Researchers reconstructed how systematic Cold War espionage powered East Germany’s economy by analyzing more than 180,000 scientific and technical files collected from Western countries between 1970 and 1989, many obtained by Stasi informants. The dataset recorded delivery dates, informant IDs, usefulness ratings and recipient East German firms, allowing economists to quantify returns. By 1988, stolen trade secrets were boosting national output by about 7.5 percent and lifted manufacturing value by over 22 percent - roughly $4.6 billion in 2020 dollars. Empirically, a one percent increase in technical advances acquired through espionage translated into nearly a one percent rise in firm value and labor productivity; each additional valuable piece of information returned about €330,000 annually (≈1.64 million East German marks in 2020 prices).
The analysis shows espionage gave East German firms short-term competitive and productivity gains and helped some survive the shift to a market economy after reunification, but it did not meaningfully improve access to Western markets. Authors argue the findings underscore a broader point for contemporary policy: access to cutting-edge knowledge is economically powerful, while export controls and insularity may yield temporary benefits at the expense of longer-term competitiveness.
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