Dear friends, is first author's value the same as correspondence author? you will be valued as a first author because u r a correspondence author? I myself don't think so
First author is the researcher who has undertaken the research work. First author is responsible for doing the research practically. He is also responsible for preparing the manuscript and analyzing the data. Corresponding author is usually the senior author who provides the intellectual input and designs and approves the protocols to be followed in the study. He is responsible for the manuscript correction, proof reading, whole correspondence during the paper submission, handling the revisions and re-submission of revised manuscripts upto the acceptance of the manuscripts.
Both are important roles, but if you're talking brass tax and what reviewers / job seekers will think is more important then it is going to be the first author and the last author (ie the senior author)