Investment in Physical and Intellectual Capital in 2023

 Australian capex in machinery and equipment, software and R&D 

 

 

The 2023 Australian System of National Accounts provided by the ABS includes data for industry investment in software, research and development (R&D), and machinery and equipment (M&E) [1]. Industry investment in physical and intellectual assets plays a vital role in economic growth through building capacity, upgrading technology, and increasing the productivity of workers.

 

This post compares the capital expenditure of 18 Australian industries in 2023 starting with M&E, then software followed by R&D, with industries ranked by expenditure. The ABS estimates of each industry’s net capital stock [2] are also included, with industries again ranked by expenditure. The third figure for each category compares each Industry’s share of total capital stock to the industry’s share of GDP. 

 

 

Machinery and Equipment 

 

With expenditure of $120 billion in 2023, M&E is by far the most important component of investment by Australian industry. In Figure 1 Australian industries are sorted by M&E capital expenditure in 2023, from lowest to highest. The two industries of Mining and Transport spent over $15 billion, Manufacturing spent over $10 billion, and Construction and Agriculture each spent around $9 billion. Those five industries accounted for 51 percent of total M&E capex, which however is more distributed than Software and R&D capex. The next five industries include three that spent between $6 and $7 billion, and two that spent between $5 and $6 billion. 

 

Figure 1. Industries ranked by machinery and equipment capital expenditure

 

Source: ABS 5204

 

Economic growth can come from either increased amounts of capital per worker or from technological progress and increased productivity. Since the financial crisis in 2006 the share of GDP of M&E capex has been falling, from eight to around four percent, and is now half the level it was before the financial crisis despite the decline in interest rates to 2021. With less investment the capital stock grows more slowly, leading to slower growth in output and therefore lower productivity. With a low rate of growth firms may not invest, or invest less, in expanding capacity and innovation (innovation was discussed in the previous post). The result is less economic dynamism and increasing economic inefficiency, leading to lower growth in productivity and GDP.

 

Very broadly, the net capital stock of M&E in each industry is around eight times their annual capex. Although a few industries like Electricity and Health move a couple of places, the ranking in Figure 2 generally follows that of annual expenditure. Agriculture and Construction swap places, but the top five industries are the same and they account for 45 percent of the total net capital stock. Those five asset heavy industries are by far the most capital intensive in Australia, particularly when compared with the bottom six service industries that only have between $10 and $25 billion in M&E capital stock. 

 

 

Figure 2. Net capital stock of machinery and equipment by industry

 

Source: ABS 5204

 

 

When the share of total capital stock for each industry is compared to its share pf GDP no real pattern emerges. Agriculture, Transport, postal and warehousing, and Rental, hiring and real estate services all have M&E capital stock shares that are much larger than GDP shares. Manufacturing and Electricity, gas, water and waste also have larger M&E shares. For Construction, Mining, Retail and Wholesale trades, and Accommodation and food services M&E shares are slightly higher than their GDP shares. On the other side are Health care and social assistance, Professional, scientific and technical services, Finance and insurance, and Education and training with M&E capital stock shares well below their GDP shares. 

 

Figure 3. Industry shares of M&E capital stock and GDP compared

 

Source: ABS 5204. GDP in current dollars at basic prices [3]. 

 

 

Intellectual Property: Software

 

Figure 4 shows industries ranked by capital expenditure on software, which is markedly different from the M&E rankings where Mining and Transport were the largest. Professional, scientific and technical services, which includes computer systems and IT services, with $5.7 billion had the biggest expenditure. Built environment related professional services like architecture, engineering, quantity surveyors and project management are also in this industry. [4].  

Finance and insurance with $3.7 billion and Information, media and telecommunications with $3 billion are the second and third largest. Three other industries spent over $2 billion, and those six industries accounted for 64 percent of the total. The top five industries accounted for 55 percent. Construction had the twelfth largest capex, and was sixth from the bottom in software capex. Total Software capex was $31 billion in 2023. 

 

Figure 4. Industries ranked by software capital expenditure 2023

 

Source: ABS 5204

 

The ranking of industries by software capital stock follows that for capex, with the exception of Manufacturing, which falls a couple of places to 12. Broadly, the value of software capital stock is a bit more than twice the value of 2023 capex, indicating a rapid depreciation rate for software of around three years. The top five industries in Figure 5 accounted for 57 percent of software capital stock. Construction remains at twelfth. 

