According to Forbes 2014 ranking of the world's billionaires, Nigerian business magnate Aliko Dangote with a net worth of $25 billion is the world's richest black person.
 Others on the list are Nigeria's Mike Adenuga with $4.6 billion, American media mogul Oprah Winfrey with a net worth of $3.9 billion (2015) and South African gold magnate Patrice Motsepe, with $2.9 billion, Nigeria's Folorunsho Alakija with $2.5 billion and Mo Ibrahim, a British billionaire of Sudanese Nubian ancestry, who has been on the "Forbes" Billionaire list since 2008 and in 2012 had a net worth of $1.1 billion.
The Katz Group of Companies is one of Canada's largest privately owned enterprises, with operations in pharmacy, sports and entertainment, and real estate development.
 Katz Group Pharmacies Inc. employs over 8,600 people and owns and operates more than 460 Rexall and Rexall Pharma Plus locations across Central and Western Canada.
 Oilers Entertainment Group (OEG), a subsidiary of the Katz Group, owns the National Hockey League five-time Stanley Cup Champion Edmonton Oilers, as well as professional hockey franchises in the American Hockey League, Western Hockey League, and ECHL, and Aquila Productions, one of Canada’s leading entertainment and event companies.
 OEG operates Rogers Place in downtown Edmonton.
 Katz Group is also involved in land assembly, site, and building development in Canada and the United States, including the design and development of Ice District, an area encompasses more than 25 acres anchored by Rogers Place.
 Katz Group is based in Edmonton, Alberta.
 Its founder and chairman is Daryl Katz.
José Miguel Bonetti Guerra GCSG (born 25 February 1938, in Santo Domingo) is a businessman from the Dominican Republic.
 He was the chairman of Grupo Sociedad Industrial Dominicana (Grupo SID) for more than 45 years until 2015, when he was succeeded by his daughter Ligia Bonetti.
 According to "Forbes", Bonetti is among the ten largest fortunes in the Dominican Republic, with a net worth near one billion dollars as of 2014.
 He is also part of the President's Leadership Council for the Inter-American Dialogue.
John P. Calamos, Sr. (born 1940) is a Greek–American businessman, mutual fund manager and a self-made billionaire with an estimated net worth of 2.7 billion dollars according to Forbes.
 He founded "Calamos Asset Management" in 1977, and won BusinessWeek's best manager for 2003 and 2004 .
 He is also a veteran of the Vietnam War, in which he served as a fighter pilot in the Air Force.
 Calamos received a bachelor's degree in business and economics from Illinois Institute of Technology in 1963 and an M.B.A. in 1970, and currently serves on the IIT Board of Trustees.
Sandro Veronesi is an Italian entrepreneur, and founder of the Calzedonia Group.
 This corporation consists of Calzedonia, Intimissimi, Tezenis, Falconeri, Signorvino, Atelier Emé and Cash & Carry.
 According to the Forbes list of billionaires, Sandro Veronesi is one of the richest people in the world, with a net worth of over one billion dollars.
 His net worth in 2013 was estimated at $1.8 billion.
Tan Sri Dato Seri' Lim Kok Thay (林国泰 ; born 1951) is a wealthy Malaysian Chinese businessman.
 He has a net worth of US$4.71 Billion, make him Malaysia's sixth richest person.
 He is the second son of Tan Sri Lim Goh Tong, the founder of the Genting Group and Puan Lee Kim Fa.
 Now he is the CEO & Chairman of Genting Group, which one of the largest casinos, resorts & cruises company with market cap almost US$ 40 Billion.
 His family net worth is about US$4.5 Billion.
This is the list of Pakistani politicians by net worth as per the media reports and asset declaration.
 As of 2008, former president Asif Ali Zardari is the richest Pakistani politician with net worth of US$35 billion and former Prime Minister Nawaz Sharif from Sharif family is 2nd richest for having net worth of US$30 billion.
 MNA Noor Alam Khan is also among the richest with assets worth US$800 million in 2013.
Björgólfur Guðmundsson (born 2 January 1941 in Reykjavík, Iceland) was the chairman and former owner of West Ham United FC.
 Björgólfur was Iceland's second businessman worth more than a billion dollars — his son, Björgólfur Thor Björgólfsson being the first.
 He was at one time the majority owner and chairman of the now nationalised Icelandic bank Landsbanki, the second largest company in Iceland.
 He was ranked by "Forbes" magazine in March 2008 as the 1014th-richest person in the world, with a net worth of $1.1 billion.
 In December of the same year Forbes revalued his net worth to $0 and on 31 July 2009 he was declared bankrupt by the Icelandic courts with debts of almost £500 million (96 billion ISK).
Daryl Allan Katz (born May 31, 1961) is a Canadian businessman, investor, and philanthropist.
 With an estimated net worth of $US 4.14 billion (as of November 2015), Katz was ranked by "Forbes" as the 12th wealthiest Canadian and 534th in the world.
 The Edmonton-based Katz is founder and chairman of the Katz Group of Companies, one of Canada’s largest privately owned enterprises, with operations in the pharmacy, sports & entertainment, and real estate development sectors.
 Katz Group owns the Edmonton Oilers, and is leading the development of Rogers Place arena and the Ice District.
 Katz is a former lawyer, and resides in Edmonton.
Asset poverty is an economic and social condition that is more persistent and prevalent than income poverty.
 It can be defined as a household’s inability to access wealth resources that are sufficient to provide for basic needs for a period of three months.
 Basic needs refer to the minimum standards for consumption and acceptable needs.
 Wealth resources consist of home ownership, other real estate (second home, rented properties, etc.), net value of farm and business assets, stocks, checking and savings accounts, and other savings (money in savings bonds, life insurance policy cash values, etc.).
 Wealth is measured in three forms: net worth, net worth minus home equity, and liquid assets.
 Net worth consists of all the aspects mentioned above.
 Net worth minus home equity is the same except it does not include home ownership in asset calculations.
 Liquid assets are resources that are readily available such as cash, checking and savings accounts, stocks, and other sources of savings.
 There are two types of assets: tangible and intangible.
 Tangible assets most closely resemble liquid assets in that they include stocks, bonds, property, natural resources, and hard assets not in the form of real estate.
 Intangible assets are simply the access to credit, social capital, cultural capital, political capital, and human capital.

Question: What Canadian businessman has a net worth of over four billion dollars and chairs a company that operates Rexall pharmacies?
Answer: Daryl Katz