The personal utility cost of giving 10% is approximately constant, but the benefit/cost ratio definitely isn’t, since benefit (the numerator) increases linearly with income. I’ve edited this sentence to make it clearer.
I think you mean benefit increases linearly with income?
Alternatively, perhaps you meant that benefit increases exponentially with cost (since cost is log income)?
Yup, you’re right, thanks
The personal utility cost of giving 10% is approximately constant, but the benefit/cost ratio definitely isn’t, since benefit (the numerator) increases linearly with income. I’ve edited this sentence to make it clearer.
I think you mean benefit increases linearly with income?
Alternatively, perhaps you meant that benefit increases exponentially with cost (since cost is log income)?
Yup, you’re right, thanks