Before revision:  Based on a physical model that considers the kinetics of ribosomes advancing on the mRNA and diffusing in its surrounding,  we explain how the transcript length might play a central role in establishing ribosome recruitment and the overall translation rate of an mRNA.
After revision:  Based on a physical model that considers the kinetics of ribosomes advancing on the mRNA and diffusing in its surrounding, as well as mRNA circularisation and ribosome drop-off, we explain how the transcript length might play a central role in establishing ribosome recruitment and the overall translation rate of an mRNA.