It’s been just over a decade since the N.B.A. and the players’ union agreed on a rule that says players either need to be 19 years old or be one year removed from high school before being eligible for the draft. There are arguments for raising the minimum age to 20, as well as arguments for getting rid of the rule altogether.

Silver said he expects to have more talks in the coming months with the union about the topic.

“I think we all agree that we need to make a change,” Silver said. “As I’ve said before, our position, at least our formal position, going into bargaining was that we wanted to raise the minimum age from 19 to 20, and of course their formal position was they want to lower the age from 19 to 18.

“I think it’s one of those issues that we need to come together and study.”

There were six rookies this season who averaged 10 points per game or more; none were teenagers. One of the advantages that could come from raising the age minimum to 20 would be that players may be more ready for the pro game. Silver said he has talked to many veteran players, who have a sense that the 19-year-olds “are not coming in game-ready.”

Silver also defended the N.B.A.’s decision to return the All-Star Game to Charlotte, N.C., in 2019, after taking it away and moving it to New Orleans this season in response to North Carolina’s law restricting the rights and anti-discrimination protections for L.G.B.T. people.

A deal to repeal that law was struck in March, though critics have said it does not go far enough.

“We had said to the legislative leaders we will consider coming back in 2019, if you change the law,” Silver said. “The law was changed.”