These particular reserves present major environmental, social, and economic obstacles to recovery.

The incident laid bare to them the political, economic and social obstacles they are up against.

The biggest economic obstacle to price reform is "ruble overhang."

Many of these innocent blacks are striving to improve their status despite economic and social obstacles.

But those ambitions are stumbling over political and economic obstacles.

These organizations were primarily concerned with the legal and economic obstacles facing women.

Today, however, local people evangelize, while missionaries often address economic obstacles to human dignity.

Yet the political, regulatory and economic obstacles are formidable.

Other legal impediments and economic obstacles to such exploration remain, however.

There are great economic, educational and social obstacles to using the networks.