 

Figure 5. Software net capital stock by industry 2023

 

Source: ABS 5204

 

The comparison of Software capital stock and GDP shares is dramatically different to the M&E shares. Here Professional, scientific and technical services, Finance and insurance, Information media and telecommunications, Transport, postal and warehousing, and Electricity, gas, water and waste have much larger capital stock shares than GDP shares. Agriculture, Construction, Mining, Manufacturing, Education and training, Accommodation and food services, and Health care and social assistance, have smaller shares. For Retail and Wholesale trades, Rental, hiring and real estate services, and Public administration and safety the shares are similar. 

 

Figure 6. Industry shares of software capital stock and GDP compared

 

Source: ABS 5204. GDP in current dollars at basic prices [3]. 

 

 

Intellectual Property: Research and Development

 

In Figure 7 industries are ranked by capital expenditure on R&D in 2023, from lowest to highest. Construction with $200 million is third from bottom and has the lowest R&D spend of any of the major goods producing industries like Agriculture, Mining and Manufacturing, which with $4.8 billion had the second largest investment in R&D. Professional, scientific and technical services, which includes the IT and computer services industries, had by far the largest R&D spend with $7.7 billion in 2023. There are five industries with capex above $1 billion, and those five accounted for 77 percent of all R&D expenditure.

 

Figure 7. Industries ranked by research and development capital expenditure

 

Source: ABS 5204

 

Capital expenditure on software is much more important than R&D for most Australian industries, the three exceptions where R&D was greater than software were Agriculture, Mining and Manufacturing. Some industries with low R&D capex are among the largest in software capex, such as Transport, postal and warehousing and Electricity, gas, water and waste. It is not uncommon for software capex to be many multiples of R&D, such four times more in Construction and five times more in Electricity.

 

The industry rankings change with the current value of R&D net capital stock, particularly for Agriculture and Mining where the value is relatively low. The leading seven industries are still leaders, Health is eight, Electricity is nineth and Construction is now at ten, ahead of Retail and Real estate services. The top five industries account for 76 percent of all R&D capital stock. 

 

 

Figure 8. Net capital stock of research and development by industry

 

Source: ABS 5204

 

The comparison of R&D capital stock and GDP shares highlights how concentrated R&D is in Australian industry. Only three industries have significantly larger capital stock shares: Professional, scientific and technical services, Finance and insurance, and Manufacturing. Three more have slightly larger shares, Information media and telecommunications, Education and training, and Public administration and safety. For all other industries their R&D capital stock share is less than their GDP share. In industries like Agriculture, Construction, Transport, and Retail the R&D shares are much smaller than GDP shares. 

 

Figure 9. Industry shares of R&D capital stock and GDP compared

 

Source: ABS 5204. GDP in current dollars at basic prices. 

 

 

Conclusion

 

Industry investment in physical and intellectual assets plays a vital role in building capacity and upgrading technology. Between the 18 industries the ABS provides data on the level of investment varied widely in 2023, with the share of capex of the top five industries increasing from 51 percent in M&E to 55 percent in Software to 77 percent in R&D. However, different industries are in the top five. 

 

In M&E capex in the top five industries Mining and Transport, postal and warehousing have much larger capex and capital stock than the next three industries of Manufacturing, Construction, and Agriculture. Policies to increase M&E investment could target those industries, although because M&E capex is more distributed than Software and R&D capex across the leading dozen industries a more general approach has traditionally been taken.

 

 In Software the largest expenditure was by Professional, scientific and technical services, Finance and insurance, Information, media and telecommunications, and Public administration and safety. R&D capex is highly concentrated in a few industries. Professional, scientific and technical services, Manufacturing, and Finance and insurance had the largest expenditure. For Software and R&D, capex policies that target the top three or four industries would be most effective. 

 

Economic growth can come from increased capital per worker or from technological progress and increased productivity. With investment the capital stock grows, and a low level of investment means slower growth in output, lower productivity, less economic dynamism and increasing economic inefficiency. 

 

The net capital stock of M&E in each industry is around eight times their annual capex, and ranking generally follows that of annual expenditure. The ranking of industries by software capital stock also follows that for capex, with the exception of Manufacturing, and the value of software capital stock is a bit more than twice the value of 2023 capex. industries with low R&D capex are among the largest in software capex, such as Transport, postal and warehousing and Electricity, gas, water and waste. It is not uncommon for software capex to be many multiples of R&D, such four times more in Construction and five times more in Electricity. Unlike M&E and software, the R&D capex industry rankings change for net capital stock, particularly for the low capital stock industries of Agriculture and Mining. 

