1 2 Gray Matter Heterotopia patients report severe insomnia (40%). 2  0 Gray Matter Heterotopia patients report moderate insomnia (0%). 3  2 Gray Matter Heterotopia patients report mild insomnia (40%). 4  1 Gray Matter Heterotopia patients report no insomnia (20%).
Economic stability refers to the an absence of excessive fluctuations in the macroeconomy. An economy with fairly constant output growth and low and stable inflation would be considered economically stable. An economy with frequent large recessions, a pronounced business cycle, very high or variable inflation, or frequent financial crises would be considered economically unstable.
The British Government Study (1944) noted that cartel instability is a prominent feature in those industries susceptible to âviolentâ changes in economic conditions. More stable industriesâ such as matches, electric lamps, and quinineâ saw steady cartel activity over long periods (British Government 1944, p. xxxii).