The phrase "a pool of countries" is correct and usable in written English.
It can be used to refer to a group or collection of countries, often in the context of discussing international relations, trade, or cooperation.
Example: "The conference brought together a pool of countries to discuss climate change initiatives and collaborative efforts."
Alternatives: "a group of countries" or "a collection of nations".
Imagine, Horiuchi explained to me, that we could take a pool of countries similar to Israel in various respects exports as a percentage of G.D.P., urban population, mortality rates, consumption, government expenditure as a percentage of G.D.P., and so on and then use that pool call it a "donor pool"— to create a "synthetic Israel" that we could track alongside the real one.
Imagine, Horiuchi explained to me, that we could take a pool of countries similar to Israel in various respects — exports as a percentage of G.D.P., urban population, mortality rates, consumption, government expenditure as a percentage of G.D.P., and so on — and then use that pool — call it a "donor pool" — to create a "synthetic Israel" that we could track alongside the real one.
Hanushek and Kimko (2000) constructed a measure of the average schooling quality for a pool of countries based on student performance on international tests of academic achievement in mathematics and science conducted between 1965 and 1991 by two different international educational testing organizations.
Second, the fund is jointly governed by developed and developing countries, and, if successful, can attract significant contributions from a bigger pool of countries than just traditional donors.
Foremost, we provide similar evidence for a pool of 13 European countries for which a novel proxy of dual EPL is constructed.
To simplify the interpretation, PIAAC scores as well as all our measures for non-cognitive skills are standardized to have a zero mean and a standard deviation equal to one with respect to the pool of countries that we use in our estimations.
The three were selected from a pool of 7,500 entries from 91 countries.
He pointed out that the pool of countries taking the math and science exams included many developing countries, and that several industrialized nations, including France, Germany and Denmark, did not participate.
We could also calculate the average of these variables and then standardize it with respect to the mean and standard deviation of the pool of countries.
Then, we standardize this dummy with respect to the mean and standard deviation of the pool of countries (as for the rest of the variables).21 Results are available in the "Online Appendix".
Spain ranks fifth in such ranking after countries with extensive wage indexation (Belgium, Sweden, Finland and France), while countries such as Germany and Italy have low levels of real wage rigidity.23 Therefore, the fact that estimated levels of real wage cyclicality in Europe are higher than initially expected may be driven by the selected pool of countries for which estimations are available.
