Ramsey joined Arsenal from Cardiff City in 2008 for £4.8million.
Emery made Ramsey one of his five captains before the start of the season, when he made it clear he wanted the 27-year-old to extend and commit the prime of his career to the club.
"I respect his decision to play or not play with the national team", Emery said of Ozil, who retired from worldwide football after the World Cup.
"We want the control for the the club, the players and for me".
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'The focus in on tomorrow, ' said Emery of the midfielder.
Speaking to reporters at his pre-match press conference, as reported by the London Evening Standard, Emery explained that in his eyes, every player is an important part of his squad. Asked about Saturday's game against Watford, he said: 'I am not going to change my idea'.
"Barca play very good football and Arsenal want to do the same", Ramsey told Marca.
"Maybe I will someday, who knows what will happen in the future?"
Ramsey has played 338 matches for the Gunners, scoring 59 goals and assisting an identical number. "They are professionals for 10, 12 or 15 years, but not more". Alexis Sanchez moved to Manchester United in January after refusing to sign a new deal, while Mesut Ozil finally penned a new contract that same month worth upwards of £300,000 a week.
Arsenal may try to cash in on the Wales worldwide in January but Ramsey is thought to be keen to stay until the end of the season, knowing that he would be likely to receive a better financial offer if he moved on without a transfer fee.