Government is the means by which a society organizes and allocates authority in order to accomplish collective goals and provide benefits that citizens need and want. The type of government that a society has will affect how it does these things, but most governments around the world try to accomplish the same basic tasks: secure national borders and economic prosperity, protect the health and safety of citizens, and take care of its people in the form of education, healthcare, housing, and other social services. In recent years, some governments have begun to transfer these responsibilities from themselves to private companies that are more capable of providing these services at a lower cost.

The word government is derived from the Latin word gubernator, which means “supreme ruler.” Governments are typically organized into distinct institutions with specific powers, functions, duties, and responsibilities known as branches of government. The number and types of branches of government vary among countries, but most have some type of separation of powers and checks and balances. This system prevents one branch of government from becoming too powerful and allows individuals to influence the process of lawmaking at different stages. For example, if a president’s action violates the constitution, Congress can override that decision with a two-thirds vote in both houses of Congress.

Another important aspect of government is that it limits the power of its officials and guarantees the rights of citizens. These principles are reflected in the Bill of Rights and other laws that govern the United States. Governments also promote free market economies, encourage private ownership of businesses and property, and ensure a high level of safety for citizens.

Most modern countries have a form of government that is democratic. In this kind of government, a few people out of all the voters are elected to make laws and serve as representatives for the whole country. Many governments also have a judiciary or other judicial branch to enforce laws and protect individual rights.

Governments raise money for the work they do by charging fees and taxes, and by selling securities called bonds. These investments are backed by the government and give investors a fixed rate of return for an agreed-upon period of time. Governments then spend this money on goods and services, such as roads and bridges, national defense, public schools, social programs, and more.

Government employees often have more job security than private-sector workers, and are less likely to be laid off or fired. In addition, working for a government provides the opportunity to contribute to the public good in a way that is not possible in a private business. This is why so many people seek careers in the public sector. However, the role of government has changed as societies have evolved. Many people now see the need to support private charities and other organizations that can provide social services more effectively than a government can. A sense of duty to help others may still be fulfilled by a government, but the invisible hand of free markets is more effective in creating wealth and lifting people out of poverty than a mandate from a central authority.