If you are a young business man you should look both modern and formal rather than your haircut should be suitable for both formal and casual looks. Men’s hairstyles are getting more and more versatile that any man can find a perfect style for himself.
Simple short haircut maybe a good choice for you especially if you like easy to style haircuts. For more stylish and cool style you can go with medium length haircuts, it looks great both side parted and slicked back. It would be a great choice for special occasions too. If you have medium to long hairstyles and thick hair, slicked back hairstyle is a good idea for you. You can style these haircuts messy or much more cooler for casual styles.