In: Economics
What does it mean for an estimator to be consistent?
Let, 
 be an estimator of 
 with some probability p.
Now, 
 will be a consistent estimator of 
 if 
 with some probability p which means 
 will tend to converge to 
 with some probability p.
Thus, an estimator to be consistent means it will converge to
the population parameter i.e 
 with some probability p.