So, a 10% of GDP debt is the real cause for an economy to fail. Interesting, we live in a matrix indeed
You need to consider the economic context.
The Soviet regime's preference for scarcity over inflation has its roots in the hyperinflationary history of the Soviet economy. By the mid-20th century, Soviet planners were well aware of the dangers of hyperinflation. With the end of the Tsarist regime and the conclusion of World War I, the new socialist regime took control of a country that was already bankrupt and highly dysfunctional. Hyperinflation soon followed. The Bolsheviks attempted to abolish money altogether, but this naturally failed, and a series of monetary reforms followed. By the late 1920s, however, the regime was engaging in widespread price control efforts, including the highly unusual tactic of rationing in peacetime. This limited price inflation for many goods and set the stage for the "suppressed inflation" that would become a pillar of the Soviet system for decades. Prices, however, began to rise rapidly in many areas, and World War II brought a new wave of price inflation, and prices soared. This was followed by another monetary reform—namely, the devaluation—of the Soviet ruble in 1947. Price control efforts were redoubled, and overall prices actually fell during the 1950s.
For much of the 1950s and early 1960s, the regime was perpetually concerned about price inflation. Indeed, Soviet ideology stipulated that inflation did not actually exist in the USSR. As Vasily Garbuzov, the Soviet Finance Minister, stated in 1960:
In the Soviet Union there is not and cannot be inflation; the possibility of inflation is completely excluded by the very system of the socialist planned economy. In our country, both wholesale and retail prices are set by the government, and thus the purchasing power of the ruble is deliberately controlled... The stability of the Soviet currency is guaranteed by the currency monopoly and the foreign trade monopoly, which is one of the most important advantages of the socialist economic system.
This is propaganda, of course, but in a sense, Garbuzov was right. A socialist state could indeed moderate the effects of monetary inflation on prices by reducing living standards and consumer choices whenever prices appeared to be rising.
This was necessary because the money supply continually expanded as wages rose. In their 1985 study of the Soviet economy, Igor Birman and Roger Clarke wrote:
The reason for the excess money supply is that the state has consistently "overpaid" the population in the form of wages, pensions, benefits, etc., which exceed the production (plus net imports and minus net exports) of consumer goods at prevailing retail prices (set by the state). While there has indeed been a steady increase in retail prices (despite the stability of the official index), this has been far too insufficient to equalize the population's real effective demand with the available supply of goods. In other words, the state generates excessive purchasing power in the hands of the population.
In an unencumbered economy, wages are closely tied to worker productivity, so wages would not rise disproportionately to the quantity of goods and services available in the economy. In a socialist economy, however, the price of labor—that is, wages—was arbitrarily set like all other prices. Wages under socialism are also paid by the public treasury and can be raised at the regime's convenience. This often meant wage increases because higher wages were politically popular. Rising wages potentially created the impression of prosperity, even when the economy was not actually more productive. Furthermore, as Birman and Clarke note:
During the last two decades [i.e., from 1965 to 1985], the country pursued the “confidence trick” policy of trying to stimulate productivity through higher money wages, without increasing the supply of consumer goods nearly enough to translate the increase in money wages into higher real incomes.
Increasingly, after 1965, the Soviet money supply became disproportionate to the economy's productive capacity. In a relatively free economy, this would quickly lead to price inflation, but the Soviet regime had ways to shift the economic burden elsewhere.
Thus, prices were kept under control not through fiscal discipline but through price controls. This led to shortages because, if wages rose while product prices did not, demand quickly outstripped supply. Soviet citizens often found they had very little to spend their money on, resulting in the long lines and empty shelves we associate with the Soviet economy today.
Through this mechanism, the regime could continue to inject new money into the economy, but also prevent ordinary people from spending "too much" money and thus raising consumer prices. The downside, of course, was that living standards fell considerably, as historian Steven Efremov
:
The price control system had deleterious effects on both Soviet consumers and the economy as a whole... Shortages of most foods led to inferior diets, and many consumer products routinely available in the West, such as telephones, cars, and modern washing machines, were surprisingly rare in the Soviet Union. Living conditions were less comfortable in many respects, with less living space per person, no central heating, no air conditioning, and often no sewer or hot water connections.
The result was essentially forced savings. Efremov continues:
When consumers couldn't find anything they wanted to buy, many chose to save a portion of their income each year. This effect was cumulative over time, as unmet demand from one year was carried over to the next, and the population's savings continued to grow.
In some respects, this was beneficial for the regime, as these unspendable savings could also be used to purchase government debt. But this accumulated money—known as the "monetary surplus"—increased much faster than the production of goods and services, and Efremov concludes that "the money supply had grown far more than was necessary for regular circulation." This would come back to haunt the regime when the economy began to open up and consumers were finally able to spend their money, causing prices to soar.
An additional method of reducing official inflation figures was subsidizing consumer goods. Retail price subsidies were introduced in the Soviet Union in 1965 as part of a major package of economic reforms. Soviet authorities then began implementing price subsidies on "basic foodstuffs such as meat, milk, bread, sausages, sugar, and butter." The goal was to keep prices stable. These subsidies survived subsequent economic reform efforts and became an increasingly large part of the economy in the early 1980s, with government spending increasing rapidly to put downward pressure on prices through subsidies.
None of this actually helped Soviet living standards.
To counter the effects of monetary expansion and falling living standards, the Soviet regime relentlessly tried to increase production to reduce the gap between monetary growth and productivity growth. However, due to the impossibility of economic calculation under socialism, Soviet central planning failed to coordinate goods and capital efficiently, and worker productivity stagnated.
Another result was an even greater decline in government revenue collection. Although taxes were levied and some revenue could be raised from imports, government monopolies—that is, state-owned enterprises—that controlled a variety of goods and services produced much of the income on which the regime depended. These enterprises could theoretically increase their revenues by increasing production, but production often stagnated as wages—that is, production costs—rose.
Government budgets, therefore, increased in tandem with falling revenues. Byung-Yeon Kim notes, for example, that "retail price subsidies…increased from 4 percent of government budget expenditures in 1965 to 20 percent in the late 1980s."
However, the availability of consumer goods certainly did not keep pace. Instead, consumers had few places to spend their money, and "the share of forced savings in total monetary savings increased from 9 percent in 1965 to 42 percent in 1989."