun Dec 23, 2012 4:11 pm
Forum: Investing - Help with Personal Investments
Topic: Advice with Small Windfall
Replies: 30
Views: 2099

Re: Advice with Small Windfall

This is easy. Wipe out the loans.
by Jacotus
Thu Dec 06, 2012 9:10 pm
Forum: Investing - Help with Personal Investments
Topic: Vanguard Investor vs. Admiral. exp ratio bottom line
Replies: 20
Views: 1534

Re: Vanguard Investor vs. Admiral. exp ratio bottom line

This chart is not plausible and is not showing the difference between admiral and investor shares returns. See how all the difference happens in the first few months and then the lines are essentially parallel. I can't say if this is an artifact of the plotting software, a data error, or if Vanguar...
by Jacotus
Sun Dec 02, 2012 11:32 pm
Forum: Personal Consumer Issues
Topic: Vanguard is on the Password Hall of Shame.
Replies: 250
Views: 45551

Re: Vanguard is on the Password Hall of Shame.

No. They would open a fraudulent bank account, change the transfer instructions, and transfer the money to that. I am in complete agreement with you that stronger passwords should be usable at Vanguard. However, there are extra layers to deal with the above issue. Someone correct me if I'm wrong, b...
by Jacotus
Sun Dec 02, 2012 9:43 pm
Forum: Personal Consumer Issues
Topic: Vanguard is on the Password Hall of Shame.
Replies: 250
Views: 45551

Re: Vanguard is on the Password Hall of Shame.

Because accounts get locked after X number of incorrect login attempts, I don't know that a 45 character password is more secure than a 10 character one. Offline password cracks dont get locked out, they could brute force you password to hearts content. That's the worry here. That some VG employee ...
by Jacotus
Sat Dec 01, 2012 8:05 pm
Forum: Investing - Theory, News & General
Topic: Time invested in Investing
Replies: 27
Views: 1783

Re: Time invested in Investing

Agreed with others. Now that I have learned why the Bogleheads approach to investing is the superior one, I don't need to keep reading about investing. But I read this forum anyway, for fun, and I still do learn some things now and then. Also, if I stopped reading I would miss out on gems like this ...
by Jacotus
Tue Nov 20, 2012 10:20 pm
Forum: Investing - Theory, News & General
Topic: Grok's Tip #13: But Vanguard will tell you that...
Replies: 71
Views: 9867

Re: Grok's Tip #13: But Vanguard will tell you that...

Excellent post! I could not agree more with your point. Nobody has time to be experts in every single thing out there, so it is nice to have an authority out there one can turn to. In the end, we all have to trust someone , if we aren't going to build up an entire scholarly field from scratch. Picki...
by Jacotus
Fri Oct 26, 2012 9:03 am
Forum: Personal Consumer Issues
Topic: 'Phi Kappa Phi' membership. Worth it?
Replies: 27
Views: 14175

Re: 'Phi Kappa Phi' membership. Worth it?

Don't do it. It's just a way to get your money.
by Jacotus
Sun Oct 14, 2012 10:43 pm
Forum: Investing - Theory, News & General
Topic: POLL: Which is more diversified?
Replies: 31
Views: 2422

Re: POLL: Which is more diversified?

Rodc wrote:I suspect the answer will hing on how each person defines "diversified". Without a common definition what looks like an argument about which is more diversified will really be an argument about the definition.

In my experience, many, many arguments can be boiled down to this.
by Jacotus
Sat Sep 29, 2012 10:17 pm
Forum: Investing - Help with Personal Investments
Topic: VG International VS TSM & Cash Reserves
Replies: 7
Views: 410

Re: VG International VS TSM & Cash Reserves

I thought I remember someone here (maybe Rick Ferri?) saying if you're going to buy international equities in a TAXABLE Account, then FTSE All world ex-US was better than Total International due to Total International being a "fund of funds" and subject to different (higher) taxes (accord...
by Jacotus
Sat Sep 22, 2012 11:27 am
Forum: Personal Consumer Issues
Topic: bank error in your favor - not!
Replies: 26
Views: 3036

Re: bank error in your favor - not!

jebmke wrote:I cut my teeth on mainframes. When an IBM mainframe job failed to run, the typical message had a lot of technical jargon but, at the bottom, every message had the line "probable user error."

Hah, I love it.

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