91 15.2 Population

Fertility and Birth Rates

Fertility refers to the number of live births. Demographers use several measures of fertility. One measure is the crude birth rate, or the number of live births for every 1,000 people in a population in a given year. We call this a “crude” birth rate because the population component consists of the total population, not just the number of women or even the number of women of childbearing age (commonly considered 15–44 years).

A second measure is the general fertility rate (also just called the fertility rate or birth rate), or the number of live births per 1,000 women aged 15–44 (i.e., of childbearing age). The US general fertility rate for 2010 was about 64.7 (i.e., 64.7 births per 1,000 women aged 15–44) (Sutton & Hamilton, 2011).

A third measure is the total fertility rate, or the number of children an average woman is expected to have in her lifetime (taking into account that some women have more children and some women have fewer or no children). This measure often appears in the news media and is more easily understood by the public than either of the first two measures. In 2010, the US total fertility rate was about 1.93 (or 1,930 births for every 1,000 women) (Hamilton, Martin, & Ventura, 2011).

Demographers use several measures of fertility. The general fertility rate refers to the number of live births per 1,000 women aged 15–44. The US general fertility rate is about 65.5.

Daniel – Delivery – CC BY-NC-ND 2.0.

As Figure 15.1 “US General Fertility Rate, 1920–2010” indicates, the US general fertility rate has changed a lot since 1920, dropping from 101 (per 1,000 women aged 15–44) in 1920 to 70 in 1935, during the Great Depression, before rising afterward until 1955. (Note the very sharp increase from 1945 to 1955, as the post–World War II baby boom began.) The fertility rate then fell steadily after 1960 until the 1970s but has remained rather steady since then, fluctuating only slightly between 65 and 70 per 1,000 women aged 15–44.

Fertility rates differ around the world and are especially high in poor nations (see Figure 15.2 “Crude Birth Rates around the World, 2008 (Number of Births per 1,000 Population)”). Demographers identify several reasons for these high rates (Weeks, 2012).

First, poor nations are usually agricultural ones. In agricultural societies, children are an important economic resource, as a family will be more productive if it has more children. This means that families will ordinarily try to have as many children as possible. Second, infant and child mortality rates are high in these nations. Because parents realize that one or more of their children may die before adulthood, they have more children to make up for the anticipated deaths.

A third reason is that many parents in low-income nations prefer sons to daughters, and, if a daughter is born, they try again for a son. Fourth, traditional gender roles are often very strong in poor nations, and these roles include the belief that women should be wives and mothers above all. With this ideology in place, it is not surprising that women will have several children. Finally, contraception is uncommon in poor nations. Without contraception, many more pregnancies and births certainly occur. For all these reasons, then, fertility is much higher in poor nations than in rich nations.

Poor nations have higher birth rates for several reasons. One reason is the agricultural economies typical of these nations. In these economies, children are an important economic resource, and families will ordinarily try to have as many children as possible.

Wikimedia Commons – public domain.

Mortality and Death Rates

Mortality is the flip side of fertility and refers to the number of deaths. Demographers measure it with the crude death rate, the number of deaths for every 1,000 people in a population in a given year. We call this a “crude” death rate because the population component consists of the total population and does not take its age distribution into account. All things equal, a society with a higher proportion of older people should have a higher crude death rate. Demographers often calculate age-adjusted death rates that adjust for a population’s age distribution.

Migration

Another important demographic concept is migration, the movement of people into and out of specific regions. Since the dawn of human history, people have migrated in search of a better life, and many have been forced to migrate by ethnic conflict or the slave trade.

Several classifications of migration exist. When people move into a region, we call it in-migration, or immigration; when they move out of a region, we call it out-migration, or emigration. The in-migration rate is the number of people moving into a region for every 1,000 people in the region, while the out-migration rate is the number of people moving from the region for every 1,000 people. The difference between the two is the net migration rate (in-migration minus out-migration). Recalling our earlier discussion. Michigan has had a net migration of less than zero, as its out-migration has exceeded its in-migration.

Migration can also be either domestic or international in scope. Domestic migration happens within a country’s national borders, as when retired people from the northeastern United States move to Florida or the Southwest. International migration happens across national borders. When international immigration is heavy, the effect on population growth and other aspects of national life can be significant, as can increased prejudice against the new immigrants. Domestic migration can also have a large impact. The great migration of African Americans from the South into northern cities during the first half of the twentieth century changed many aspects of those cities’ lives (Wilkerson, 2011). Meanwhile, the movement during the past few decades of northerners into the South and Southwest also had quite an impact: The housing market initially exploded, for example, and traffic increased.

