Why do markets produce too few public goods for consumption? ?

Because there is not a profit incentive for the markets

Before the market breakdown, the supply and market inside the market do not provide sufficient volumes of the goods where the value indicates the peripheral benefit of consumption.

The structure of business practices provides to market collapse. In the physical world, markets can't be comprehensive due to ineffective yielders, externalities, environmental affairs, and the shortage of public goods.

Government acknowledgments to business collapse incorporate enactment, direct provision of credit goods and government goods, assessment, grants, tradable permits, an augmentation of business rights, advocacy, and global cooperation among authorities.

d.) continue to rise rapidly

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.