Standard courses in economics talk about the law of demand and supply, where prices are determined to equate the two. Joseph Stiglitz: The 99 Percent Wakes Up Joseph E. Stiglitz May 1, 2012. Those ships he speaks of equate to jobs at shipyards, the planes to jobs at Boeing/Lockeed/etc.
An exercise stress test is designed to find out if one or more of the coronary arteries feeding the heart contain fatty deposits (plaques) that block a blood vessel 70% or more. Additional testing is often required to confirm the test result. Test result.
Stress test (or treadmill test or exercise ECG) records the ECG during exercise, usually on a treadmill or exercise bicycle. Heart disease and women: so you have heart disease While the treadmill test is only 70-90 percent accurate, it is better than a basic cardiogram because the patient's heart is active, or under stress.