Unsolicited employment opportunities from what looks like a familiar name--especially those asking for information like your phone number--are probably phishing from an impostor address, like in the following example. Checking the full headers revealed the true sender of this email (shown in the footer at end of this post).
Hello Josiah Carberry
Work in an Interdisciplinary research project collecting data online and earn $250 weekly. This is an adaptable job that requires little to no prior experience. Provide the information below to indicate interest and you'll receive a follow up email detailing specifics.
Professor of Economics
Department of Economics
* The full header details reveal the actual sender:
From: Professor Stelios Michalopoulos <SMichalo@brown.edu>
Reply-To: Professor Stelios Michalopoulos <SMichalo.firstname.lastname@example.org>
To: "email@example.com" <firstname.lastname@example.org>
Subject: Data Collection Research