The Debate over Overpopulation

Many experts continue to be concerned about overpopulation, as they feel it is directly responsible for the hunger and malnutrition that plague hundreds of millions of people in poor nations (Gillis, 2011). One expert expressed this concern: “Every billion more people makes life more difficult for everybody—it’s as simple as that. Is it the end of the world? No. Can we feed 10 billion people? Probably. But we obviously would be better off with a smaller population” (Gillis & Dugger, 2011, p. A1). Recognizing this problem, India has begun giving cash bonuses to poor, rural married couples, who typically have high fertility rates, to wait to have children, and it has intensified its encouragement of contraception (Yardley, 2010).

Calls during the 1970s for zero population growth (ZPG) population control stemmed from concern that the planet was becoming overpopulated and that food and other resources would soon be too meager to support the world’s population.

James Cridland – Crowd – CC BY 2.0.

However, other experts say the world’s resources remain sufficient and minimize the problem of overpopulation. They acknowledge that widespread hunger in Africa and other regions does exist. However, they attribute this problem not to overpopulation and lack of food but rather to problems in distributing the sufficient amount of food that does in fact exist. As an official for Oxfam International explained, “Today’s major problems in the food system are not fundamentally about supply keeping up with demand, but more about how food gets from fields and on to forks” (2011). The official added that enough grain (cereal and soy) exists to easily feed the world, but that one-third of cereal and 90 percent of soy feed livestock instead. Moving away from a meat-laden Western diet would thus make much more grain available for the world’s hungry poor.

Sociologists Stephen J. Scanlan and colleagues add that food scarcity results from inequalities in food distribution rather than from overpopulation: “[Food] scarcity is largely a myth. On a per capita basis, food is more plentiful today than any other time in human history…Even in times of localized production shortfalls or regional famines there has long been a global food surplus…A good deal of thinking and research in sociology…suggests that world hunger has less to do with the shortage of food than with a shortage of affordable or accessible food. Sociologists have found that social inequalities, distribution systems, and other economic and political factors create barriers to food access” (Scanlan, Jenkins, & Peterson, 2010, p. 35).

This sociological view has important implications for how the world should try to reduce global hunger. International organizations such as the World Bank and several United Nations agencies have long believed that hunger is due to food scarcity, and this belief underlies the typical approaches to reducing world hunger that focus on increasing food supplies with new technologies and developing more efficient methods of delivering food. But if food scarcity is not a problem, then other approaches are necessary. According to Scanlan et al., these approaches involve reducing the social inequalities that limit poor nations’ access to food.

As an example of one such inequality, Scanlan et al. point out that poor nations lack the funds to import the abundant food that does exist. These nations’ poverty, then, is one inequality that leads to world hunger, but gender and ethnic inequalities are also responsible. Nations with higher rates of gender inequality and ethnic inequality have higher rates of hunger. In view of this fact, the authors emphasize that improvements in gender and ethnic equality are necessary to reduce global hunger: “International attention to food security should therefore shift from increasing food supply to regulating armed conflict, improving human rights, and promoting gender equity throughout the world—factors that reduce barriers to access and empower populations throughout the world to benefit from their food entitlements” (Scanlan et al., 2010, p. 39).

Demographic Transition Theory

As we consider whether overpopulation is the threat that Malthus and contemporary concerned scientists have considered it to be, it is important to appreciate demographic transition theory, mentioned earlier. This theory links population growth to the level of technological development across three stages of social evolution and suggests that this growth slows considerably as nations become more industrialized.

In the first stage, coinciding with preindustrial societies, the birth rate and death rate are both high. The birth rate is high because of the lack of contraception and the several other reasons cited earlier for high fertility rates, and the death rate is high because of disease, poor nutrition, lack of modern medicine, and other problems. These two high rates cancel each other out, and little population growth occurs.

In the second stage, coinciding with the development of industrial societies, the birth rate remains fairly high, owing to the lack of contraception and a continuing belief in the value of large families, but the death rate drops because of several factors, including increased food production, better sanitation, and improved medicine. Because the birth rate remains high but the death rate drops, population growth takes off dramatically.

In the third stage, the death rate remains low, but the birth rate finally drops as families begin to realize that large numbers of children in an industrial economy are more of a burden than an asset. Another reason for the drop is the availability of effective contraception. As a result, population growth slows, and, as we saw earlier, it has become quite low or even gone into a decline in several industrial nations.

Demographic transition theory, then, gives us more reason to be cautiously optimistic regarding the threat of overpopulation: As poor nations continue to modernize—much as industrial nations did two hundred years ago—their population growth rates should start to decline.

Still, population growth rates in poor nations continue to be high, and, as already mentioned, gender and ethnic inequality helps allow rampant hunger to persist. Hundreds of thousands of women die in poor nations each year during pregnancy and childbirth. Reduced fertility would save their lives, in part because their bodies would be healthier if their pregnancies were spaced farther apart (Schultz, 2008). Although world population growth is slowing, then, it is still growing too rapidly in poor nations. To reduce it further, more extensive family planning programs are needed, as is economic development in general: Women who are better educated and have more money tend to have lower fertility.

