r and investment tends to drop in periods of economic crisis even though it has been proved those and member states that invest the most during those periods are the ones that gain the 
R&D investment tends to drop in periods of economic crisis, even though it has been proved that those companies and Member States that invest the most during those periods are the ones that gain the greatest comparative market advantage.
R&D investment tends to drop in periods of economic crisis, even though it has been proved those and Member States that invest the most during those periods are the ones that gain the greatest comparative market advantage.