Hector Pollitt
banner
hectorpollitt.bsky.social
Hector Pollitt
@hectorpollitt.bsky.social
Economist and macroeconomic modeller, working mainly on climate change. Advocate of economic pluralism. #CambridgeTradition #Complexity
Ha! The old problem of how to interpret 'everyone optimizes except the energy sector'.

A lot can be fudged by assuming linearity and because models are mostly linear. But if we ever get to linking models where small differences get amplified over time/space we will really need to tighten.
October 14, 2025 at 6:38 PM
Lack of productivity growth is a big deal in the UK. But there need not be a trade-off between productivity growth and net-zero. In fact the two may be complementary (and this can be modelled!). It’s time to change the story.
August 6, 2025 at 3:13 PM
This drives productivity growth, almost by definition. We get more electricity, more mobility, more services, for lower cost. We can spend more on other things.
August 6, 2025 at 3:13 PM
There is a critical difference between fossil fuels and new technologies.

We spend more on fossil fuels, we exhaust cheap supplies and prices go up. We spend more on new technologies, we learn and prices go down.
August 6, 2025 at 3:13 PM
The paper focuses on two key assumptions that have dominated previous work: 1) green technologies are more expensive; 2) spending on green technologies means less spending on other things. Both are misguided.
August 6, 2025 at 3:13 PM
Thanks!
July 28, 2025 at 1:16 AM