Skip to content

Economy of Namibia vs South Africa compared: GDP & Debt

Updated on by Georank

Namibia has a GDP of $15.1B compared to $427B for South Africa, ranking 146/197 and 40/197 by economy size, respectively.

Namibia has $10.6B in government debt (70.2% of GDP), compared to $336B (78.6% of GDP) in South Africa.

Namibia vs South Africa GDP by year

Namibia
South Africa
1x
Year GDP, current $
Namibia South Africa
2025 $15,080,340,654 $427,184,325,997
2024 $13,641,190,683 $401,144,998,374
2023 $12,522,012,874 $381,440,724,491
2022 $12,569,449,123 $407,596,043,068
2021 $12,402,486,184 $419,986,284,375
2020 $10,583,748,542 $337,974,655,408
2019 $12,541,928,303 $389,330,032,224
2018 $13,682,019,076 $405,260,723,893
2017 $12,895,153,371 $381,448,814,653
2016 $10,722,018,732 $323,585,509,674
2015 $11,335,161,084 $346,709,790,459
2014 $12,435,430,970 $381,198,869,776
2013 $12,043,307,277 $400,886,013,596
2012 $13,042,053,592 $434,400,545,086
2011 $12,523,359,441 $458,199,494,831
2010 $11,431,412,421 $417,363,822,802
2009 $8,938,847,189 $329,754,060,647
2008 $8,607,431,497 $316,131,258,616
2007 $8,839,536,476 $333,077,117,254
2006 $8,001,779,551 $303,858,675,364
2005 $7,248,374,838 $288,867,217,197
2004 $6,609,205,995 $255,806,908,595
2003 $4,926,439,384 $197,018,965,309
2002 $3,349,169,826 $129,087,556,612
2001 $3,557,341,215 $135,429,905,923
2000 $3,922,232,165 $151,752,757,215
1999 $3,868,551,730 $151,516,957,079
1998 $3,873,109,866 $152,982,984,557
1997 $4,154,989,950 $168,978,057,328
1996 $3,989,163,197 $163,234,925,381
1995 $3,978,514,206 $171,735,933,897
1994 $3,666,503,530 $153,512,712,382
1993 $3,251,188,833 $147,194,747,566
1992 $3,429,521,699 $146,956,150,987
1991 $2,996,869,281 $135,203,698,238
1990 $2,789,921,854 $126,048,140,142
1989 $2,535,135,798 $108,055,624,082
1988 $2,495,094,746 $103,976,831,871
1987 $2,300,068,217 $96,535,763,418
1986 $1,809,048,527 $73,354,771,399
1985 $1,608,237,350 $64,459,376,087
1984 $1,951,260,038 $84,870,163,366
1983 $2,297,400,688 $96,204,110,942
1982 $2,118,710,248 $85,904,057,409
1981 $2,249,908,578 $93,141,472,164
1980 $2,421,990,338 $89,411,864,402
1979 - $63,038,658,089
1978 - $51,607,412,902
1977 - $45,328,411,332
1976 - $41,150,460,288
1975 - $42,906,905,672
1974 - $41,389,186,095
1973 - $33,262,772,008
1972 - $24,515,919,217
1971 - $23,411,076,638
1970 - $21,218,391,513
1969 - $19,256,992,297
1968 - $17,124,793,150
1967 - $15,821,393,671
1966 - $14,211,394,315
1965 - $13,068,994,772
1964 - $11,955,995,218
1963 - $10,854,195,658
1962 - $9,813,996,074
1961 - $9,225,996,310
1960 - $8,748,596,501

Data sources: World Bank | Economy & Growth (1960–2025, retrieved 2026-07-08).

