Diminishing Marginal Returns

The productivity of our debt is collapsing and that is creating a major problem.

The problem is here now, and not in the future.

Here is why:

1)

Charted below is the increase in total debt and the increase in nominal GDP in the 8 quarters before each of the last six recessions.

In other words, how much did debt increase, and how much did GDP increase in the final two years of each economic expansion?

2)
As the chart shows, it is taking a larger amount of debt to increase GDP.

3)
Graphed another way, leading up to the 1980 recession it took about 1.94 dollars of debt to boost GDP by 1 dollar.

Leading up to the COVID recession saw debt increase nearly 6 dollars for each 1 dollar of GDP growth.

4)
Flipping the ratio shows the decline in the utility of debt.

We are only generating about 15-20 cents of growth for each dollar of debt.

This becomes a larger problem when we think about "growth rates" instead of nominal dollars.

5)
Before the 2007 recession, it took about $9T of debt to increase GDP by $1.3T. Or, it took about $9T of debt to increase nominal GDP by 4.9%/year in those two years.

The same $1.3T increase in nGDP only translated to a 3.2% growth rate per year leading up to 2020.

6)
In other words, $9T of debt got us ~5% nominal growth in 2005-2007 and only ~3% in 2018-2020.

The problem is here now because we know it will take about $10T of new debt to increase GDP by $1.5T.

That would only be an increase in growth of 3% nominal per year.

7)
As we continue to press down on this diminishing marginal returns curve, we will find ourselves using 8-10 units of debt for each dollar of growth, each dollar that generates a lower "growth rate" on a higher base.

8)
With any political division, Congress will not be able to authorize the spending needed to increase GDP by the same ~3% per year as the numbers are simply getting too large.

$10T in total debt growth won't even get us 3% nominal.

9)
If we have just 2% inflation then $10T in new debt will only lead to about 1% real growth.

At this stage of the game, no amount of government spending will translate to an increase in the standard of living (real GDP per capita).

The nonlinear decline continues.

10/10

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Brief thread to debunk the repeated claims we hear about transmission not happening 'within school walls', infection in school children being 'a reflection of infection from the community', and 'primary school children less likely to get infected and contribute to transmission'.

I've heard a lot of scientists claim these three - including most recently the chief advisor to the CDC, where the claim that most transmission doesn't happen within the walls of schools. There is strong evidence to rebut this claim. Let's look at


Let's look at the trends of infection in different age groups in England first- as reported by the ONS. Being a random survey of infection in the community, this doesn't suffer from the biases of symptom-based testing, particularly important in children who are often asymptomatic

A few things to note:
1. The infection rates among primary & secondary school children closely follow school openings, closures & levels of attendance. E.g. We see a dip in infections following Oct half-term, followed by a rise after school reopening.


We see steep drops in both primary & secondary school groups after end of term (18th December), but these drops plateau out in primary school children, where attendance has been >20% after re-opening in January (by contrast with 2ndary schools where this is ~5%).
@Suman68082748 @thetwinkwolff @x_karran_x @Sunil9130 Lets stop the criticism guys. The lad is good. Losses happen. Losses to unranked players happen too. As do wins vs top 10ers. Let's accept both. Remember Sumit and the likes of him are the best we have. See the bigger picture please.

@thetwinkwolff @x_karran_x @Sunil9130 When the Europeans or South Americans were getting quality practice and tourneys week in week out at reasonable costs, our kids were playing on dung courts or learning outdated serve and volley on grass. Appreciate the fact that the last 10 years have been a hell lot better than

@thetwinkwolff @x_karran_x @Sunil9130 the 10 before that. Real change can't come in a day or even in 10 years. So let's grit our teeth and bide our time till we have an organic self sustaining system in place.

@siyer30 @SportaSmile @Cric_Writer @RomilShukla @amanthejourno

@thetwinkwolff @x_karran_x @Sunil9130 @siyer30 @SportaSmile @Cric_Writer @RomilShukla @amanthejourno Tennis is my favourite sport in the universe. Has always been. Will always be. I was in love with Steffi and Pete a lot before I fell for Sachin. And while I would love every toddler in my family to play sports professionally, I won't encourage them to pursue my favourite sport.

@thetwinkwolff @x_karran_x @Sunil9130 @siyer30 @SportaSmile @Cric_Writer @RomilShukla @amanthejourno It will be career suicide. In other sports, I can actually plan for my ward to be the next Lin Dan or the next Tiger Woods or the next Schumacher even from a base in India. With tennis, in 2020 I can't do that realistically. Just doesn't adds up. Even for total freaks of nature.

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