Subject	positive externality
Predicate	has_property
Object	market failure
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.1825
Neighborhood Sigma	0.2807
Local Sigma	0.1972
Example Sentences	Sentence Occurrences Source positive externality is a market failure 7 Google Autocomplete a positive externality is market failure 1 Google Autocomplete