City of Adelaide

Shift-share analysis

In the City of Adelaide, the strongest regional competitive effect between 2001/02 and 2019/20 was experienced in Education and Training.

Shift Share Analysis provides a useful mechanism for better interpreting changes in economic variables between different time periods. It is a way of breaking the growth or decline in an industry into three components to help understand what is driving the change. These three change components are commonly known as:

National/State growth effect - the amount of growth or decline in an industry that could be attributed to the overall growth of a larger area that encompasses the region's economy, usually state or national.

Industry mix effect - the amount of growth or decline in an industry that could be attributed to the performance of the specific industry at the national/state level.

Regional competitive effect - the amount of growth or decline in a specific industry that could be attributed to a local advantage or disadvantage. This is generally the most interesting component as it clearly quantifies the level of advantage or disadvantage an industry has in the local area.

The regional competitive effect for an industry generally indicates how the local industry performed against benchmark trends. An industry with a positive regional competitive effect suggests local characteristics supported above trend growth in that period. For example, if Retail Trade in a region grew by 3% but at a state/national level it only grew by 2%, some regional specific factors (e.g. new shopping centre, population growth) must have contributed to this above trend growth. A negative effect suggests the opposite.

An industry with a positive regional competitive effect may still have experienced decline, but by less than the state/national trends.

Data source

National Economics (NIEIR) - Modelled series

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Shift-share analysis to South Australia
City of Adelaide - Employment (Total)2019/202001/022001/02 to 2019/20
IndustryNumbernumberchangeBenchmark growth effectIndustry mix effectRegional competitive effect
Agriculture, Forestry and Fishing129318-189+74.0-135.8-126.8
Mining1,986888+1,097+206.7+1,384.3-493.6
Manufacturing1,4321,680-248+390.9-630.3-8.3
Electricity, Gas, Water and Waste Services2,739979+1,760+227.9+624.5+907.6
Construction6,0822,654+3,429+617.5+1,336.6+1,474.6
Wholesale Trade2,0071,690+317+393.2-527.0+451.0
Retail Trade6,9787,615-637+1,771.8-1,140.9-1,267.9
Accommodation and Food Services9,9247,509+2,415+1,747.1+108.5+559.1
Transport, Postal and Warehousing2,9892,427+561+564.8+345.9-349.4
Information Media and Telecommunications6,5445,272+1,272+1,226.6-480.1+525.1
Financial and Insurance Services11,28110,429+852+2,426.4-2,278.2+703.7
Rental, Hiring and Real Estate Services2,2561,709+547+397.7-75.9+224.9
Professional, Scientific and Technical Services20,80212,521+8,281+2,913.0+3,930.7+1,437.4
Administrative and Support Services5,2864,795+492+1,115.5+204.5-828.4
Public Administration and Safety23,64313,997+9,646+3,256.4+4,273.1+2,116.9
Education and Training12,6426,671+5,971+1,552.1+957.8+3,461.0
Health Care and Social Assistance19,92215,346+4,576+3,570.2+2,702.1-1,695.8
Arts and Recreation Services3,3762,889+487+672.3+105.9-291.4
Other Services2,6972,748-50+639.3-384.8-305.0
Total Industries142,723102,144+40,579+23,763.4--+16,815.7

Source: National Institute of Economic and Industry Research (NIEIR) ©2021. Compiled and presented in economy.id by .id (informed decisions). Data are based on a 2018-19 price base for all years. NIEIR-ID data are inflation adjusted each year to allow direct comparison, and annual data releases adjust previous years’ figures to a new base year.Learn more

Please refer to specific data notes for more information
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Dominant groups

An industry with a positive regional competitive effect suggests local characteristics supported above trend growth in that period. A negative effect suggests local characteristics inhibited growth in that period.

An analysis of employment (Total) change between 2001/02 and 2019/20 in the City of Adelaide shows the three industries with the highest regional competitive effect in the City of Adelaide relative to South Australia were:

  • Education and Training (+3,461 )
  • Public Administration and Safety (+2,117 )
  • Construction (+1,475 )

The three industries with the lowest regional competitive effect were:

  • Administrative and Support Services (-828 )
  • Retail Trade (-1,268 )
  • Health Care and Social Assistance (-1,696 )

City of Adelaide

economic profile