GeoRank.org/economy/namibia/south-africa | CC BY

GDP per capita in Namibia vs South Africa by year

Namibia
GDP per capita

GDP per capita, PPP
South Africa
GDP per capita

GDP per capita, PPP
1x
Year Current $
Namibia South Africa
GDP per capita GDP per capita, PPP GDP per capita GDP per capita, PPP
2025 $4,876 - $6,598 -
2024 $4,502 $11,687 $6,267 $15,456
2023 $4,226 $11,251 $6,034 $15,200
2022 $4,350 $10,663 $6,534 $14,749
2021 $4,413 $9,709 $6,829 $13,682
2020 $3,879 $9,354 $5,581 $12,671
2019 $4,732 $9,609 $6,534 $13,361
2018 $5,309 $9,854 $6,914 $13,347
2017 $5,144 $9,888 $6,618 $13,738
2016 $4,396 $10,200 $5,651 $13,519
2015 $4,774 $10,466 $6,112 $13,398
2014 $5,378 $10,365 $6,857 $13,359
2013 $5,347 $9,699 $7,332 $13,369
2012 $5,943 $9,364 $8,077 $12,987
2011 $5,835 $9,002 $8,646 $13,143
2010 $5,418 $8,538 $7,973 $12,637
2009 $4,303 $8,079 $6,375 $12,261
2008 $4,205 $8,125 $6,185 $12,525
2007 $4,379 $7,875 $6,592 $12,047
2006 $4,017 $7,374 $6,077 $11,250
2005 $3,686 $6,767 $5,837 $10,441
2004 $3,403 $6,480 $5,221 $9,714
2003 $2,569 $5,693 $4,062 $9,139
2002 $1,772 $5,433 $2,688 $8,792
2001 $1,916 $5,196 $2,847 $8,428
2000 $2,157 $5,129 $3,218 $8,095
1999 $2,178 $4,961 $3,242 $7,667
1998 $2,235 $4,852 $3,310 $7,463
1997 $2,460 $4,764 $3,700 $7,433
1996 $2,423 $4,612 $3,618 $7,208
1995 $2,483 $4,509 $3,856 $6,875
1994 $2,356 $4,376 $3,489 $6,611
1993 $2,155 $4,345 $3,400 $6,375
1992 $2,347 $4,452 $3,462 $6,275
1991 $2,117 $4,192 $3,243 $6,383
1990 $2,037 $3,875 $3,093 $6,382
1989 $1,967 - $2,727 -
1988 $2,063 - $2,702 -
1987 $1,969 - $2,586 -
1986 $1,599 - $2,027 -
1985 $1,466 - $1,839 -
1984 $1,830 - $2,504 -
1983 $2,214 - $2,938 -
1982 $2,097 - $2,717 -
1981 $2,267 - $3,050 -
1980 $2,468 - $3,029 -
1979 - - $2,202 -
1978 - - $1,852 -
1977 - - $1,671 -
1976 - - $1,559 -
1975 - - $1,670 -
1974 - - $1,656 -
1973 - - $1,369 -
1972 - - $1,038 -
1971 - - $1,020 -
1970 - - $952 -
1969 - - $891 -
1968 - - $817 -
1967 - - $779 -
1966 - - $722 -
1965 - - $685 -
1964 - - $646 -
1963 - - $605 -
1962 - - $563 -
1961 - - $546 -
1960 - - $532 -

Data sources: World Bank | Economy & Growth (1960–2025, retrieved 2026-07-08).

GeoRank.org/economy/namibia/south-africa | CC BY

Namibia's GDP per capita is $4,876, ranking 125/197, compared to $6,598 in South Africa, ranking 109/197. Adjusted for purchasing power (GDP per capita PPP), Namibia ranks 128th at $11,687, while South Africa ranks 112th at $15,456.

Economic indicators

Namibia South Africa
Gross domestic product
$15.1B
2025
$427B
2025
GDP rank
146/197
2025
40/197
2025
GDP growth
1.73%
2024-2025
1.11%
2024-2025
GDP per capita
$4,876
2025
$6,598
2025
GDP per capita rank
125/197
2025
109/197
2025
GDP per capita, PPP
$11,687
2024
$15,456
2024
GDP per capita PPP rank
128/197
2024
112/197
2024
Government debt
$10.6B
2025
$336B
2025
Debt-to-GDP ratio
70.2%
2025
78.6%
2025
Government debt per person
$3,425
2025
$5,189
2025
Government debt per person rank
97/185
2025
84/185
2025
Average annual personal income after taxes
$3,433
2026
$4,738
2026
Market capitalization of domestic companies
$2.48B
2024
$1.4T
2025
Number of millionaires n/a
97,000
2026
Number of billionaires n/a
7
2026
Income share by richest 10%
47.2%
2015
42.1%
2022
Income share by poorest 10%
1%
2015
1.4%
2022
Government expenditure, % of GDP
39.4%
2025
34.2%
2025
Consumer prices inflation
3.5%
2024-2025
3.21%
2024-2025
Central bank interest rate
6.5%
2025
7%
2026
Unemployment rate
19.9%
2018
32.3%
2024
Population
3185686
65829368

