Public capital

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Public capital is the aggregate body of government-owned assets that are used as a means for productivity. [1] Such assets span a wide range including: large components such as highways, airports, roads, transit systems, and railways; local, municipal components such as public education, public hospitals, police and fire protection, prisons, and courts; and critical components including water and sewer systems, public electric and gas utilities, and telecommunications. [2] Often, public capital is defined as government outlay, in terms of money, and as physical stock, in terms of infrastructure.

Hospital health care institution

A hospital is a health care institution providing patient treatment with specialized medical and nursing staff and medical equipment. The best-known type of hospital is the general hospital, which typically has an emergency department to treat urgent health problems ranging from fire and accident victims to a sudden illness. A district hospital typically is the major health care facility in its region, with a large number of beds for intensive care and additional beds for patients who need long-term care. Specialized hospitals include trauma centers, rehabilitation hospitals, children's hospitals, seniors' (geriatric) hospitals, and hospitals for dealing with specific medical needs such as psychiatric treatment and certain disease categories. Specialized hospitals can help reduce health care costs compared to general hospitals. Hospitals are classified as general, specialty, or government depending on the sources of income received.

Police Law enforcement body

The police are a constituted body of persons empowered by a state to enforce the law, to protect the lives, liberty and possessions of citizens, and to prevent crime and civil disorder. Their powers include the power of arrest and the legitimized use of force. The term is most commonly associated with the police forces of a sovereign state that are authorized to exercise the police power of that state within a defined legal or territorial area of responsibility. Police forces are often defined as being separate from the military and other organizations involved in the defense of the state against foreign aggressors; however, gendarmerie are military units charged with civil policing. Police forces are usually public sector services, funded through taxes.

Fire protection all measures, that prevent or avoid the occurrence of a fire or the spread of fire

Fire protection is the study and practice of mitigating the unwanted effects of potentially destructive fires. It involves the study of the behaviour, compartmentalisation, suppression and investigation of fire and its related emergencies, as well as the research and development, production, testing and application of mitigating systems. In structures, be they land-based, offshore or even ships, the owners and operators are responsible to maintain their facilities in accordance with a design-basis that is rooted in laws, including the local building code and fire code, which are enforced by the Authority Having Jurisdiction.


Current state in the U.S.

In 1988, the U.S. infrastructure system including all public and private non-residential capital stock was valued at $7 trillion, an immense portfolio to operate and manage. [3] And according to the Congressional Budget Office, in 2004 the U.S. invested $400 billion in infrastructure capital across federal, state, and local levels including the private sectors on transportation networks, schools, highways, water systems, energy, and telecommunications services. While public spending on infrastructure grew by 1.7% annually between 1956 and 2004, it has remained constant as a share of GDP since early 1980s. [4] Despite the value and investment of public capital, growing delays in air and surface transportation, aging electric grid, an untapped renewable energy sector, and inadequate school facilities all have justified additional funding in public capital investment.

Infrastructure fundamental facilities and systems serving a country, city, or other area

Infrastructure is the fundamental facilities and systems serving a country, city, or other area, including the services and facilities necessary for its economy to function. Infrastructure is composed of public and private physical improvements such as roads, bridges, tunnels, water supply, sewers, electrical grids, and telecommunications. In general, it has also been defined as "the physical components of interrelated systems providing commodities and services essential to enable, sustain, or enhance societal living conditions".

Aviation Design, development, production, operation and use of aircraft

Aviation, or air transport, refers to the activities surrounding mechanical flight and the aircraft industry. Aircraft includes fixed-wing and rotary-wing types, morphable wings, wing-less lifting bodies, as well as lighter-than-air craft such as balloons and airships.

Transport Human-directed movement of things or people between locations

Transport or transportation is the movement of humans, animals and goods from one location to another. In other words the action of transport is defined as a particular movement of an organism or thing from a point A to the Point B. Modes of transport include air, land, water, cable, pipeline and space. The field can be divided into infrastructure, vehicles and operations. Transport is important because it enables trade between people, which is essential for the development of civilizations.

