After his studies he came to Greece and enrolled at the Law School of the University of Athens. He graduated and received a doctorate in law. He returned to Cyprus and pursued a career as a lawyer in Nicosia.

He was elected several times as a Member of Parliament for the Larnaca district of Famagusta (in the Legislative Council during the British rule). In 1925, Ioannis Ch. In 1925, John Economides collaborated in the establishment of the Agricultural Bank of Cyprus, and served as a member of its board of directors. He was a Director of the Bank of Cyprus.