Contemporary banking has been influenced by two important phenomena: deregulation and globalization, the latter having been a crucial driving force behind the former. A movement of deregulation gained momentum in the 1980s, when governments around the world began allowing market forces to play a larger role in determining the structure and performance of their banking systems. Deregulation was supported by an ideological current favouring privatization. At the same time, technological advances, especially in information processing and communications, eroded national financial-market boundaries by making it easier to obtain banking services from foreign or offshore banks, especially as offshore banking became a closer substitute for banking with domestic firms. The globalization of the banking industry soon followed in the form of cross-border bank mergers and the development of multinational banking corporations such as ABN AMRO, ING Group, and HSBC.

By the early 21st century it had become possible for almost anyone to hold offshore dollar deposits in Luxembourg, The Bahamas, the Cayman Islands, and elsewhere and to initiate transactions electronically. The breakdown of borders motivated banks (particularly larger banks) to base their operations in countries with minimal regulations and low taxes.

Consolidation has been a notable trend in banking, both within particular countries and across national borders. Mergers and acquisitions have reduced the number of banks worldwide, even as banking facilities and the availability of banking services have grown through ATMs, online banking, and branch banking. This trend has been especially visible in the United States, where the removal of restrictions on branch banking caused the number of banks to decline from more than 14,000 in the mid-1980s to fewer than 8,000 in the early 21st century. Beginning in the 1990s, the European Union has also witnessed a considerable degree of banking consolidation, thanks to an impressive number of bank mergers and acquisitions.

Deregulation and breakthroughs in telecommunications have also diminished the influence of conventional commercial banks relative to other kinds of financial firms. In their place, diversified financial firms (that is, firms combining conventional banking, insurance, and investment services) have gained support and regulatory favour, especially in industrialized nations. Such changes have been least apparent in Europe, where such mingling has long been practiced under the rubric of universal banking.

Banking services have also been extended to the poor, especially through the rise of microcredit associations. As developed in 1976 by the Grameen Bank of Bangladesh, microcredit associations have provided small loans (“microloans”) to millions of poor persons. Instead of relying upon collateral, as conventional banks do, to secure their loans, microcredit institutions rely upon their borrowers’ membership in village-based peer groups that are collectively responsible for loan repayments. Remarkably, default rates for the Grameen Bank have been far lower than those for traditional banks. In 2006 Grameen and its founder, Muhammad Yunus, were awarded the Nobel Prize for Peace.

The relative importance of conventional banks has also declined as a result of expanding opportunities for business firms to raise funds by issuing their own bonds (including low-grade junk bonds) and shares. Globalization has contributed to this trend by making it easier for firms to market their securities abroad—a development that was especially beneficial for firms in countries that lacked sophisticated financial infrastructure.

In response to competitive pressures, conventional banks increased their involvement in securities-related activities and began offering other nontraditional services. Some banks issued credit cards or acquired large credit-card-processing operations. Many developed facilities for online banking and for point-of-sale debit-card payments as well as for digital cash and smart cards, which could be used even by persons without bank accounts.

The history of banking in several countries is detailed in R.D. Richards, The Early History of Banking in England (1929, reprinted 1965); Stanley Chapman, The Rise of Merchant Banking (1984), its history in Great Britain from its beginnings in the mid-18th century to the start of World War II; Bray Hammond, Banks and Politics in America, from the Revolution to the Civil War (1957, reissued 1991). More recent and reliable in its economics is Howard Bodenhorn, State Banking in Early America: A New Economic History (2003). J.G. Van Dillen (compiler), History of the Principal Public Banks (1934, reprinted 1964), outlines banking history in 10 European countries and Russia from the end of the 15th century to 1815. Other regional studies include Abbott Payson Usher, The Early History of Deposit Banking in Mediterranean Europe (1943, reissued 1967); and Charles P. Kindleberger, A Financial History of Western Europe, 2nd ed. (1993). The origins of central banking are discussed in Vera C. Smith, The Rationale of Central Banking (1936, reprinted in 1990 as The Rationale of Central Banking and the Free Banking Alternative. Rondo E. Cameron et al., Banking in the Early Stages of Industrialization: A Study in Comparative Economic History (1967), is a classic treatment of banking and economic development.

Good general surveys of banking and finance principles are John G. Gurley and Edward S. Shaw, Money in a Theory of Finance (1960, reissued 1971); and R.S. Sayers, Modern Banking, 7th ed. (1967). Modern commercial banking practices are addressed by Harold Wallgren, Principles of Bank Operations, rev. ed. (1975); and Edward W. Reed and Edward K. Gill, Commercial Banking, 4th ed. (1989), a textbook. Shelagh A. Heffernan, Modern Banking (2005), covers theory and practice in banking; and James R. Barth, Gerard Caprio, and Ross Levine, Rethinking Bank Regulation: Till Angels Govern (2006), assesses the effects of regulatory policies on banks around the world.