This document summarizes an assessment of investment policies in MENA countries conducted by the MENA-OECD Investment Programme. It finds that while MENA countries have established investment laws and promotion agencies, their investment regimes remain relatively restrictive with ownership requirements, sectoral restrictions, and complex incentive systems. The assessment recommends that MENA countries streamline restrictions and incentives to increase transparency, lift some restrictions where alternative measures exist, simplify and evaluate incentives, and establish clear approval procedures and protections against expropriation to improve their investment policies and competitiveness.