Perhaps you should try some spelling variations:
economic effects » economic aspects (Expand search), chronic effects (Expand search)
coase economic » case economic (Expand search), classe economica (Expand search), crise economica (Expand search)
decrease rate » decreased rate (Expand search), decreases rate (Expand search), decrease at (Expand search)
rate decrease » rats decreases (Expand search), rate increase (Expand search), to decrease (Expand search)
decrease the » decreases the (Expand search), decrease in (Expand search), decrease of (Expand search)
the coase » the coarse (Expand search), the case (Expand search), the coast (Expand search)

You may be able to get more results by adjusting your search query.

• The words AND, OR and NOT may confuse the search; try adding quotes: "(( decrease _ decrease rate decrease ) OR ( decrease the coase economic effects ))~".
• Adding a wildcard symbol may retrieve word variants: (( decrease _ decrease rate decrease ) OR ( decrease the coase economic effects ))*.