Spending and national debt comparison by year

Namibia
Spending

Debt
South Africa
Spending

Debt
1x
Year % of GDP
Namibia South Africa
Government spending Government debt Government spending Government debt
2025 39.4% 70.2% 34.2% 78.6%
2024 39.6% 69.8% 33% 76%
2023 37% 67.9% 32.5% 73.2%
2022 36.6% 70.1% 31.9% 70.7%
2021 39.3% 69.6% 32.7% 68.8%
2020 41.5% 64.3% 34.6% 68.9%
2019 37.4% 57.6% 31.4% 56.1%
2018 36.3% 48.7% 30.2% 51.5%
2017 38.1% 43.8% 29.9% 48.6%
2016 41.8% 45.8% 29.9% 47.1%
2015 43.7% 42.1% 30.2% 45.2%
2014 41.8% 27.6% 29.3% 43.3%
2013 38.3% 26.1% 28.9% 40.4%
2012 35% 24.6% 28.6% 37.4%
2011 38.5% 27.4% 28.1% 34.7%
2010 33.5% 16.3% 28.3% 31.2%
2009 32% 15.9% 28.5% 27%
2008 28.4% 19.1% 26% 24%
2007 26.1% 19.4% 24.4% 24.3%
2006 27.4% 26.1% 24.7% 28%
2005 27.7% 26.9% 25.1% 29.6%
2004 28.4% 29.2% 22.7% 30.7%
2003 31.1% 27.1% 22.6% 31.5%
2002 29.8% 22.2% 22.2% 31.8%
2001 30.7% 24.4% 22.6% 38%
2000 30.1% 20.9% 22.6% 37.9%
1999 31.8% 21.8% 26.7% 45.9%
1998 31.3% 19.6% 27.1% 45.8%
1997 30.9% 17.7% 27.9% 45.8%
1996 30.4% 18.7% 28.5% 44.3%
1995 29.6% 18% 27.2% 47%
1994 28.7% 16.4% 31.3% 46.4%
1993 32.4% 17.2% 29.1% 39.8%
1992 32.8% 14.1% 29.8% 34.8%
1991 33% 11.8% 27.8% 34.7%
1990 30.2% 12.9% 28.7% 31.8%
1989 - - 29.6% 33.3%
1988 - - 23.9% 30.6%
1987 - - 28% 33.5%
1986 - - 27.8% 32.5%
1985 - - 26.8% 26.3%
1984 - - 25.2% 23.2%
1983 - - 25.1% 28.7%
1982 - - 23.8% 31.3%
1981 - - 23.3% 27.4%
1980 - - 21.8% 33.3%
1979 - - 26.5% 41.9%
1978 - - 26.8% 44.7%
1977 - - 27.3% 45.3%
1976 - - 23% 35%
1975 - - 21.2% 32.8%
1974 - - 19.1% 33.7%
1973 - - 21% 38.2%
1972 - - 22.9% 41.1%
1971 - - 19.9% 41.1%
1970 - - 20% 43.3%
1969 - - 18.8% 44.4%
1968 - - 19.4% 42.7%
1967 - - 18.8% 41.1%
1966 - - 18.3% 41.4%
1965 - - 18.2% 42.7%
1964 - - 11.3% 30%
1963 - - 15.9% 43.4%
1962 - - 15.9% 45.7%
1961 - - 15.7% 52.8%
1960 - - 16.7% 52.9%

Data sources: International Monetary Fund (IMF) | Fiscal Monitor (1990–2025, retrieved 2026-07-08); International Monetary Fund (IMF) | Public Finances in Modern History (1960–1999, retrieved 2026-07-08).

GeoRank.org/economy/namibia/south-africa | CC BY

In 2025, Namibia's government spending was $5.94B, accounting for 39.4% of its GDP, while South Africa spent $146B, or 34.2% of GDP.

Debt-to-GDP ratio is 70.2% in Namibia and 78.6% in South Africa, ranking 57/185 and 46/185, respectively.

