 Sandi Mann concludes from her research that the " Have a Nice Day " culture will prevail , becoming used by more companies and countries . In the service industry , for example , she explains that products have become more uniform over the past few decades . Thus , the sole way for companies to distinguish themselves is to have better customer service . She notes that there are positive and negative effects . A positive effect is that it is beneficial for business and for people who enjoy fake displays . A negative effect is that emotions incompatible with the " Have a Nice Day " culture are repressed , leading to what Mann terms the " Have a Nice Day " syndrome . In an interview for the Wall Street Journal , an employee of the telemarketing company DialAmerica Marketing , was called a son of a bitch . Clenching his teeth , he responded " Thank you very much , you have a nice day . " The stress of suppressing their feelings and faking cheerfulness caused people like the telemarketer to feel insincere and phony . Individuals affected by the " Have a Nice Day " syndrome must carry out emotional labor , which could lead to diminished self @-@ esteem , depression , and cynicism . 
