  The present study aims to analyze relationship between Citations Normalized
Score (NCS) of scientific publications and Article Processing Charges (APCs)
amounts of Gold Open access publications. To do so, we use APCs information
provided by OpenAPC database and citations scores of publications in the Web of
Science database (WoS). Database covers the period from 2006 to 2019 with
83,752 articles published in 4751 journals belonging to 267 distinct
publishers. Results show that contrary to this belief, paying dearly does not
necessarily increase the impact of publications. First, large publishers with
high impact are not the most expensive. Second, publishers with the highest
APCs are not necessarily the best in terms of impact. Correlation between APCs
and impact is moderate. Otherwise, in the econometric analysis we have shown
that publication quality is strongly determined by journal quality in which it
is published. International collaboration also plays an important role in
citations score.
