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The Rising Returns to R&D: Ideas Are Not Getting Harder to Find

https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5242171
52•surprisetalk•4d ago

Comments

moomin•1h ago
Checking I understand this right: the paper’s contention is that more R&D, whilst still producing productivity gains, is invalidating gains made from other R@D? e.g. everyone developing their own LLM. It’s an interesting idea, but why would that be happening?
mensetmanusman•1h ago
If the OECD is to be believed, the elephant in the room is that China negated the value of western R&D by about $500B per year since 2010.

That’s why being a fast follower is so valuable, you get everyone else to waste money on the wrong ways to build things. It also causes R&D to show much worse returns.

exasperaited•1h ago
> That’s why being a fast follower is so valuable, you get everyone else to waste money on the wrong ways to build things. It also causes R&D to show much worse returns.

Frankly I think this is the big cultural change in tech generally, isn't it? People come up with ideas and everyone goes "oh I want to do that", so they replicate it off the back of the work everyone else has done. Uncritical FOMO.

But actually it's better to be an even slower follower, generally, as a survivor strategy. Apple and Nintendo shows this. It's better to go "I see what they are all doing, and I see where they think consumers are, but I think they are wrong, and I think it's not just a question of them going about it wrong, but that all of this evidence suggests consumers actually wish they were getting this other thing, and that is what we should build".

moron4hire•22m ago
Apple and Nintendo have some of the strongest brand loyalty this side of macrobrewed beer and sports teams. They can afford to go against the current because they have extremely deep barrels of fanatics who will buy just about anything they make, regardless of whether it's cutting edge or not.
woopwoop•50m ago
I do not, and have never, understood why absolute R&D investment is compared to relative growth rate in this literature. It would make sense to compare R&D spending as a percentage of GDP to relative growth, or to compare absolute R&D spending to absolute per-year growth, but I remain mystified by the comparison of absolute R&D spending with relative growth.
CyanLite2•37m ago
Their dataset only runs up to 2018?
jjk166•7m ago
They show R&D is effective and R&D spending is up, and conclude obsolescence must be the reason this is not reflected in productivity pretty much by process of elimination. However there is an alternative - that for reasons unrelated to R&D, productivity is actually being driven down, and ever increasing R&D output is necessary just to maintain current levels of productivity.

In particular, they are looking at US manufacturing. While this is a diverse industry, it's clear that in many subfields there is quite a bit of saturation. When everyone has a car, and cars last longer and longer, the need for new cars goes down. Once you get to a point where your industrial capacity can provide enough to satisfy demand, further R&D only reduces the costs of satisfying that demand, not increased output, and in some cases improvements to product quality may even further reduce demand. In the US, light vehicle sales peaked in 2000, and while the numbers dipped during various market downturns, they keep coming back to roughly the same asymptote. The numbers are even more striking if you break it down further - the annual demand for personal vehicles has fallen by a factor of 4 since 1965, and by a factor of 3 since 2000, the difference being made up by increased commercial vehicle demand. Looking at other industries like steel paints a similar picture.

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https://papers.ssrn.com/sol3/papers.cfm?abstract_id=5242171
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