The world has witnessed an unparalleled increase in trade liberalization over the last few decades, involving bilateral, regional and multilateral trade integration processes. These have been accompanied by increasing concerns over economic growth and distributional impacts emerging from trade agreements. An applied literature has emerged to address ex-ante effects at both the macroeconomic as well as the household levels. This thesis contributes to this literature by analysing the case of Bolivia, which is about to institute a trade liberalization agreement with the USA. It does so by making combined use of a computable general equilibrium model and a micro simulation approach (macro-micro in short) to provide insights into whether the Bolivian economy and its households would win or lose from trade liberalisation scenarios, pointing out how large gains and/or losses for particular types of households can be.