Government deficit by year

Deficit/surplus
Namibia

South Africa
1x
Year Deficit/surplus, % of GDP
Namibia South Africa
2025 -6.46% -5.78%
2024 -3.84% -5.67%
2023 -3.14% -5.6%
2022 -6.33% -4.25%
2021 -8.68% -5.54%
2020 -8.07% -9.62%
2019 -5.49% -5.07%
2018 -5.09% -3.73%
2017 -4.99% -4.02%
2016 -9.3% -3.72%
2015 -8.3% -4.37%
2014 -6.44% -3.93%
2013 -4.69% -3.9%
2012 -3.1% -4.04%
2011 -7.09% -3.7%
2010 -4.98% -4.51%
2009 -0.4% -4.67%
2008 3.48% -0.49%
2007 6.01% 1.22%
2006 3.41% 0.81%
2005 -0.31% -0.1%
2004 -2.67% -1.04%
2003 -4.47% -1.59%
2002 -1.38% -0.96%
2001 -2.01% -1.02%
2000 -0.79% -1.38%
1999 -1.88% -2.21%
1998 -2.76% -2.56%
1997 -2.38% -4.08%
1996 -3.7% -4.53%
1995 -1.74% -4.38%
1994 -0.57% -8.09%
1993 -2.73% -8.54%
1992 -2.55% -7.09%
1991 -1.59% -4.85%
1990 1.08% -3.82%
1989 - -8.3%
1988 - -3.29%
1987 - -6.36%
1986 - -5.69%
1985 - -4.86%
1984 - -5.24%
1983 - -5.3%
1982 - -3.88%
1981 - -3.72%
1980 - -1.91%
1979 - -4.65%
1978 - -5.42%
1977 - -5.52%
1976 - -4.19%
1975 - -2.62%
1974 - -1.5%
1973 - -4.54%
1972 - -5.39%
1971 - -1.96%
1970 - -3.19%
1969 - -3.94%
1968 - -3.38%
1967 - -3.8%
1966 - -3.04%
1965 - -3.15%
1964 - -1.19%
1963 - -2.26%
1962 - -1.4%
1961 - -3.25%
1960 - -2.36%
1959 - -4.4%
1958 - -3.5%
1957 - -2.8%
1956 - -2.12%
1955 - -2.9%
1954 - -2.53%
1953 - -3.72%
1952 - -4.14%
1951 - -0.4%
1950 - -2.33%
1949 - -6.87%
1948 - -6.03%
1947 - -1.82%
1946 - -4.03%
1945 - -7.41%
1944 - -8.94%
1943 - -8.49%
1942 - -9.08%
1941 - -7.3%
1940 - -10.9%
1939 - -2.96%
1938 - -3.91%
1937 - -2.16%
1936 - -2.58%
1935 - -3.2%
1934 - -3.29%
1933 - -3.31%
1932 - -4.72%
1931 - -5.31%
1930 - -5.19%
1929 - -4.41%
1928 - -3.29%
1927 - -3.79%
1926 - -4.76%
1925 - -4.92%
1924 - -4.72%
1923 - -5.53%
1922 - -4.51%
1921 - -5.38%
1920 - -5.52%
1919 - -2.6%
1918 - -3.7%
1917 - -3.52%
1916 - -2.57%
1915 - -10.7%
1914 - -11.6%
1913 - -4.15%

Data sources: International Monetary Fund (IMF) | Public Finances in Modern History (1913–1999, retrieved 2026-07-08); International Monetary Fund (IMF) | Fiscal Monitor (1990–2025, retrieved 2026-07-08).

GeoRank.org/economy/namibia/south-africa | CC BY

In 2025, Namibia's government deficit, the difference between spending and revenue, was $974M, equivalent to 6.46% of GDP. This compares to South Africa's deficit of $24.7B, or 5.78% of GDP.

Over the past 36 years, Namibia recorded a fiscal deficit in 32 of those years, while South Africa ran a deficit in 34 years. On average, Namibia posted an annual deficit equal to 3.17% of GDP, compared to deficit of 3.8% of GDP for South Africa.