The American Society of Civil Engineers have continued to give low marks, averaging a D grade, for the nation’s infrastructure since its inception of the Report Card in 1998. In 2009, each category of infrastructure varied from C+ to D- grades with an estimated $2.2 trillion of needed public capital investment. The aviation sector remains mired in continued delays in the reauthorization of federal programs and an outdated air traffic control system. One in four rural bridges and one in three urban bridges are structurally deficient. States are understaffed and underfunded to conduct safety inspections of dams. Texas alone has only seven engineers and an annual budget of $435,000 to oversee more than 7,400 dams. Electricity demand outpaces energy supply transmission and generation. Almost half of the water locks maintained by the U.S. Army Corps of Engineers are functionally obsolete. Drinking water faces an annual shortfall of $11 billion to manage their aging facilities and comply with federal regulations. Leaking pipes lose an estimated 7 billion US gallons (26,000,000 m3) of clean drinking water a day. Under tight budgets, national, state, and local parks suffer neglect. Without adequate funding, rail cannot meet future freight tonnage load. Schools require a staggering $127 billion to bring facilities to decent operating condition. Billions of gallons of untreated sewage continue to be discharged into U.S.’s surface waters each year. [5]

American Society of Civil Engineers professional association

The American Society of Civil Engineers (ASCE) is a tax-exempt professional body founded in 1852 to represent members of the civil engineering profession worldwide. Headquartered in Reston, Virginia, it is the oldest national engineering society in the United States. Its constitution was based on the older Boston Society of Civil Engineers from 1848.

Air traffic control A public service provided for the purpose of maintaining the safe and orderly flow of air traffic

Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC worldwide is to prevent collisions, organize and expedite the flow of air traffic, and provide information and other support for pilots. In some countries, ATC plays a security or defensive role, or is operated by the military.

Bridge structure built to span physical obstacles

A bridge is a structure built to span a physical obstacle, such as a body of water, valley, or road, without closing the way underneath. It is constructed for the purpose of providing passage over the obstacle, usually something that can be detrimental to cross otherwise. There are many different designs that each serve a particular purpose and apply to different situations. Designs of bridges vary depending on the function of the bridge, the nature of the terrain where the bridge is constructed and anchored, the material used to make it, and the funds available to build it.

Economic growth

One of the most classic macroeconomic inquiries is the effect of public capital investment on economic growth. While many analysts debate the magnitude, evidence has shown a statistically significant positive relationship between infrastructure investment and economic performance. [1] U.S. Federal Reserve economist David Alan Aschauer asserted an increase of the public capital stock by 1% would result in an increase of the total factor productivity by 0.4%. [6] Aschauer argues that the golden age of the 1950s and 1960s were partly due to the post-World War II substantial investment in core infrastructure (highways, mass transit, airports, water systems, electric/gas facilities). Conversely, the drop of U.S. productivity growth in the 1970s and 1980s was in response to the decrease of continual public capital investment and not the decline of technological innovation. [1] Likewise, the European Union nations have declined public capital investment through the same years, also witnessing declining productivity growth rates. [6] A similar situation emerges in developing nations. Analyzing OECD and non-OECD countries’ real-GDP growth rates from 1960 to 2000 with public capital as an explanatory variable (not using public investment rates), Arslanalp, Borhorst, Gupta, and Sze (2010) show that increases in the public capital stock does correlate with increases in growth. However, this relationship depends on initial levels of public capital and income levels for the country. Thus, OECD countries witness a stronger positive link in the short term while non-OECD countries experience a stronger positive link in the long term. Hence, developing countries can benefit from non-concessional foreign borrowing to finance high-prospect public capital investments. [7]

Economic growth increase in production and consumption in an economy

Economic growth is the increase in the inflation-adjusted market value of the goods and services produced by an economy over time. It is conventionally measured as the percent rate of increase in real gross domestic product, or real GDP.

In economics, total-factor productivity (TFP), also called multi-factor productivity, is the portion of output not explained by traditionally measured inputs of labour and capital used in production. TFP is calculated by dividing output by the weighted average of labour and capital input, with the standard weighting of 0.7 for labour and 0.3 for capital. Total factor productivity is a measure of economic efficiency and accounts for part of the differences in cross-country per-capita income. The rate of TFP growth is calculated by subtracting growth rates of labor and capital inputs from the growth rate of output.

