Dubai is the most populous town and emirate in the United Arab Emirates (UAE), and the second largest emirate by territorial size after the capital, Abu Dhabi. As for the etymology of the word Dubai, one theory states that the name came from a word meaning "money", as people from Dubai were commonly believed to be rich due to the thriving trading center of the location. An Arabic proverb says "Dab
a Dubai", meaning "They came with a lot of money." The emirate of Dubai is a constitutional monarchy and it has been ruled by the Al Maktoum family since 1833. Tourism is an important part of the Dubai government's strategy to maintain the flow of foreign cash into the emirate. Dubai's lure for tourists is based mainly on shopping, but also on its possession of other ancient and modern attractions. As of 2013, Dubai was the 7th most visited city of the world based on air traffic and the fastest growing, increasing by a 10.7% rate. Dubai is expected to accommodate over 15 million tourists by 2015. Even tough Dubai is embracing a western lifestyle, tourists and expats are advised to follow a decent behavior in respect to the local culture and religion. Kissing in public is strictly illegal and can result in deportation. The Islamic dress code is not compulsory, but prohibitions on wearing "indecent clothing" or revealing too much skin are aspects of the UAE to which Dubai's visitors are expected to conform, and are encoded in Dubai's criminal law. At Dubai's malls, shoulders and knees should be covered and wearing sleeveless tops and shorts are discouraged. Dubai is to host World Expo 2020. The event will bring huge economic benefits by generating activities worth billions of dirhams and is expected to create over 270,000 jobs.
