The phrase "a marginal value of" is correct and usable in written English.
It can be used in contexts where you are discussing the additional benefit or cost associated with a small change in a variable or decision.
Example: "The study revealed a marginal value of increased investment in renewable energy sources, suggesting that even small increments could lead to significant environmental benefits."
Alternatives: "an incremental value of" or "a slight value of".
The smoke has been reduced to 7.4%, the emission of CO and HC has been reduced to a marginal value of 2.3% and 1% respectively compared with that of B20 blend.
However, a retrospective analysis of the delineated catchment areas in this study gave a marginal value of 0.6%.
In the CRIC cohort of 3386 patients suffering from CKD 2 4, NGAL was an independent predictor of worsening of CKD (defined as a 50% eGFR decrease or dialysis initiation) but it did not add significantly to the discrimination model suggesting a marginal value of urinary NGAL as a predictor of CKD progression [ 134].
Navrud [ 22] followed a contingent valuation approach similar to that of Tolley et al. [ 26], but using an improved version of the survey and sample design; he found that there was a declining marginal value of a symptom or illness day per year: per person the mean WTP of $376 to avoid one additional day of symptoms, while about $1210 to avoid 14 additional days symptoms.
The minimum wage drives a wedge between the marginal value of an hour of labor and its marginal cost.
Marginal value of a unit car time / Marginal value of a unit walk time.
The increase in the average farm size (size), positively affects (0.2319) the HNV farmland value due to an expected higher marginal value of land use by large farming systems.
10 Caputo and Levy [ 25] showed the effects of an agent's marginal value of health.
It's hard to come down against something that puts money in the hands of those who need it: people who work in a Captcha farm are likely to be people for whom the marginal value of a dollar a day is the highest.
With v an average car speed, α the marginal value of a unit car time and m i the parking tariff.
With w an average walk speed and β the marginal value of a unit walk time.
