1- "You decide to cook your meal rather than eat out." Does it increase ; decrease or no changement on the GDP?

2- "A book publisher in Canada prints too many copies of a new book and cannot sell all the production of this book this year. Then the publisher adds the surplus of these unsold books to its inventory of books." Does it increase ; decrease or no changement on the GDP of Canada?

3- " A vineyard in Ontario produces a bottle of Chardonnay and sells it to a customer in New York." Does it increase ; decrease or no changement on the GDP of Canada?

4- " The Pepsi Cola Company is building a new bottling plant in Canada." Does it increase ; decrease or no changement on the GDP of Canada?