How does advertsing affect a business?

How does advertsing affect a business?
advantages of advertising
helps to increase sales and profit by attracting or persuading customers . helps manufacturers to introduce new products into the market. helps manufactures to offer quality goods to the customers, as the goods they produce mus have the same quality shown in the advertisement. makes shopping easier as consumer can select goods easily. it educates the consumer of the use and utility of the product. it is a language by which manufacturers speak to consumers.disadvantages of advertising
it is expensive in case of certain advertising media like television. advertising is a national waste due to the following. it destroys the utility of a product before its normal life. some of the advertisement are not seen or heard by people. amount of spending on such advertisement go to waste. the people employed in the advertising industry might make greater contribution if they work in other occupation it compels people to purchase products which they don't want, need or can't afford.