2. Except where the rights of a Host State are expressly stated as an exception to the obligations of this Annex, a Host State's pursuit of its rights to regulate shall be understood as embodied within a balance of the rights and obligations of investors and investments and Host States, as set out in this Annex. 3. Non-discriminatory measures taken by a State Party to comply with its international obligations under other treaties shall not constitute a breach of this Annex. ARTICLE 13 · CAPITAL MOVEMENTS 1. Each State Party shall ensure that investors are allowed facilities in relation to repatriation of investments, compensation and returns in accordance with the rules and regulations stipulated by the Host State. 2. Notwithstanding the provisions of paragraph 1, State Parties may regulate repatriation of investments and returns subject to their domestic laws and regulations, when necessitated by economic constraints that include but are not limited to: (a) difficulties for balance of payment purposes; (b) external financial difficulties; or (c) difficulties for macroeconomic management including monetary policy or exchange rate policy. ARTICLE 14 COMPETITION POLICY State Parties undertake, through co-operation, to advance a competition policy in the Region. ARTICLE 15 INTRA-REGIONAL AND EXTRA-REGIONAL AGREEMENTS FOR THE AVOIDANCE OF DOUBLE TAXATION 1. State Parties undertake to conclude between themselves agreements for the ·avoidance of double taxation in line with their undertakings as set out in Annex 3 of the Protocol, with a view to encouraging the movement of capital within the Region, particularly to the least-developed countries. 13