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John Yang

๐Ÿ‘ค Speaker
224 total appearances

Appearances Over Time

Podcast Appearances

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

That is what we mean by the marginal shape score.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

It considers things like quantile gap, skewness, kurtoltis, and downsize loss measures like CVAR.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

And the second metric we look at is if our model does better on the tail.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

This measure is mainly driven by the tail quantile gap.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

And third, we also ask, does the model still preserve how assets move together?

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

So that is the correlation structure that I talked about at the start of this presentation.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

We are measuring this using a basket of correlation measures like Pearson and Kendall, which some argue are more realistic.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

We're basically combining all of them together to capture all of it.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

That's actually like exactly what we were expecting.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

Because for marginal and tail shape, that's where our method is mainly improving in.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

That's because we're using the empirical distribution of return rather than assuming a bell curve shape.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

That's why it does a lot better in marginal and tail shape.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

But for co-movement, our goal is to be on par with the Gaussian method.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

That is because in the Gaussian method,

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

The goal is to optimize for that correlation structure that was given to the model.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

So it is doing a very good job at it.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

And we are actually surprised that we didn't have to compromise any of the cold movement score to get a better marginal Intel score in that sense.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

But yeah, it's great to have.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

Well, we've only been working on this for the past five months, and this is like far from perfect.

The Rational Reminder Podcast
Market Simulations & Financial Planning | #411 (John Yang)

There are a lot of things that we still can do and will do in the coming semesters.