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After locating twins who were cancer patients in England and Wales between 1971 and 1989 , they determined how often both siblings of a pair developed the same cancer . Another example is the reduction in the supply of money in the years 1988 and 1989 , when the banks ' demand for sight deposits fell markedly due to the changed liquidity requirements and the introduction of SIC ( Electronic system for interbank payments , Swiss Interbank Clearing ) . Between 1985 and 1989 , I worked in the Palazzo Civilt ` del Lavoro ( the unity of labour ! A more recent study by the Federal Reserve ( 1999 ) found that the expected yield on a bank 's subordinated debt also has explanatory power for the bank 's choice of whether to issue these debts or not , most prominently between 1988 and 1989 , when the banking industry was in distress and the required return for holding bank debt was high . The study also found a 3.7 percentage point drop in help with money management between 1984 and 1989 , when Social Security direct deposit became the norm , raising the question of whether IADL declines reflect improvements in health or improvements in the physical environment . This is particularly important to projects funded between 1982 and 1989 , when HUD introduced a series of cost-containment measures , including a requirement that one-fourth of the units be efficiency units . Between 1985 and 1989 , I saw this device at least five times . During 1988 and 1989 , I was part of a team which received a two-year grant for curriculum development , research and professional outreach . Between 1971 and 1989 , they achieved something approaching a strategic partnership . The only other example of an overinvestment cycle during the twentieth cen-tury was the Japanese expansion between 1983 and 1989 , when overinvestment , and a sharp runup in stock prices , eventually resulted in a collapse of the Japanese stock market in early 1990 . This sentiment reflected a concern that the Fed might overdo it — as it has often done in the past — though , if the Fed were close to having overdone it at this point , this would be at the least restrictive policy stance at which we could ever identify a previous over-tightening ( e.g ., the current real fed funds rate versus core PCE inflation is near 2 1/2 % , while at the end of the last three tightening cycles ending in 2000 , 1994 and 1989 , it was around 4 3/4 % , 3 3/4 % , and 5 % , respectively ) . Between 1987 and 1989 , she worked in Swaziland as the Senior Development Communication Specialist in rural development , agriculture , family planning , and human resource development . In 1988 and 1989 , I spent several months setting up a new operation in Miami , as Dog Two began scheduled flights there . Between 1985 and 1989 , it exported nearly $ 7 billion worth of arms , far surpassing its next nearest competitor , Brazil , which sold only $ 1.4 billion worth .