As programs with payments for ecosystem services (PES) have become more numerous, raising the need for and also the opportunity for rigorous evidence on their contributions, we examine shifts within Costa Rica's Pagos por Servicios Ambientales (PSA) program. The PSA was heralded from its initiation, despite demonstrations of low early impacts. We study shifts in impact over time across early periods and whether further adjustments could raise contributions.

When SPAs are small and budget-constrained, they cannot resolve all of the marines cape's open-access issues, but they can create win-win opportunities for ecological and economic goals at lower levels of enforcement. Spatial policies -taxes, gear restrictions, license restrictions, and livelihood programs- improve the MPA's ability to generate ecological gains, and licenses and livelihood policies can mitigate MPA-induced income burdens.

This document summarizes the governance analysis of bovine livestock NAMAs, or low-emission cattle farming initiatives, that are either underway or in formulation in LAC. It focuses on the legal and institutional frameworks and the key aspects related to stakeholder framework structure and design, associated with an effective and sustainable governance model.