1. Introduction -- 2. A trade restrictiveness index for distribution services -- 2.1 Types of restrictions on trade in distribution services -- 2.2 Restrictiveness index methodology -- 2.3 Results for 38 economies -- 3. Modelling the effect of restrictions on distributors' price-cost margins -- 3.1 Using price-cost margins to measure the effects of trade restrictions -- 3.2 The determinants of price-cost margins for distributors -- 3.3 Estimating the impact of trade restrictions on the price-cost margins of distributors -- 3.4 First stage results -- 3.5 Second stage results -- 4. Quantifying the cost impact -- 4.1 Deriving a cost impact measure for restrictions on trade in distribution services -- 4.2 Results for 18 economies