"by concession" is correct and can be used in written English.
It can be used to describe a situation in which something is done or given up as a result of mutual agreement between two parties. For example: "The company agreed to the terms of the merger by concession."
By concession the 'exchange contracts,' and the 'sales tickets' are not taxable in Florida.
And it was Ryan who won the day, addressing the concerns and objections of wavering Republicans one by one, concession by concession.
From 1957 to 1974 he also owned and operated Olympic Airways, the Greek national airlines, by concession from the Greek government.
And all the candidates have supported the idea of returning the $60,000 generated annually by concession stands in the parks to the Parks Department.
"But now I was able to tell you the same thing on Sunday, and in fifteen-minute increments, and I could give you the results by concession stand".
From the 1860s it was known that there were "ancient gold workings" beyond the Limpopo, and by the mid 1880s Lobengula, the Ndebele king, was surrounded by concession hunters.
The software allows user to cut and splice the information however they like: by forest type, by time period, by logging concession, by protected areas, and so forth.
Front of train occupied by concession-stand workers, some chatting in Spanish, but most quiet and looking exhausted after another shift shovelling fries and chicken fingers.
About half of Selfridges' floor area is now occupied by concessions.
Our model has been to work with communities who may be affected by concessions by offering education and raising awareness so they are better equipped once negotiations begin.
Detroit's carmakers are being strangled by concessions they made to the United Auto Workers UAWW) in 1999 when times were good.
