PALM BEACH, Fla. -- Happiness could be the ticket to your long-term success, according to one best-selling author.

Happiness can lead to greater advisor productivity and client satisfaction, Shawn Achor, author of "The Happiness Advantage," told a packed room of advisors during a keynote presentation at TD Ameritrade's Elite Advisor Summit

One main message to advisors: Don't underestimate the power of a positive corporate culture, according to Pete Dorsey, managing director of institutional sales at TD Ameritrade.

Achor, CEO of Good Think Inc., where he researches and teaches about positive psychology, said the largest advantage in the modern economy is a happy and engaged workforce. He said happiness raises nearly every business and educational outcome: raising sales by 37%, productivity by 31%, and accuracy on tasks by 19%, as well as health and quality of life improvements. Long-term happiness also translates to being 40% more likely to receive a promotion and 23% fewer fatigue symptoms. 

According to Achor, "you can raise your success all the time and happiness will remain the same. Or, you can raise your happiness and your success will rise dramatically." 

Easier said than done, you might say. 

Nevertheless, Achor offered these tips to promote long-term happiness and overall more optimistic thinking. Try them out for 21 days in a row for two to 15 minutes each day, he suggested. 

1. Three Gratitudes: Write down three things that you are grateful for.

2. The Doubler: Write down a very detailed description of something positive that has happened to you within the past 24 hours.

3. The Fun Fifteen: Spend 15 minutes a day doing a fun, mindful activity, such as gardening or going for a walk.  

4. Meditation 

5. Conscious Act of Kindness: Write a positive email praising or thanking somebody in your social support network.

View Shawn Achor's TED Talk here.

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