 

For M&E net capital stock the top five asset heavy industries account for 45 percent of the total, and are very capital intensive compared with many service industries. The top five industries in software capital stock accounted for 57 percent.  The top five industries account for 76 percent of all R&D capital stock. The comparison of R&D capital stock shares and GDP shares highlights how concentrated R&D is in Australia, with only three industries having significantly larger capital stock shares.

 

The industry Professional, scientific and technical services includes computer systems design and has the highest expenditure on both software and R&D, has the largest capital stock, and a much larger share of total capital stock than GDP for them. For Australia this is the leading industry for intellectual property software and R&D investment and capital stock. Because this is the industry that includes scientific research and IT systems and services this is not surprising, but the wide gap between this industry and all the others suggests it has a specific and special role in the economy, and industry policy should reflect that.

 

 

 

 

[1] The data used here is from Tables 63 and 64 of ABS 5204, which comes out twice a year in February and October. All figures in this post are in current dollars, but the publication includes constant dollar estimates for expenditure since 1960. 

 

[2] Gross capital stock values each asset in use at the current price, Net capital stock is the written down value of gross capital stock. The difference between the net and gross value is accumulated depreciation.

 

[3] The basic price is the amount retained by the producer in respect of the good or service that is produced as output, minus any tax payable (including deductible value added taxes) plus any subsidy receivable. 

 

[4] Professional, scientific and technical services include scientific research, architecture, engineering, computer systems design and related services, law, accountancy, advertising, market research, management and other consultancy, veterinary science and professional photography. 

 

 

The Australian Built Environment Sector 2023

 The economic role of construction and related industries

 

 

This post combines data from the annual Australian Bureau of Statistics publication Australian Industry for fifteen industries that have a direct relationship with construction and the built environment. These industries make up the Australian Built Environment Sector and in 2022-23 they employed 2.3 million people and produced $348 billion in output. The Built Environment Sector includes industries involved in construction of buildings and structures, management and maintenance of the built environment, suppliers of materials, manufacturers of machinery and components, and professional services providers. 

 

The analysis is based on Industry value added (IVA) and Industry employment (in June for each year). IVA is the estimate of an industry’s annual output and its contribution to gross domestic product (GDP), and is broadly the difference between total income and total expenses. IVA is given in current dollars in Australian Industry, therefore changes in IVA reflect changes in both prices paid for goods and services and the quantity of output.

 

Table 1. Built Environment Sector Contribution to the Australian Economy 2022-23

                                                                                     Employment               IVA $bn

Total Australian Built Environment Sector                  2,266,000                    348

Total Australian employment and GDP                      15,369,000                  2,564

BES Percent of total employment and GDP                14.7%                          13.6%

 Source: ABS 8155, ABS 5206, ABS 6202. 

 

The IVA of the fifteen industries contributed 13.6 percent to nominal Australian GDP in 2022-23, within their long-run range between 13 and 14 percent of GDP since 2006-07.  Over that period the BES share of total employment fluctuated between 14 and 16 percent of total employment, and was 14.7 percent in 2022-23.

 

 

Figure 1. Built Environment Sector Contribution to the Australian Economy 2007-2023

Source: ABS

 

 

 

 

The Built Environment Sector

 

Onsite construction work links suppliers of materials, machinery, equipment, products and components. Consultants provide design, engineering, cost planning and project management services. Once produced, buildings and structures need to be managed and maintained over their life cycle, work done by another group of related industries. The built environment also needs infrastructure and services like water, sewerage and waste disposal, provided by yet more industries. he collective significance of these industries is obscured by their diversity, ranging from architecture to waste disposal, and their geographic distribution. Of the fifteen industries included in the Australian BES, three are from Construction.

 

Table 2. Industries included in the Australian Built Environment Sector.

Supply industries	Demand industries	Maintenance industries
Non-metallic mining & quarrying	Residential property	Water, sewerage & drainage
Building construction	Non-residential property	Waste collection & disposal
Heavy and civil engineering	Real estate services	Building & industrial cleaning
Construction services		Building pest control services
Architectural services		Gardening services
Surveying & mapping services
Engineering design & consulting
Manufacturing industries

 

 

Comparing the shares of employment and IVA for each BES industry in Figures 2 and 3 shows Construction and Building services have smaller shares of IVA than employment and are more labour intensive, while Water and sewerage, Professional services and Property and real estate services have larger shares of IVA than employment and are relatively more capital intensive. 

