The phrase "a better proxy for" is correct and usable in written English.
It can be used when discussing a substitute or representative measure that is more effective or accurate than another in a specific context.
Example: "In this study, we found that the new metric serves as a better proxy for overall performance than the traditional measures."
Alternatives: "a more accurate representation of" or "a superior substitute for".
That's a different measure from the more commonly reported gross domestic product (GDP), but a better proxy for living standards.
And the geographic size of a state would have been a better proxy for its economic potential in the early days of the Republic, when the United States was primarily an agrarian nation.
"Overall material well-being" should be our lodestar, the Cato report reads, and an individual's lifetime level of consumption is a better proxy for material well-being than how much money he makes in a given year.
David Owen, an economist at Dresdner Kleinwort Wasserstein, argues that investors should look at multi-factor productivity instead of labour productivity, because it is a better proxy for an economy's return on capital.
Now take the time machine forward four years to 2008, the election which made it clear that the Reagan coalition was well and try finished: John McCain won 46 percent of the vote overall, just 49 percent of the $100,000-plus demographic … and just 46 percent of the $200,000-plus demographic, which thanks to inflation is probably a better proxy for making comparisons to the rich of 1988.
Thus, the Mg II index provides a better proxy for solar EUV/FUV radiation than the F10.7 index.
Fetal cerebroplacental ratio is emerging as a better proxy than birthweight for placental insufficiency and as a marker of fetal compromise at term.
This means that the S-wave velocity in the top several meters is a better proxy than AVS30 for site amplification evaluation at the damaged sites.
Also, perception of income compared to others was used as a proxy for SES, whereas school fees might have been a better proxy.
The red step is suspected to be the better proxy for how efficiently a plant is photosynthesizing under different stresses than the infrared step.
Better proxies for estimating shutter lag are autofocus lag and shutter-release lag if you can find that data.
