The authors of each manuscript will submit a signed Copyright Form confirming that the submitted manuscript in not submitted, published, or accepted for publication anywhere else. The signed copyright form also transfers publication copyrights to the JJCE

The JJCE is an open-access journal that encourages the spread of knowledge. All published research results are open and immediately accessible unrestrictedly. There are no charges or fees for submitting manuscripts or publishing accepted papers

JJCE adopts Commons Attribution 4.0 International License, where users can read, print, download, redistribute, republish and translate any article.