Post–World War II economic expansion

The post–World War II economic expansion, also known as the Golden Age of Capitalism, postwar economic boom, the long boom, was a period of strong economic growth beginning after World War II and ending with the 1973–75 recession. The United States, Soviet Union, Western European and East Asian countries in particular experienced unusually high and sustained growth, together with full employment. Contrary to early predictions, this high growth also included many countries that had been devastated by the war, such as Japan, West Germany and Austria (Wirtschaftswunder), South Korea, France, Italy, and Greece.

Given this relationship of public capital and productivity, public capital becomes a third input in the standard, neoclassical production function:

Neoclassical economics is an approach to economics focusing on the determination of goods, outputs, and income distributions in markets through supply and demand. This determination is often mediated through a hypothesized maximization of utility by income-constrained individuals and of profits by firms facing production costs and employing available information and factors of production, in accordance with rational choice theory, a theory that has come under considerable question in recent years.

Production function physical output of a production process to physical inputs or factors of production

In economics, a production function gives the technological relation between quantities of physical inputs and quantities of output of goods. The production function is one of the key concepts of mainstream neoclassical theories, used to define marginal product and to distinguish allocative efficiency, a key focus of economics. One important purpose of the production function is to address allocative efficiency in the use of factor inputs in production and the resulting distribution of income to those factors, while abstracting away from the technological problems of achieving technical efficiency, as an engineer or professional manager might understand it.


Yt represents real aggregate output of goods and services of the private sector
At represents productivity factor or Hicks-Neutral technical change
Nt represents aggregate employment of labor services
Kt represents aggregate stock of nonresidential capital
Gt represents flow of public capital stock (assuming services of public capital are proportional to public capital) [8]

In this form, public capital has a direct influence on productivity as a third variable. Additionally, public capital has an indirect influence on multifactor productivity as it affects the other two inputs of labor and private capital. [9] Despite this unique nature, public capital investment, used in the production process of nearly every sector, is not sufficient on its own to generate sustained economic growth. [6] Thus, rather than the ends, public capital is the means. That is, instead of being seen as intermediate goods used as resources by businesses, public capital should be seen as goods which are used to make the final goods and services to consumers-taxpayers. [2] Note that public capital levels should not be too high that it leads to financing costs and high tax rates issues which will negate the positive benefits of such investments. [7] Moreover, infrastructure services carry the market-distorting features of pure, non-rival public goods; network externalities; natural monopolies; and the common resource problem such as congestion and overuse. [6]

Intermediate good partly finished goods, used as inputs in the production of other goods including final goods

Intermediate goods or producer goods or semi-finished products are goods, such as partly finished goods, used as inputs in the production of other goods including final goods. A firm may make and then use intermediate goods, or make and then sell, or buy then use them. In the production process, intermediate goods either become part of the final product, or are changed beyond recognition in the process. This means intermediate goods are resold among industries.

Network effect positive effect that an additional user of a good or service has on the value of that product to others

A network effect is the effect described in economics and business that an additional user of a good or service has on the value of that product to others. When a network effect is present, the value of a product or service increases according to the number of others using it.

In economics, a common-pool resource (CPR) is a type of good consisting of a natural or human-made resource system, whose size or characteristics makes it costly, but not impossible, to exclude potential beneficiaries from obtaining benefits from its use. Unlike pure public goods, common pool resources face problems of congestion or overuse, because they are subtractable. A common-pool resource typically consists of a core resource, which defines the stock variable, while providing a limited quantity of extractable fringe units, which defines the flow variable. While the core resource is to be protected or nurtured in order to allow for its continuous exploitation, the fringe units can be harvested or consumed.

Empirical models that attempt to estimate the public investment and economic growth link involve a wide variety including: the Cobb-Douglas production function; a behavioral approach cost/profit function which includes public capital stock; Vector Auto Regression (VAR) models; and government investment growth regressions. These models nonetheless contend with reverse causality, heterogeneity, endogeneity, and nonlinearities in trying to capture the public capital and economic growth link. [6] New Keynesian models, though, analyze the effect of government spending through the supply side rather than traditional Keynesian models that analyzes it through the demand side. Therefore, a temporary surge of infrastructure investment yields an expansion of output, and vice versa that dwindling infrastructure, like in the 1970s, hamper longer-term movement in productivity. [10] Furthermore, new research on regional growth (as opposed to national growth with GDP) shows a strong positive relationship between public capital and productivity. Both fixed costs and transport costs lower with expanded infrastructure in localities and the resulting cluster of industries. As a result, economic activity grows along its pattern of trade. [6] Therefore, the importance of regional clusters and metropolitan economies comes into effect.

