Polin.

16:22 Sep 12, 2021 

Thank you very much to all of you! The source graph consulted by the authors, in fact, says "polyn."

14:40 Sep 11, 2021 

I have found this graph in two other places. The first is in "The Financial Sustainability of the Portuguese Health System" by Eduardo Costa, Rita Santos, Pedro Pita Barros, published in The Sustainability of Health Care Systems in Europe vol 295. Unfortunately, I can't access it fully as you have to pay for the subscription, however, here is the graph shown on Google images
https://www.google.com/search?q="the financial sustainabilit...

Its a bit hazy, but it seems to say 'poly.' rather than 'polin' on this graph.

The second is in the dissertation of one of the authors above (Eduardo Costa) on page 162 Figure 3.18 of this link
https://run.unl.pt/bitstream/10362/121392/1/Costa_2021.pdf

In this graph, poly/polin is omitted. The text in the page above it is along the same lines as Joana posted in the discussion.
I think Luis and Clauwolf are possibly correct as polynomial in English is polinomial in Portuguese (I think!), but as Luis says, there should be some reference to any polinomial/polynomial in the text before this point.

02:42 Sep 11, 2021 

some one said it is a name, there is a similar person , same area of health Pollin.
Quote Pollin et al. (2018) estimate that expanded access to health care could increase demand for health services by up to $300 billion annually. Given the current level of health spending and employment, this would translate into increased demand for 2.3 million full-time-equivalent workers in providing healthcare.17 Obviously all of the workers displaced from the health insurance and billing administration sectors could not necessarily transition into these jobs seamlessly, but well over 10% of workers in the health insurance sector, for example, are actually in health care occupations (e.g., they are doctors or nurses). https://www.epi.org/publication/medicare-for-all-would-help-...

23:48 Sep 10, 2021 

the model used to compute the data -and the curves- is a polynomial model. But you need to make sure by reading the rest of the working paper or study. There surely is a description under a typical section normally entitled 'model specification'. Otherwise, ask the client.

23:00 Sep 10, 2021 

Here's the description of the figure:

"The lines in the graph represent the possible combinations of economic and other public spending growth, compatible with four different nominal health spending growth rates. Any allocation below those lines, will be financially sustainable. Allocations above those lines imply that such health spending growth is not sustainable given the macroeconomic context."

22:42 Sep 10, 2021 

Could it be a name? See: https://www.sciencedirect.com/science/article/pii/S016885102...