Population Decline and Pronatalism

Spain is one of several European nations that have been experiencing a population decline because of lower birth rates. Like some other nations, Spain has adopted pronatalist policies to encourage people to have more children; it provides €2,500, about $3,400, for each child.

paul.hartrick – Spain-477 – CC BY-NC 2.0.

If population growth remains a problem in poor nations, population decline is a problem in some industrial nations. As noted earlier, some nations are even experiencing population declines, while several more are projected to have population declines by 2050 (Brooks, 2012). For a country to maintain its population, the average woman needs to have 2.1 children, the replacement level for population stability. But several industrial nations, not including the United States, are below this level. Increased birth control is one reason for their lower fertility rates but so are decisions by women to stay in school longer, to go to work right after their schooling ends, and to postpone having their first child.

Ironically, these nations’ population declines have begun to concern demographers and policymakers (Haartsen & Venhorst, 2010). Because people in many industrial nations are living longer while the birth rate drops, these nations are increasingly having a greater proportion of older people and a smaller proportion of younger people. In several European nations, there are more people 61 or older than 19 or younger. As this trend continues, it will become increasingly difficult to take care of the health and income needs of so many older persons, and there may be too few younger people to fill the many jobs and provide the many services that an industrial society demands. The smaller labor force may also mean that governments will have fewer income tax dollars to provide these services.

To deal with these problems, several governments have initiated pronatalist policies aimed at encouraging women to have more children. In particular, they provide generous child-care subsidies, tax incentives, and flexible work schedules designed to make it easier to bear and raise children, and some even provide couples outright cash payments when they have an additional child. Russia in some cases provides the equivalent of about $9,000 for each child beyond the first, while Spain provides €2,500 (equivalent to about $3,400) for each child (Haub, 2009).

Immigration Today

Immigration continues to be a major concern for many Americans today, whose concern centers mostly on Mexican immigrants even though they are less than a majority of all immigrants. According to political scientist Victoria M. DeFrancesco Soto (2012), this focus stems from racial prejudice: “Let’s call a spade a spade. Opposition to immigration is not a concern rooted in personal economic concerns. Neither is it a concern having to do with state’s rights. Anti-immigrant sentiment isn’t even about immigrants as a whole. As rigorous social scientific research shows, opposition to immigration is closely linked to the negative racial animus toward one very specific group, Latinos.”

As we try to make sense of immigration and of immigration policy, some basic facts are worth appreciating. The number of immigrants greatly increased two or three decades ago, but the number of illegal immigrants entering the United States now is very small compared to just a decade ago (Myers, 2012). Foreign-born residents composed 12.9 percent of the US population in 2010, or 40 million immigrants overall, compared to only 7.9 percent in 1990 (Immigration Policy Center, 2012). Almost one-third of immigrants are Mexican, while one-fourth are Asian. Most of the remainder come from the Caribbean, Central America, and South America. Slightly more than half of all foreign-born residents come from Mexico or one of the other Latin American nations. Almost 40 percent of Latinos and two-thirds of Asians in the United States are foreign-born.

Almost three-fourths of immigrants are naturalized US citizens, legal residents, or legal temporary migrants. Slightly more than one-fourth, 28 percent, or about 11 million people, are illegal residents. About 60 percent, or almost 7 million, of these residents are Mexican. Approximately 4.5 million children born in the United States, who are thus citizens, have at least one parent who is an unauthorized immigrant.

Unauthorized immigrants compose more than 5 percent of the US labor force, a number equivalent to 8 million workers. Households headed by unauthorized immigrants paid an estimated $11.2 billion in state and federal taxes in 2010. According to the Immigration Policy Center (2012), if all unauthorized immigrants somehow left the United States, the US economy would suffer an annual loss of 2.8 million jobs, $552 billion in economic activity, and $245 billion in gross domestic product (GDP).

As these labor and economic figures make clear, illegal immigrants form an important component of the US economy. In another fact that may surprise immigration opponents, many studies also find that immigrants, both legal and illegal, have lower crime rates than nonimmigrants (Wadsworth, 2010). These low rates are thought to stem from immigrants’ stable families, strong churches, and high numbers of small businesses that make for stable neighborhoods. Ironically, as immigrants stay longer in the United States, the crime rates of their children, and then those of their children’s children, become higher. As immigrant families stay longer in the United States, then, their crime rates tend to rise, in part because they become “Americanized” (Sampson, 2008).

