In an international social rights debate disproportionately focused on English-speaking countries, redundant emphasis has been placed on justiciability. While constitutionalization does challenge stable relations between powers, especially in the post-colonial and developing world, solid insights for a workable interpretative method can be derived from continental Europe, where the difficulties typically associated with justiciability have long been settled. The constitutions of Italy, Germany, and Portugal take socioeconomic democracy seriously, tempering socialist claims and refuting libertarian stances, and have managed to spur a legitimate judicial increment of substantive equality. Through a threefold comparison, this paper describes the peculiarities of these fundamental texts across the spectrum of possible constitutional design choices, and draws from comparative constitutional caselaw to highlight a cross-national convergence on a set of interpretative standards. These blend together a strong safeguard of legislative discretion with justiciable minimal guarantees, and a value-assertive orientation of balancing coextensive with the integrationist function of constitutionalized social and economic rights.