The key determinants of change in american history x

Curiosity must first have been based on human family resemblances, such as similarity in body structure, voice, gait, and gestures. Such notions were instrumental in the establishment of family and royal dynasties. Early nomadic tribes were interested in the qualities of the animals that they herded and domesticated and, undoubtedly, bred selectively. The first human settlements that practiced farming appear to have selected crop plants with favourable qualities.

The key determinants of change in american history x

Determinants of per capita GDP growth[ edit ] In national income accounting, per capita output can be calculated using the following factors: Productivity improving technologies economic history Economic growth has traditionally been attributed to the accumulation of human and physical capital and the increase in productivity and creation of new goods arising from technological innovation.

Increases in productivity are the major factor responsible for per capita economic growth — this has been especially evident since the midth century.

Most of the economic growth in the 20th century was due to increased output per unit of labor, materials, energy, and land less input per widget. The balance of the growth in output has come from using more inputs. Both of these changes increase output. The increased output included more of the same goods produced previously and new goods and services.

During the Second Industrial Revolutiona major factor of productivity growth was the substitution of inanimate power for human and animal labor.

Also there was a great increase in power as steam powered electricity generation and internal combustion supplanted limited wind and water power. Other productivity improvements included mechanized agriculture and scientific agriculture including chemical fertilizers and livestock and poultry management, and the Green Revolution.

Interchangeable parts made with machine tools powered by electric motors evolved into mass productionwhich is universally used today.

The key determinants of change in american history x

Real food prices fell due to improvements in transportation and trade, mechanized agriculturefertilizersscientific farming and the Green Revolution.

Great sources of productivity improvement in the late 19th century were railroads, steam ships, horse-pulled reapers and combine harvestersand steam -powered factories. By the late 19th century both prices and weekly work hours fell because less labor, materials, and energy were required to produce and transport goods.

However, real wages rose, allowing workers to improve their diet, buy consumer goods and afford better housing. New goods and services included television, air conditioning and commercial aviation aftercreating enough new demand to stabilize the work week.

Productivity in the United States grew at an increasing rate throughout the 19th century and was most rapid in the early to middle decades of the 20th century. Demographic changes[ edit ] Demographic factors may influence growth by changing the employment to population ratio and the labor force participation rate.

Women with fewer children and better access to market employment tend to join the labor force in higher percentages. There is a reduced demand for child labor and children spend more years in school. The increase in the percentage of women in the labor force in the U.

Spending wave Other factors affecting growth[ edit ] Political institutions, property rights, and rule of law[ edit ] See also: These included new laws favorable to the establishment of business, including contract law and laws providing for the protection of private property, and the abolishment of anti-usury laws.

Enforcement of contractual rights is necessary for economic development because it determines the rate and direction of investments.

The key determinants of change in american history x

When the rule of law is absent or weak, the enforcement of property rights depends on threats of violence, which causes bias against new firms because they can not demonstrate reliability to their customers. Thanks to the underlying homogeneity of its land and people, England was able to achieve a unified legal and fiscal system since the Middle Ages that enabled it to substantially increase the taxes it raised after Many of these intermediate level institutions relied on informal private-order arrangements that combined with public-order institutions associated with states, to lay the foundations of modern rule of law states.

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In many urban areas the poor "invade" private or government land to build their houses, so they do not hold title to these properties. Much unregistered property is held in informal form through various property associations and other arrangements.

Reasons for extra-legal ownership include excessive bureaucratic red tape in buying property and building. In some countries it can take over steps and up to 14 years to build on government land.The social determinants of health (SDH) are the conditions in which people are born, grow, work, live, and age, and the wider set of forces and systems shaping the conditions of daily life.

Nov 20,  · Watch video · The presidencies of Kennedy and Johnson, Vietnam, Watergate, and other history unfold through the perspective of an /10(K).

Social determinants of health reflect the social factors and physical conditions of the environment in which people are born, live, learn, play, work, and age. Also known as social and physical determinants of health, they impact a wide range of health, functioning, and quality-of-life outcomes.

WHO | Social determinants of health

1. Introduction. In this review article, we look at adaptation to climate change through the lens of development economics. Since the development literature has firmly established the role of weather risk as a source of income volatility for the poor, and climate change is expected to increase this risk, we review the range of risk-coping mechanisms available to poorer households, with a focus.

qD = f (price, income, prices of related goods, tastes, expectations) It says that the quantity demanded of a product is a function of five factors: price, income of the buyer, the price of related goods, the tastes of the consumer, and any expectation the consumer has of future supply, prices.

The determinants of health Introduction. Many factors combine together to affect the health of individuals and communities. Whether people are healthy or not, is determined by their circumstances and environment.

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