Efforts to Limit Immigration

Although immigrants strengthen the US economy and have low crime rates, much of the public is opposed to immigration. In the 2010 General Social Survey (GSS), half the respondents said that the number of immigrants to the United States should be reduced by “a little” or “a lot,” and only about 14 percent said this number should be increased. In a 2011 CNN poll, one-third of the public said it is “somewhat” or “very” unsympathetic toward illegal immigrants and their families. In the same poll, more than half the public favored building a seven-hundred-mile fence along the border with Mexico (PollingReport.com, 2012).

In recent years, many states enacted strict laws regarding immigrants, including the denial of schooling and various social services to unauthorized immigrant families. Arizona, Georgia, and Alabama enacted some of the most restrictive legislation.

Arizona is one of several states that have enacted very restrictive laws regarding immigration.

Nevele Osteog – Immigration Reform Leaders Arrested in Washington DC – CC BY 2.0.

Arizona’s law, passed in 2010, made failing to carry immigration documents a crime and required the police to question and detain anyone they suspected of being an illegal immigrant. Previously, these restrictions had been the sole province of the federal government. Critics charged this new law would lead to ethnic and racial profiling, as only people who looked Mexican would be stopped by police for suspicion of being illegal (Archibold, 2010). They also noted that the new law caused an economic loss of $250 million during the first year after its enactment from a loss in conference and convention business in Arizona (Brown, 2011).

Georgia’s law, enacted in 2011, allowed police to demand immigration documents from criminal suspects and to hold suspects who do not provide documentation for deportation by federal officials. The law also made it more difficult to hire workers without proper documentation, increased the penalties for businesses that hire these workers, and provided penalties for people who house or transport unauthorized immigrants. Georgia’s Chamber of Commerce worried about the law’s economic impact, and in particular was concerned that the law would reduce tourism. Reports estimated that if the law forced all unauthorized workers to leave Georgia, the state’s agricultural industry would lose up to $1 billion annually, since unauthorized workers form the bulk of the Georgia’s farm labor force (Berman, 2011).

Alabama’s law, enacted in 2011, also allowed police to detain people suspected of being unauthorized immigrants. In addition, it required schools to record the immigration status of all students and also required people seeking a driver’s license to prove that they were US citizens. The law led to very long lines to renew driver’s licenses, and, because immigrant migrant workers left the state, many crops went unharvested on the state’s farms. Business leaders feared the law would harm the state’s economy, a fear that was heightened when a German executive at Mercedes-Benz was detained by police (Ott, 2012).

Several months after the Alabama law took effect, a study by a University of Alabama economist concluded that it had forced at least 40,000 and perhaps as many as 80,000 unauthorized workers to leave the state (Lee, 2012). The exit of so many workers caused an estimated annual loss to Alabama’s GDP of at least $2 billion, a loss in state and state revenue from income and sales taxes of at least $57 million, and a loss in local sales tax revenue of at least $20 million.

Self-Deportation

Many critics of immigration hope these and other laws and practices will make life so difficult for unauthorized immigrants that they engage in self-deportation by returning to Mexico or their other native countries. According to the Immigration Policy Center (2012), however, there is little evidence that self-deportation actually occurs. A major reason for this fact is that two-thirds of unauthorized adult immigrants have been in the United States for at least ten years, and almost half are parents of children born in the United States (who, as mentioned earlier, are thus US citizens). These adults and their children therefore have established roots in American soil and simply want to stay in the United States.

Detention

The federal government has the responsibility for detaining and deporting unauthorized immigrants. The number of immigrants detained every year exceeds 360,000, with an average detention length of almost three months; more than 1,000 individuals are detained for over a year. At a cost of more than $60,000 per detainee, the annual cost of this detention system exceeds $21 billion. Most detainees are in custody for technical violations of immigrant laws, such as overstaying a visa, rather than for serious criminal behavior. As such, they do not pose a public danger.

Debate continues over the extent to which the government should carry out deportation, but critics and even immigration judges decry the conditions under which illegal immigrants are detained (Semple, 2011). They say that detainees are denied basic due process rights, such as the right to have a court-appointed attorney. More than four-fifths have no legal representation at all, and those who do receive legal assistance often receive incompetent assistance.

Immigrants and Domestic Violence

Another immigration issue concerns battered women who are immigrants (Constable, 2012). When women are beaten or otherwise abused by their husbands or boyfriends, it is often difficult for them to leave their abusers (see Chapter 10 “The Changing Family”). But abused immigrant women face a special problem in this regard. Because often they are allowed to live in the United States only because their husbands are legal residents or citizens, they fear deportation if they go to the police and their husband is deported. Other abused immigrant women who are in the United States illegally similarly fear they will be deported if they go to the police. Fortunately, federal law now allows abused immigrant women to apply for legal residency, but many women are not aware of this possibility.

Although our discussion of immigration has painted a critical portrait of many aspects of US immigration policy, the United States actually ranks fairly high among the world’s nations in how it treats its immigrants. The Note 15.17 “Lessons from Other Societies” box discusses this international comparison in greater detail.