Social benefit

Beyond economic performance, public capital investment yields returns in quality of life indicators such as health, safety, recreation, aesthetics, and leisure time and activities. In example, highways provide better access and mobility for increased discretionary time and recreational outlets; mass transit can improve air quality with reduced number of private vehicles; improved municipal waste facilities reduces toxic groundwater contamination and better green space aesthetics such as parks; expanded water facilities aids in health and sanitation and environment such as reducing odor and sewer overflows. [1] Furthermore, infrastructure adds to community ambience and quality of place with livelier downtowns, vibrant waterfronts, efficient land uses, compact spaces for commerce and recreation. [11]

On the contrary, inadequate public capital impairs quality of life and social well-being. Over-capacity landfills lead to groundwater contamination, having deleterious effects on health. Deficient supply and quality of mass transit services impacts transit-dependents on their access to opportunity and resources. Increasing congestion in airports and roadways causes loss of discretionary time and recreational activities. [1] The lack of efficient U.S. freight and passenger rail service will neither aid in handling the “perfect storm” of environmental and energy sustainability nor meet the global competitive need of transporting goods and services at heightened speeds and times. [12] Also, the continued loss of footing in clean energy technology will contribute to U.S.’s future loss of prosperity on the global stage in terms of the carbon footprint and economy. [11]

Public capital initiatives

United States

Perhaps the largest contribution to the public works system in the U.S. came out of President Franklin D. Roosevelt’s New Deal initiatives particularly the creation of the Works Progress Administration (WPA) in 1935. At a time of a deep economic crisis, the WPA employed at its peak 3.35 millions unemployed heads-of-households to work in rebuilding the country. The program helped construct millions of roads, bridges, parks, schools, hospitals, and levees while also providing educational programs, childcare, job training, and medical services. The overall public spending level for the program, unprecedented at the time, was $4.8 billion ($76 billion in 2008 dollars), and helped to stimulate the economy through public works projects. [13]

Since then, the U.S. has contributed to other large infrastructure programs including the Interstate Highway System, 1956-1990, with a dedicated financing system through the gas tax and a matching contribution between federal government and states at 90% to 10%. [14] Also, the Environmental Protection Agency's (EPA) Clean Water Act of 1972 provided a public capital investment of $40 billion in constructing and upgrading sewage treatment facilities with “significant positive impacts on the Nation’s water quality.” [1] Considered by the National Academy of Engineering to be the greatest engineering achievement of the 20th century, the North American electric grid carries electricity over 300,000 miles (480,000 km) on high-voltage transmission lines across the U.S. Though currently facing aging facilities and equipment, this public capital investment has ubiquitously reached millions of homes and businesses. [15] [16]

Recently, the American Recovery and Reinvestment Act (ARRA) is another example of large public capital investment. Of the $311 billion in appropriations, about $120 billion are set aside for crucial investment in Infrastructure and Science and Energy. Some of ARRA’s aims include smart grid technology, retrofitting of homes and federal buildings, automated aviation traffic control, advancing freight and passenger rail services, and upgrading water and waste facilities. [17]

Other countries

Worldwide, transformative public capital investments are taking place. China’s ambitious rapid high-speed rail program is estimated to extend 18,000 km by 2020. By the end of 2008, the country had a fleet of over 24,000 locomotives, the most lines in the world, the fastest express train in service, and longest high-speed track in the world. [18] UK, Denmark, and other countries in northern Europe that surround the Baltic Sea and North Sea, continue to develop their rapid expansion of off-shore wind farms. [19] With continued expansion of terminals and connection to nation’s comprehensive transport system, the Hong Kong International Airport is one of the largest engineering and architectural projects in the world. [20] In the last decade, Chile installed five combined cycle gas-turbined (CCGT) power plants to meet its nation’s growing energy needs. [21]

See also

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