A 'periodical' or 'serial' = any publication published regularly (includes magazines, newspapers, newsletters).
A ‘scholarly’/academic’ journal: periodical containing research articles, that is peer-reviewed, and aimed at researchers.
Peer review: every paper/article submitted to the journal is reviewed by independent experts. Papers are accepted/rejected based on quality.
The key Economics databases are:
Multidisciplinary databases such as Web of Science, Science Direct, and Academic Search Complete (see below) also cover economics.
See the full list of databases available at UCC Library.