This page is really cool because this site includes a lot of information about the business culture guides and etiquette of many countries.
For example, let me show the comparison in Business Dress among countries.
"In U.S. business culture, dress tends to vary. In some parts of the country--the east in particular--most people wear business suits. In other areas, such as the west coast, a more relaxed approach to dressing is the norm in many workplaces. Executives in most regions of the country, however, usually dress quite formally."
"In Japanese business culture, men traditionally wore conservative suits, typically in blue or gray, with a white shirt and dark tie. Suits are still conservative in medium-sized and larger Japanese companies and government offices, but pastel shirts are now common."
"In Chinese business culture, conservative suits and ties in subdued colours are the norm. Bright colours of any kind are considered inappropriate."
"Normal business dress for men is a suit and tie. However, since India has a warm climate, often just a full-sleeved shirt with a tie is also acceptable. It is also important to select neutral colors, which are subdued and not very bright. In most companies, particularly in the IT sector, however, the dress code is much more casual. It is not unusual to find people wearing T-shirts and jeans with sneakers. However, as a visitor, conservative, though not formal, dress is advisable."
"Refrain from wearing traditional native clothing. Egyptians may find it offensive to see foreigners dressed in their traditional garments."
"The only absolute requirement of dress code in the Kingdom is modesty. For men, this means covering everything from navel to knee. Short sleeves are therefore acceptable but not short trousers."