Inflation comparison by year

Inflation
Namibia

South Africa
1x
Year Consumer prices inflation
Namibia South Africa
2025 3.5% 3.21%
2024 4.2% 4.36%
2023 5.9% 6.08%
2022 6.1% 7.04%
2021 3.6% 4.62%
2020 2.2% 3.23%
2019 3.7% 4.1%
2018 4.3% 4.51%
2017 6.1% 5.19%
2016 6.7% 6.6%
2015 3.4% 4.52%
2014 5.3% 6.13%
2013 5.6% 5.78%
2012 6.7% 5.74%
2011 5% 5%
2010 4.9% 4.07%
2009 9.5% 7.24%
2008 9.1% 9.91%
2007 6.5% 6.18%
2006 5% 3.24%
2005 2.3% 2.06%
2004 4.1% -0.69%
2003 7.2% 5.68%
2002 12.7% 9.49%
2001 10.2% 5.7%
2000 10.2% 5.34%
1999 9.4% 5.18%
1998 6.6% 6.88%
1997 9.7% 8.6%

Data sources: International Monetary Fund (IMF) | World Economic Outlook (1997–2025, retrieved 2026-07-08); World Bank | Economy & Growth (1997–2025, retrieved 2026-07-08).

GeoRank.org/economy/namibia/south-africa | CC BY

Over the past 29 years, Namibia has recorded an average annual inflation rate of 6.2%, compared with 5.34% in South Africa. In 2025, inflation was 3.5% in Namibia and 3.21% in South Africa.

Top exports between countries

Namibia
Export category Export value
Precious metals & jewellery $1.14B
Animal & marine products $140M
Raw materials & minerals $101M
Processed food, beverages & tobacco $80M
Metals $52.7M
Wood & paper products $25.9M
Machinery & equipment $25.5M
Raw agricultural goods $23.2M
Chemicals & pharma $17.5M
Textiles & consumer goods $4.6M
South Africa
Export category Export value
Machinery & equipment $1.39B
Processed food, beverages & tobacco $627M
Chemicals & pharma $583M
Textiles & consumer goods $473M
Raw materials & minerals $372M
Metals $260M
Raw agricultural goods $166M
Wood & paper products $153M
Animal & marine products $77.4M
Miscellaneous $37.2M

Balance of trade

Namibia South Africa
Current account balance
-$1.83B
2024
-$1.81B
2025
Current account balance ranking
138/190
2024
135/190
2025
Current account balance, % of GDP
-13.4%
2024
-0.42%
2025
Goods imports
$6.77B
2024
$104B
2025
Goods exports
$4.67B
2024
$116B
2025
Service imports
$2.47B
2024
$21.8B
2025
Service exports
$1.29B
2024
$18.1B
2025
Imports of goods and services, % of GDP
63.9%
2025
29.5%
2025
Exports of goods and services, % of GDP
44.7%
2025
31.4%
2025

Economic freedom indices

The indices of economic freedom below are issued by the Heritage Foundation. Higher scores indicate stronger economic health.

Namibia South Africa
Economic freedom 60.2 58.6
Economic freedom ranking 95/197 110/197
Property rights 63.1 48.8
Government integrity 51.5 46.7
Judicial effectiveness 67.2 64.6
Tax burden 66.4 65.4
Government spending 57.1 68.4
Fiscal health 60.5 45.3
Business freedom 58 67.9
Labor freedom 62.7 70.8
Monetary freedom 76.1 75.8
Trade freedom 69.8 68.8
Investment freedom 50 40
Financial freedom 40 40

Economic freedom comparison by year

Namibia
South Africa
1x
Year Economic freedom index
Namibia South Africa
2026 60.2 58.6
2025 58.7 57.3
2024 57.5 55.3
2023 57.7 55.7
2022 59.2 56.2
2021 62.6 59.7
2020 60.9 58.8
2019 58.7 58.3
2018 58.5 63
2017 62.5 62.3
2016 61.9 61.9
2015 59.6 62.6
2014 59.4 62.5
2013 60.3 61.8
2012 61.9 62.7
2011 62.7 62.7
2010 62.2 62.8
2009 62.4 63.8
2008 61.4 63.4
2007 63.5 63.5
2006 60.7 63.7
2005 61.4 62.9
2004 62.4 66.3
2003 67.3 67.1
2002 65.1 64
2001 64.8 63.8
2000 66.7 63.7
1999 66.1 63.3
1998 66.1 64.3
1997 61.6 63.2
1996 - 62.5
1995 - 60.7

Data sources: The Heritage Foundation | Economic Freedom Index (1995–2026, retrieved 2026-07-08).

