1/Today in @bopinion, I talk about the legacy and career of Jim Simons, the founder of Renaissance Technologies, who is stepping down as the hedge fund's

2/Simons' fund beat the market -- consistently, by huge percentages, after fees.

That's an astonishing accomplishment.

https://t.co/uopG6WutzU
3/How did he do it?

Basically, by being relentlessly smarter and better-managed than the competition.

https://t.co/p6ZTd7POfQ
4/So does Simons' success mean markets are inefficient?

Yes and no.

Obviously yes, since Renaissance could (and can) beat the market. But there are a few key caveats...
5/First of all, RenTech's most eye-popping and consistent returns are in its flagship Medallion Fund.

But most investors can't invest in that fund. It doesn't take your money.

https://t.co/sTXUzl09Lc
6/In fact, the Medallion Fund doesn't even take *its own* money. It makes regular profit distributions, so that the fund's total size remains small -- around $10 billion or so.

https://t.co/bhqE71eSdH
7/This means that the Medallion Fund's famous 39% annualized return (after fees) doesn't compound.

If it did, Medallion would be worth far more than all the rest of the hedge funds in the world combined, by now!
8/So a fund like Medallion isn't really comparable to, say, the return of the S&P. One compounds, the other does not.

Why? Because the market inefficiencies Medallion exploits are limited in size. And thus, Medallion's profit opportunities are limited in size.
9/To address this, Renaissance made a bunch of other funds that do different things than Medallion, and whose strategies scale up more. These have done generally well, but they're no Medallion...

https://t.co/ZsXQ4NNUI8
10/Even as Medallion racked up huge gains in 2020, Renaissance's other funds largely tanked.

This shows that consistently beating the market AT SCALE is incredibly hard, even for the smartest and best-managed people on the planet.

https://t.co/oowJd3k8GH
11/That's no knock against Renaissance, of course. They're the best in the biz.

But it does mean that Renaissance's existence doesn't prove that stock markets are inefficient. Indeed it shows us just how not-so-hugely-inefficient they are!

(end)

https://t.co/uopG6WutzU

More from Noahtogolpe 🐇

1/I'm thinking about the end of Apu in the context of the national debates on immigration and diversity.


2/Apu's presence in Springfield represented a basic reality of America in the late 20th and early 21st century: the presence of nonwhite immigrants.

3/As Tomas Jimenez writes in "The Other Side of Assimilation", for my generation, immigrants from India, China, Mexico, and many other countries aren't strange or foreign. On the contrary, they're a

4/But that America I grew up with is fundamentally ephemeral. The kids of immigrants don't retain their parents' culture. They merge into the local culture (and, as Jimenez documents, the local culture changes to reflect their influence).

5/Simpsons character don't change. But real people, and real communities, do. So a character who once represented the diversity that immigrants brought to American towns now represents a stereotype of Indian-Americans as "permanent foreigners".
This thread demonstrates that a lot of academic writing that *looks* like utter nonsense is merely scholars dressing up a useful but mundane point with a ton of unnecessary jargon.


My theory is that the jargon creates an artificial barrier to entry. https://t.co/MqLyyppdHl

If one must spend years marinating one's brain in jargon to be perceived as an expert on a topic, it protects the status and earning power of people who study relatively easy topics.

In econ, a similar thing is accomplished by what recent Nobel prize winner Paul Romer calls "mathiness": https://t.co/DBCRRc8Mir

But mathiness and jargon are not quite the same...

Jargon usually doesn't force you to change the substance of your central point.

Mathiness often does. By forcing you to write your model in a way that's mathematically tractable (easy to work with), mathiness often impoverishes your understanding of how the world really works.

has written about this problem:

More from Government

This is a good piece on fissures within the GOP but I think it mischaracterizes the Trump presidency as “populist” & repeats a story about how conservatives & the GOP expelled the far-right in the mid-1960s that is actually far more complicated. /1

I don’t think the sharp opposition between “hard-edge populism” & “conservative orthodoxy” holds. Many of the Trump administration’s achievements were boilerplate conservatism. Its own website trumpets things like “massive deregulation,” tax cuts, etc. /2

https://t.co/N97v85Bb79


The claim that Buckley and “key GOP politicians banded together to marginalize anti-Communist extremism and conspiracy-mongering” of the JBS has been widely repeated lately but the history is more complicated. /3


This tweet by @ThePlumLineGS citing a paper by @sam_rosenfeld and @daschloz on the "porous" boundary between conservatives, the GOP and the far-right is relevant in this context.


This is a separate point but I find it interesting that Gaetz, like Roy Moore did In his failed Senate campaign, disses McConnell. What are their actual policy differences? MM supported taking health care away from millions, a tax cut for the rich, conservative judges, etc. /5
Labour Grandees are listed in Sir Keir Starmer's colleague Jeffrey Epstein's ''Little Black Book''; Blair, Mandelson and Alastair Campbell. COINCIDENTLY, Keir Starmer and some of the same people have connections to ANOTHER of the worlds most prolific peadophiles. #StarmerOut


Starmer failed to bring charges against Jimmy Savile for paedophilia. The decision was made despite the Crown Prosecution Service receiving substantial evidence of his crimes from witnesses and victims several years before Savile died in 2011. #StarmerOut
https://t.co/PNyX5uSAkw


With a past like hers, Margaret Hodge might show a bit more humility.
In the Eighties Hodge was aware of previous child sex abuse in the care homes for which she was responsible, and did nothing about it. #LabourLeaks #StarmerOut

As leader of Islington Council, a post she held from 1982-92, Margaret Hodge was aware of previous, horrendous child sex abuse in the care homes for which she was responsible, and did nothing about it. #LabourLeaks #StarmerOut #CSA

She was guilty of rather more than a casual failure of oversight. In an open letter to the BBC after it investigated a range of monstrous abuse (child prostitution, torture, alleged murders), Hodge libelled one of its victims as “seriously disturbed”. #LabourLeaks #StarmerOut

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॥ॐ॥
अस्य श्री गायत्री ध्यान श्लोक:
(gAyatri dhyAna shlOka)
• This shloka to meditate personified form of वेदमाता गायत्री was given by Bhagwaan Brahma to Sage yAgnavalkya (याज्ञवल्क्य).

• 14th shloka of गायत्री कवचम् which is taken from वशिष्ठ संहिता, goes as follows..


• मुक्ता-विद्रुम-हेम-नील धवलच्छायैर्मुखस्त्रीक्षणै:।
muktA vidruma hEma nIla dhavalachhAyaiH mukhaistrlkShaNaiH.

• युक्तामिन्दुकला-निबद्धमुकुटां तत्वार्थवर्णात्मिकाम्॥
yuktAmindukalA nibaddha makutAm tatvArtha varNAtmikam.

• गायत्रीं वरदाभयाङ्कुश कशां शुभ्रं कपालं गदाम्।
gAyatrIm vardAbhayANkusha kashAm shubhram kapAlam gadAm.

• शंखं चक्रमथारविन्दयुगलं हस्तैर्वहन्ती भजै॥
shankham chakramathArvinda yugalam hastairvahantIm bhajE.

This shloka describes the form of वेदमाता गायत्री.

• It says, "She has five faces which shine with the colours of a Pearl 'मुक्ता', Coral 'विद्रुम', Gold 'हेम्', Sapphire 'नील्', & a Diamond 'धवलम्'.

• These five faces are symbolic of the five primordial elements called पञ्चमहाभूत:' which makes up the entire existence.

• These are the elements of SPACE, FIRE, WIND, EARTH & WATER.

• All these five faces shine with three eyes 'त्रिक्षणै:'.