Los problemas como la inflación, el déficit fiscal, los conflictos civiles o la deuda externa, que causaron la crisis del MCCA, persisten en
la actualidad.??

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.

answer; critical thinking;

answer; /// the above statement is (true);