GeoRank.org/economy/namibia/south-africa | CC BY

The Economic Freedom Index for Namibia is 60.2, ranking 95/197, compared to 58.6 for South Africa, ranking 110/197. The chart above displays a comparison of annual changes in economic freedom indexes.

Other economic metrics

Namibia South Africa
Services, % of GDP
55%
2025
63.1%
2025
Industry, % of GDP
28.9%
2025
24.1%
2025
Agriculture, forestry, and fishing, % of GDP
6.99%
2025
2.83%
2025
GNI, Atlas method
$13.4B
2025
$406B
2025
GNI per capita, PPP
$11,260
2025
$15,600
2025
Total reserves including gold
$3.1B
2025
$76B
2025
Total reserves ranking
119/177
2025
35/177
2025
Net foreign direct investment
-$1.89B
2024
-$1.85B
2025
Net inflows of foreign direct investment
$1.93B
2024
$2.33B
2024
Net outflows of foreign direct investment
$44.4M
2024
-$1.26B
2024
Servicing debt to the IMF, % of GNI n/a
5.74%
2024
Poverty at national poverty lines
17.4%
2015
37.9%
2022
Gross capital formation, % of GDP
18.7%
2025
13.9%
2025

GDP per capita map

1x

Data sources: World Bank | Economy & Growth (1985–2025, retrieved 2026-07-08); U.S. Census Bureau (1985–2025, retrieved 2026-07-08).

GeoRank.org/economy/namibia/south-africa | CC BY

Compare countries by 7 more topics

Help us show the world through your eyes

Share a photo of your city and help others discover what it looks like to live there. Your contribution makes our data come alive.

Data sources:

  1. World Bank | Economy & Growth (1960–2025, retrieved 2026-07-08)
  2. International Monetary Fund (IMF) | Public Finances in Modern History (1913–1999, retrieved 2026-07-08)
  3. International Monetary Fund (IMF) | Fiscal Monitor (1990–2025, retrieved 2026-07-08)
  4. The Heritage Foundation | Economic Freedom Index (1995–2026, retrieved 2026-07-08)
  5. U.S. Census Bureau (1985–2025, retrieved 2026-07-08)
  6. TradeMap (2025, retrieved 2026-07-08)
  7. United Nations | World Population Prospects (2026, retrieved 2026-07-08)
  8. LivingCost (2026, retrieved 2026-07-08)

Creative Commons Attribution (CC BY) — you’re free to copy, share, remix, adapt, and use even commercially as long as you give appropriate credit and clearly indicate if you made changes. Other sources may be subject to different license terms.

The current account balance is the sum of net trade in goods and services, net earnings from cross-border investments, and net transfer payments. It reflects a country's economic transactions with the rest of the world and is a fundamental component of the balance of payments. A surplus indicates that a country exports more than it imports, while a deficit shows the opposite.

Gross National Income (GNI) measures a country's total income. It encompasses income earned by residents, businesses, and foreign sources, defined as employee compensation and investment profits. GNI adds product taxes not included elsewhere and subtracts subsidies. It accounts for income from residents working abroad but excludes earnings from foreigners within the country.

A negative value for Net Foreign Direct Investment indicates a country is a net receiver of investments, as foreign inflows exceed outflows after Balance of Payments adjustments. A positive value indicates a net provider, with outflows exceeding inflows. Inflows are credits (increasing foreign claims on domestic assets), while outflows are debits (increasing domestic assets abroad).

Foreign direct investment (FDI, net inflows) shows how much capital foreign investors bring into a country after accounting for any funds that flow back in the opposite direction. It represents the net value of overseas companies establishing, expanding, or financing businesses in the reporting country. A positive number means more capital entered the country than was withdrawn, while a negative number means foreign investors pulled out more than they invested.

Foreign direct investment (FDI, net outflows) shows how much capital residents of a country invest abroad after accounting for any funds that flow back in the opposite direction. It represents the net value of domestic companies establishing, expanding, or financing businesses in other countries. A positive number means more capital was invested abroad than withdrawn, while a negative number means residents pulled back more than they invested.

Principal and interest payments to the IMF in currency, goods, or services on long-term debt expressed as a share of GNI.

Formerly gross domestic investment, gross capital formation measures the share of a country’s economic output invested in fixed assets, including buildings, machinery, and infrastructure. It indicates how much of the economy is devoted to building productive capacity.