Nationally Appropriate Mitigation Actions (NAMAs) are seen as a pivotal means for enhanced mitigation in developing countries, but the design and implementation complexities of NAMAs are still unclear. This paper sheds light on how carbon markets can be utilised to support NAMAs in developing countries, trying to find out an optimal combination of NAMAs and carbon markets.
The authors consult a number of stakeholders and reveal that there is a high level of agreement that NAMAs are compatible with carbon markets. However, it is widely deemed that this compatibility depend on certain conditions being met. These conditions include:

the availability of reliable data sources and avoiding double counting
establishing a uniform monitoring, reporting and verification (MRV) system
avoiding the threat of the carbon market being flooded with cheap credits in the absence of ambitious targets
establishing a baseline of comparisons across time
developing an appropriate institutional balance in personnel and responsibilities

Concerning credited NAMAs (C-NAMAs), the report finds that they can scale up carbon markets in developing countries, but clear boundaries need to be defined for different mechanisms to avoid conflicts. In addition, greater clarity on private sector participation for supporting NAMAs is urgently needed. Otherwise, C-NAMAs may still be able to scale up carbon markets, but they will not be able to do so in a just and sustainable manner.
Furthermore, the author concludes that: 

establishing a fund to support stringent MRV NAMAs so as to meet the requirements of C-NAMAs can be suggested
defining and expanding upon the relationship between LCDS (a strategy seen as reference point for different national NAMAs) and NAMAs will be important to nationally streamline measures