Or you could just invest in index funds.

On Sun, Aug 11, 2019 at 6:17 PM Raul Miller <[email protected]> wrote:

> On Fri, Aug 9, 2019 at 7:22 PM Jose Mario Quintana
> <[email protected]> wrote:
> > :D  I was even quoting from the paper.
>
> You get a gold star.
>
> But how can I talk about what the paper says with you, when you are
> not acknowledging that it was said?
>
> > "the paper relied on no such idea" and "it's also not proposing 'a
> trading
> > strategy which beats the market'."
> >
> > That is too bad then because according to the paper,
> >
> > "On the contrary, finding those remaining profitable strategies would be
> a
> > paramount goal for many practitioners."
> >
> > So, I guess, practitioners look elsewhere!  (Are we reading the same
> paper?)
>
> We are.
>
> You're quoting from the motivations and definitions part of the paper.
>
> > "since the only use of the word 'beat' in the paper was a sentence
> > talking about two horses."
> >
> > You used the phrase "the market can't be beat." earlier in this thread
> > (remember?) and, for instance, Wikipedia uses "beat the market" in the
> > context of the EMH; instead you can think of, consistently producing
> > risk-adjusted excess returns, if that makes it easier for you (because
> you
> > cannot possibly be suggesting that the paper uses its own peculiar
> > independent definition of the EMH; that would explain a lot though).
>
> Yes, I did. But what was I using the phrase to say?
>
> > "But we need to make one other assumption that is currently not standard
> in
> > modern markets: we need to allow participants to place
> order-cancels-order
> > (“OCO”) or one-or-the-other orders. These are orders on different
> > securities that automatically cancel the remaining orders whenever one is
> > hit."
> >
> > Can you name any market where you can place these orders or are they
> still
> > in La La Land?
>
> If that is "La La Land" then you are emphasizing functioning markets
> being heavily regulated.
>
> Which would be accurate, by the way, though different countries
> regulate them in different ways.
>
> > The paper just claims "markets are probably not efficient;" but you go
> > further "even weak form market efficiency seems highly implausible."
> What
> > do you mean by "highly implausible"?  Where exactly in the paper is the
> > evidence that supports your claim?  (Can you at least mention the
> section?)
>
> That's a mix of the argument made in that paper with my observations
> on how things typically work.
>
> You're right that that's not something the paper says.
>
> But a better way of expressing my point of view is this:
>
> If we constrain ourselves to literal interpretations of the various
> published forms of the efficient market hypothesis, and limit
> ourselves to statement which are observably correct, then it's very
> difficult, and perhaps impossible, to find anything useful in what it
> says, except as a rough heuristic describing some properties of
> existing market regulations.
>
> Thanks,
>
> --
> Raul
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>


-- 

Devon McCormick, CFA

Quantitative Consultant
----------------------------------------------------------------------
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