Matched context for economical and inefficient

The page lists matched contexts for economical and inefficient.

Share - economical	Share - inefficient	Phrase
3.74%	23.67%	{economical or inefficient} [effectiveness] operation
3.41%	7.81%	{economical or inefficient} [effectiveness] system
2.60%	6.07%	{economical or inefficient} [effectiveness] use
1.28%	9.10%	{economical or inefficient} [effectiveness] engine
0.87%	4.92%	very {economical or inefficient}
0.64%	5.91%	relatively {economical or inefficient}