 

 

Figure 2. Employment by industry 

Source: ABS.

 

Figure 3. Output by industry  

Source: ABS.

 

Since 2007 the combined share of BES employment for the three service industries of Property and real estate services, Professional services and Building services has increased from 34.2 percent to 36.1 percent, and their share of IVA increased from 33.7 to 38.5 percent. Manufacturing’s share of BES employment fell from 8.9 percent in 2007 to 6.5 percent in 2023, and the IVA share went from 10.7 to 6.3 percent. 

 

Missing from the industries included in the BES are transport and distribution. Materials, components and builders’ suppliers have to be supplied to site by the transport industry, and there are thousands of hardware stores and builders’ merchants that maintain stock, manage logistics and extend credit to customers. Like their contractor and subcontractor customers, much of the supply chain for building supplies and materials is highly fragmented. A further complication is manufacturers who not only sell to distributors like the hardware chains, but also sell direct or act as their own distributors. 

 

 

 

The Construction Industry is the Core of the Built Environment Sector

 

The Construction industry is divided into three sub-divisions: Building construction; Heavy and civil engineering construction; and Construction services (the trades). Of these, Construction services is by far the largest, employing 867,100 people in 2023 compared to 250,800 in Building and 142,400 in Engineering. In 2022-23, Construction accounted for 54.5 percent of BES employment, and that share has been between 54 and 55 percent since 2007. 

 

However, over time the Construction share of BES IVA has been gradually falling, from 50.3 percent in 2007 to 46.9 percent in 2023. The share of BES employment is higher than the share of IVA, mainly due to the labour-intensive nature and lower productivity of Construction Services, where the share of Construction employment is much larger than the share of Construction IVA. Within Construction, internal dynamics have seen the employment and IVA shares of Construction services decline since 2007.

 

In 2007 Construction services accounted for 74 percent of Construction employment and 67 percent of IVA, and in 2023 these shares were 69 percent of Construction employment and 60 percent of Construction IVA. In 2007 the share of Building was 21 percent of Construction IVA and 17 percent of employment, and in 2023 these were 23 percent of IVA and 20 percent of employment. For Engineering, in 2007 the share was 12 percent of Construction IVA and 9 percent of employment, in 2023 the shares were 17 percent of IVA and 11 percent of employment. 

 

The much larger share of IVA than employment for Engineering reflects the higher capital intensity of engineering work with its extensive use of heavy machinery like excavators and road making equipment. Although to a lesser extent than Engineering, this is also the case for Building because the use of cranes and other equipment makes it more capital intensive than Construction services, where hand tools are used. 

 

 

Figure 4. Building, Engineering and Construction services shares of employment 

Source: ABS.

 

 

BES Manufacturing

 

In Australian Industry data for Manufacturing is provided at the level of industry class, where broad categories like Wood products or Metal manufacturing are divided into specific industries based on their products. At that level it is possible to identify seventeen manufacturing industries that are primarily associated with the built environment. For industries like Concrete products, Clay bricks or Structural aluminium inclusion is straightforward. 

 

However, some industries will supply others outside the BES. Therefore, BES manufacturing data requires some give and take, so industries like Textile floor coverings (employs 1,622) and Reconstituted wood products (chipboard and particleboard manufacturing, employs 2,222) are excluded, while Mining and construction machinery (employs 9,556) is included. 

 

In 2023 there were 147,776 people employed in construction related manufacturing industries. As Table 3 shows, the three largest industries are Wooden structural fitting and components with 27,908 employees, Structural steel fabricating with 21,521 employed, and Architectural aluminium products with 16,703. There are several industries that employ around 10,00 people, including Other structural metal products, Glass and glass products and Ready-mixed concrete. At the other end of the scale Veneer and plywood, Clay bricks, Plaster products, and Metal roof and guttering each employed less than 2,000 people. 

 

 

Table 3. Built Environment manufacturing industries: persons employed 2023

 Prefabricated wooden building manufacturing                     1,412

Wooden structural fitting and components                           27,908

Veneer and plywood manufacturing                                      1,268

Paint and coatings manufacturing                                         7,128

Glass and glass product manufacturing                                 9,374

Clay brick manufacturing                                                        1,310

Cement and lime manufacturing                                            4,204

Plaster product manufacturing                                              1,435

Ready-mixed concrete manufacturing                                   9,213

Concrete product manufacturing                                           8,133

Structural steel fabricating                                                     21,521

Prefabricated metal building manufacturing                         8,636

Architectural aluminium product manufacturing                  16,703

Metal roof and guttering manufacturing                               2,162

Other structural metal product manufacturing                     10,315

Fixed space heating, cooling and ventilation equip.              5,488

Mining and construction machinery manufacturing              9,556

Total Built Environment Sector                                              147,766

 Source: ABS.

