Question: Which German multinational automotive manufacturing company has contributed to more than halving the unemployment rate of the city of Wolfsburg?

Context paragraphs:
Effective unemployment rate: The unemployment rate announced by United States Department of Labor does not include those too discouraged to look for work any longer or those part-time workers who are working fewer hours than they would like.  By adding these two groups to the unemployment rate, the rate becomes the effective unemployment rate.

Full employment: Full employment, in macroeconomics, is the level of employment rates where there is no cyclical or 。deficient-demand unemployment.  It is defined by the majority of mainstream economists as being an acceptable level of unemployment somewhere above 0%.  The discrepancy from 0% arises due to non-cyclical types of unemployment, such as frictional unemployment (there will always be people who have quit or have lost a seasonal job and are in the process of getting a new job) and structural unemployment (mismatch between worker skills and job requirements).  Unemployment above 0% is seen as necessary to control inflation in capitalist economies, to keep inflation from "accelerating", i.e., from rising from year to year.  This view is based on a theory centering on the concept of the Non-Accelerating Inflation Rate of Unemployment (NAIRU); in the current era, the majority of mainstream economists mean NAIRU when speaking of "full" employment.  The NAIRU has also been described by Milton Friedman, among others, as the "natural" rate of unemployment.  Having many names, it has also been called the structural unemployment rate.

List of Canadian provinces by unemployment rate: The list of Canadian provinces by unemployment rate are statistics that directly refer to the nation's seasonally adjusted unemployment rate.  Below is a comparison of the seasonally adjusted unemployment rates by province/territory, sortable by name or unemployment rate.  Data provided by Statistics Canada's "Labour Force Survey".  "Not seasonally adjusted" data reflects the actual current unemployment rate, while "seasonally adjusted" data removes the seasonal component from the information.

Wolfsburg AG: Wolfsburg AG is a German company headquartered in Wolfsburg.  It was founded in 1999 with the goal of enhancing the attractiveness of the city of Wolfsburg.  Wolfsburg AG implements the AutoVision concept, which Volkswagen gave the city on the occasion of its 60th birthday.  It is a stock corporation (Aktiengesellschaft) under German law, in which the city of Wolfsburg and the Volkswagen Group have equal shares.  Today, Wolfsburg AG is considered to be a prime example economic development in Germany.  Its activities have contributed significantly to more than halving the unemployment rate of the city of Wolfsburg.

Youth unemployment in the United Kingdom: Youth unemployment in the United Kingdom is the level of unemployment among young people, typically defined as those aged 18–25.  A related concept is graduate unemployment which is the level of unemployment among university graduates.  Statistics for June 2010 show that there are 926,000 young people under the age of 25 who are unemployed which equates to an unemployment rate of 19.6% among young people.  This is the highest youth unemployment rate in 17 years.  In November 2011 youth unemployment hit 1.02 million, but had fallen to 767,000 by August 2014.  The high levels of youth unemployment in the United Kingdom have led some politicians and media commentators to talk of a "lost generation".

Unemployment in Poland: Unemployment in Poland appeared in the 19th century, during the process of industrialization, and was particularly severe during the Great Depression.  During communist rule officially Poland had close to full employment although hidden unemployment existed.  After Poland's transition to a market economy the unemployment rate sharply increased, peaking at above 16% in 1993, then dropped afterwards, but remained well above pre-1993 levels.  Another period of high unemployment occurred in the early 2000s when the rate reached 20%.  As Poland entered European Union (EU) in 2004 and its job market, mass emigration due to unemployment took place lowering the figure.  Since then the rate had fallen until the onset of the 2008 Great Recession.  Recent years have seen an increase in the unemployment rate from below 8% to above 10% (Eurostat) or from below 10% to 13% (GUS).  The rate began dropping again in late 2013.  Polish government (GUS) reported 9.6% registered unemployment in November 2015, while European Union's Eurostat gave 7.2%.  According to Eurostat data, since 2008, unemployment in Poland has been constantly below the EU average.  Significant regional differences in the unemployment rate exist across Poland.

Unemployment: The unemployment rate is a measure of the prevalence of unemployment and it is calculated as a percentage by dividing the number of unemployed individuals by all individuals currently in the labor force.  During periods of recession, an economy usually experiences a relatively high unemployment rate.  According to International Labour Organization report, more than 200 million people globally or 6% of the world's workforce were without a job in 2012.

Monetary policy reaction function: The monetary policy reaction function (MPRF) is the upward-sloping relationship between the inflation rate and the unemployment rate.  When the inflation rate rises, a central bank wishing to fight inflation will raise interest rates to reduce output and thus increase the unemployment rate.

List of Mexican states by unemployment: This page lists the variation in Mexican unemployment statistics by state.  As of the second semester of 2015, the national unemployment rate is 4.3%.  The state with the lowest reported unemployment rate is Guerrero at 2%.  The state with the highest unemployment rate is Tabasco at 6%.

Volkswagen Group: Volkswagen AG (] ), known internationally as Volkswagen Group, is a German multinational automotive manufacturing company headquartered in Wolfsburg, Lower Saxony, Germany.  It designs, manufactures and distributes passenger and commercial vehicles, motorcycles, engines, and turbomachinery and offers related services including financing, leasing and fleet management.  In 2016, it was the world's largest automaker by sales, overtaking Toyota.  It has maintained the largest market share in Europe for over two decades.  It ranked seventh in the 2016 Fortune Global 500 list of the world's largest companies.

Supporting paragraphs: Wolfsburg AG Volkswagen Group
Answer: Volkswagen Group