This answer is true.
If there is so much lettuce in the world that it can be had very easily in any venue, then the monetary value of the lettuce is diminished because it is so easily had.
True because you need to cite source of that fact
The Institutional changes between the 1960s and 1980s shifted the public policy from emphasizing public interest to upholding and satisfying the regulations. Among the greatly affected was the educational system. The structures of the different learning institutions were changed to accommodate dynamic market models and work around the expected outcomes of learning.