 

 

Figure 5. Australian Built Environment Sector manufacturing industries 

Source: ABS. Includes construction related industries.

 

Since 2007 the share of BES Manufacturing in total manufacturing IVA has risen from 15 percent to 16 percent in 2023. The large increases in 2022 and 2023were due to the rise in input costs, as prices for materials and labour increased by around 40 percent. 

 

 

Macroeconomic Role 

 

The Australian BES has a significant macroeconomic role, firstly as a major source of employment, and second through the strong backward linkages in the supply chain to local manufacturing industries and materials suppliers. The effectiveness of economic policy often relies on the timing and extent of the BES response to changes in policy settings, seen in the 6.2 percent rebound of construction employment after the pandemic in 2020. 

 

Two other examples are the BES response to increased government expenditures in the fiscal policy response to the global financial crisis in 2008, and the increase in residential building from monetary policy loosening as interest rates were lowered to cushion the transition after the end of the mining boom in 2014.

 

During the financial crisis following the collapse of the US sub-prime mortgage market in 2008, there was a rapid and large increase in Commonwealth government expenditure on building work over 2009 and 2010, focused on schools. This fiscal policy stimulus was intended to maintain employment and economic activity at a time when the economy was slowing after the rate of GDP growth in 2010 dropped to half the rate of 2009. The increase in public expenditure led to an increase in BES employment of 5.3 percent, from 1,834,000 in 2010 to 1,932,000 in 2011. 

 

After 2016, as Engineering construction work dropped from the record highs of the mining boom between 2013 and 2015, the Reserve bank of Australia lowered interest rates to boost other parts of the economy. The subsequent increase in residential building work during the apartment boom between 2016 and 2019 prevented a recession during the transition period after mining investment was no longer driving growth. That increase in residential building led to an increase in BES employment of 6.7 percent, from 1,918,000 in 2016 to 2,046,000 in 2019.

 

Figure 6. Australian Built Environment Sector employment 

Source: ABS.

 

 

Conclusion

 

When a dense network of many different firms from different industries are too geographically distributed to be a cluster, they are an economic sector.  There is no specific definition of an industrial sector, as it is a broad collection of firms with one or more common characteristics, like ‘agriculture’ or ‘the business sector’, though firms in these sectors come from many different industries. This is also the case with the diverse collection of firms and industries involved in constructing and maintaining the built environment.

 

There are fifteen industries with data available from the annual ABS publication Australian Industry that can be classified as contributing to the built environment. The industries included in the Australian Built Environment Sector form one of the largest and most important industrial sectors in the economy. The BES includes industries involved in construction of buildings and structures, maintenance of the built environment, and related suppliers of materials and professional services. The collective significance of these industries is obscured by their diversity, ranging from architecture to waste disposal, and their geographic distribution. Viewing them as an industrial sector provides perspective on their role and significance in the economy.

 

The analysis is based on Industry value added (IVA) and Industry employment. In 2022-23, the BES employed 2.3 million people and produced $348 billion in output, their IVA contributed 13.6 percent to nominal Australian GDP and their share of total employment was 14.7 percent. The construction industry is the core of the sector, making up 55 percent of BES employment, and 47 percent of BES IVA. Seventeen manufacturing industries are included in the Australian Built Environment Sector, and in 2023 there were 147,776 people employed in these construction related manufacturing industries.

 

The Australian Built Environment Sector has a significant macroeconomic role as a major source of employment, and through its links in the supply chain to local manufacturing and materials suppliers. The effectiveness of economic policy often relies on the BES response to changes in policy settings, like the 6.2 percent rebound of construction employment after the pandemic in 2020. Two other examples were BES employment growth in response to increased government expenditures in the fiscal policy response to the global financial crisis in 2009, and to the increase in residential building from monetary policy loosening as interest rates were lowered to cushion the transition after the end of the mining boom in 2014.

 

In the same way Manufacturing is not itself an industry, but a collection of industries that make up an industrial sector of the economy where firms have similarities in products and processes, industries that contribute to the construction and maintenance of the built environment can also be collected and their contribution to output and employment measured. The economic role of the BES is important and better data on its structure and role can contribute to policy decisions that significantly affect both its own performance and macroeconomic outcomes.