The implementation of Mikhail Gorbachev’s glasnost (political liberalization) and perestroika (economic restructuring) policies in the Soviet Union fueled sentiment in Germany that reunification could become a reality, and the basic steps toward German economic unity were accomplished with astonishing speed. The unexpected opening of the frontier between East and West Germany and the breaching of the Berlin Wall on November 9, 1989, were a heavy blow to the East German economy, as the relatively small numbers of migrants, who in previous years had left the country by way of Hungary or Czechoslovakia, rose dramatically. Exacerbating the problem was the fact that most of those who left were the younger, more active members of the population and those with marketable skills. The economic unification, achieved by July 1, 1990, swept away all customs barriers and introduced the deutsche mark as the sole currency in Germany.

Following Germany’s official reunification on October 3, 1990, the western German economy continued to grow rapidly until 1992, after which it began to experience an economic slowdown before growth resumed in the mid-1990s. During the decade following 1992, the German economy grew at an average annual rate of 1.4 percent—among the lowest rates in western Europe. Many economists attributed the slowdown to rigid labor policies, high taxes, marginal incentives for investment, and generous incentives for workers to retire, miss work, or be unemployed. The slowdown was also related to unification, which wholly revealed the economic deficiencies of East Germany—the extent of its technological backwardness, its low productivity, and the faltering state of its manufacturing plants. Disillusionment in eastern Germany rose sharply as manufacturing output and employment declined rapidly. The federal government’s insistence that eastern German firms compete immediately in the free market led to economic devastation in the east. By spring 1991, mass demonstrations against unemployment occurred regularly in Leipzig, and there was concern that economic despair would cultivate the rise of political extremism. Indeed, the Berlin office of the Treuhandanstalt (a government-owned but independent trust agency for the privatization of eastern German industry with wide powers of disposal) was firebombed, and in April 1991 its head was murdered by the West German Red Army Faction.

The Deutsche Bundesbank believed that the government had introduced the deutsche mark into eastern Germany too precipitately, with practically no preparation or possibility of adjustment, and at too favourable a rate. The effect of currency conversion and subsequent wage pressure deprived industry in the east of one of its few advantages, low labor costs. The favourable exchange rate and relatively high wages and salaries did, on the other hand, help achieve a sociopolitical goal—encouraging eastern Germans to remain in the east rather than migrating to the west, where people feared being overwhelmed by migrants. There were commercial bankruptcies in eastern Germany, and the eastern economy was further decimated by the tendency of easterners to buy the better-presented and technically superior consumer goods from western Germany or abroad rather than the generally drab products of eastern German industry; by the end of the decade, however, high-quality goods produced in eastern Germany bolstered the economy, and there was a wave of regional consciousness that favoured the patronage of local products.

Economic unification caused particularly severe hardships for eastern German workers; unemployment rose sharply and industrial output fell by two-thirds in the years after unification. Decline was greatest in the food-processing sector, metallurgy, building materials, machinery and vehicles, electronics and related equipment, and textiles. Eastern German agriculture also was devastated, with employment dropping by some three-fourths. Although the eastern economy later rebounded, at the beginning of the 21st century more than one-sixth of its labor force was unemployed—more than double the rate for western Germany. Unemployment also rose disproportionately for women. As a result of job losses, migration from east to west continued throughout the 1990s and into the early 21st century.

The slowness of economic recovery in eastern Germany was the result of a variety of factors. The haste of change, especially regarding the currency conversion and the breakup of the great industrial combines, and the fact that East Germany had no effective government for a period of three months following the economic union in July 1990 hampered economic reconstruction efforts. Even after political unification, progress was disappointing. Firms removed from ministerial control and transformed into limited companies found themselves unable to compete in the free market, burdened not only with outdated plants but with debt, because the East German government had appropriated their profits while requiring them to borrow their capital. The federal government had assumed that the reconstruction of eastern German industry would essentially come about by the takeover of plants by Western, predominantly western German, firms. In reality, however, the Treuhandanstalt set up to dispose of some 10,000 formerly nationalized firms made extremely slow progress, partly as a result of an excessively legalistic approach and partly because of the shortage of experienced administrators afflicting the reconstituted public service in the east. Western German firms were under no great financial pressure to move in, and, with the help of the additional labor available from eastern German migrants, they expanded production at their existing plants without having to become involved in the difficulties of actually setting up a branch in the east. Protesters warned that eastern Germany was turning into an internal colony; however, this overly pessimistic outlook was exaggerated, and about 1992 some economic revival began to occur.

Land ownership was a significant barrier to establishing plants in eastern Germany. Following the principles of the German constitution, after unification, former owners were assured that they could repossess their property or at least be compensated for their losses. However, this did not apply to property expropriated by the Soviet military administration (1945–47), including many large estates that not everybody would be happy to see returned to their original aristocratic owners. Where a plant had originally been owned by a family or firm in western Germany but had received additional investment from the East German government and had perhaps expanded over land originally in a number of hands, western German firms were deterred from moving in, there being a lack of clear title to ownership.

The production-focused East German communist system had ignored environmental considerations. Firms seeking to take over electrical generation based on brown coal, any part of the chemical industry, or any other plant where dangerous chemicals had been used in processing faced enormous costs in attempting to meet federal government standards. Firms were also discouraged from taking over plants, because the inevitable reductions in surplus labor would involve the payment of unemployment compensation. As a result, the few western German firms setting up in the east preferred to establish a completely new plant on a green-field site, allowing them to avoid these excessive costs.

The federal government initially believed that the costs of unification could be borne by borrowing and without increases in taxation. Despite these assurances by Chancellor Helmut Kohl at the 1990 all-German elections, by 1991 additional taxation was required. If people in the east were disillusioned by the economic results of union, those in the west grew increasingly resentful of the cost of paying for it.

During the 1990s Germany made a number of dramatic changes in its energy sector—e.g., higher taxes, lower subsidies for coal mining, and privatization of huge eastern German energy firms. In 2002 the government passed legislation that stipulated the end of the nuclear power industry by 2022, though in 2010 it extended the deadline into the 2030s. In 2007 it also tentatively planned to phase out coal mining within about a decade. Massive reconstruction projects in the east (Aufbau Ost), funded largely by higher taxes in the west, helped to improve infrastructure in the eastern regions. Telecommunications systems were upgraded, and there were generous subsidies to encourage capital investment.

Quite apart from the costs and problems associated with unification, Germany and its economy faced a number of interrelated problems at the beginning of the 21st century. High unemployment—which regularly exceeded four million people—became the chief political issue. Extremely high wages—among the world’s highest—generous social services, and high taxation also dampened the economy. Unification caused the public debt to grow dramatically, and at the beginning of the 21st century some one-fifth of the annual federal budget went toward interest payments on the accrued national debt.

Although unification was more than a decade old, at the beginning of the 21st century its effects still weighed heavily on the German economy and its political institutions. However, in large measure unification gave way to other issues, such as globalization, the introduction of the euro as the single currency of the EU in 2002, and the enlargement of the EU to central and eastern Europe. Germany’s domestic economic problems and opportunities are complexly bound up with global and regional processes over which it has only varying levels of influence and control—a somewhat unsettling situation for a society that became very prosperous by following accustomed patterns and having firm control of the major levers of its own economy.