estimated relationship between teacher job characteristics and private high school employment
Table:
outcome variable
regression results

coefficient
standard error

log of wages
-0.036
0.020

employed full time
-0.083
0.023

employed in permanent job
-0.003
0.023

covered by collective bargaining agreement
-0.551
0.015

union membership
-0.605
0.018

Respond the following question with the most concise answer possible from the table. Your output should look like {"answer": ["YOUR ANSWER"]}. For several items, comma-separate them within the list. The table caption is 'estimated relationship between teacher job characteristics and private high school employment'. Refer to the table to answer the question below: What was the percentage points were they far less likely to be covered by a collective bargaining agreement?

{"answer": ["-0.551"]}