CalculateQuick's comments

On: What kind of math calculator/tool do you wish existed but can't find online?

[CalculateQuick]

I can do that.

Clarify some things for me:

“Offspring emissions” — is that just lifetime emissions of one child, or multiple generations (kids + grandkids)?

Should fertility rate be treated as a simple multiplier, or model population growth (e.g. TFR^n)?

Do you want attribution across generations (50%, 25%, etc.)?

Include discounting or just raw totals?

Outputs — just total cost, or also show emissions and breakdown?

Are values user-supplied, or should I include presets (e.g. emissions per person by region)?

Any other details?

[toomuchtodo → CalculateQuick]

Appreciate this.

> “Offspring emissions” — is that just lifetime emissions of one child, or multiple generations (kids + grandkids)?

One generation, as it is difficult to predict with certainty multigenerational fertility (due to social and cultural effects: https://www.sciencedirect.com/science/article/abs/pii/S03135...).

> Should fertility rate be treated as a simple multiplier, or model population growth (e.g. TFR^n)?

Simple multiplier, again modeling future fertility is challenging (although it appears it will remain on a declining trajectory per https://www.mckinsey.com/mgi/our-research/dependency-and-dep...).

> Do you want attribution across generations (50%, 25%, etc.)?

Unnecessary at this time.

> Include discounting or just raw totals?

I am open to your thoughts on this. Raw totals are helpful to me immediately from a valuation perspective, but discounting might be interesting from a visualization perspective. The challenge here is how fertility rate and annual estimated emissions might change over time, the latter based on country level decarbonization/per capita CO2 emissions rate of change over time, forward looking.

> Outputs — just total cost, or also show emissions and breakdown?

Both please.

> Are values user-supplied, or should I include presets (e.g. emissions per person by region)?

User supplied is fine, as that would be the least amount of effort I believe, but if you wanted presets, I can provide most recent total fertility rate and per capita CO2 emissions by country.

Thanks again for your help with this experiment. The goal is to create a valuation modeling tool for fertility through the carbon markets.