Saturday, April 11, 2020

Ballistics Essays

Ballistics Essays Ballistics Essay Ballistics Essay Paper Ballistics Bullets traveling over two thousand feet per second and having more energy than one normal person can perceive. Can you imagine tracking where, how, when, and what from angle this bullet was shot. Ballistic scientists can. Ballistics is the study of any projectile used as a weapon. This can certainly make or break a case Involving a guru Great ballistic scientists can even provide how far the bullet was shot from before It makes contact with the target. To me this is one of the most Important tools in a case where a firearm is used. The definition of ballistics is very simple, the study of projectiles from a weapon, mainly referring to bullets out of a gun. That Is a dulled down definition. My definition is a little lengthier in depth. Forensic ballistics includes the examination of bullets and firearms in an attempt to identify particular weapons used at any particular time. Guns and bullets leave small signs behind when fired, which professional ballistic scientists can pick apart and define what gun, bullet, energy, and even charge of the casing. This makes ballistic scientist one of the most important keys on a law enforcement agency. Pistols and rifles are categorized by what the inside diameter of the barrel measures. This is called caliber. An example would be, a 22 caliber rifle has a much smaller diameter barrel than a . 370 caliber rifle does. In turn, the bullet of a . 22 caliber is going to be considerably smaller than that off . 370 caliber, Pistols are categorized the same way. A . 40 caliber is much smaller than a . 460 caliber. Shotguns, however, are not categorized Like this. Shotguns are categorized by gauge. Unlike the rifle, the smaller the gauge of a rifle the bigger the inside diameter is. Such as, a twelve gauge has a much larger barrel than a twenty-eight gauge. Now that I have explained sizes and categorization to the guns, next Is the operation of the guns. When a gun is fired it takes many parts to make the gun fire and also for the bullet to hit Its target. When you pull the trigger on a gun, the firing pin strikes the bullet to set tot the gunpowder. That leaves a mark on the casing as unique as a fingerprintno two guns strike the bullet in exactly the same way. Furthermore, the barrels of every gun are rifled, which means they contain grooves, wanly Nell ten Dulled spun Ana make It more accurate. In turn, ten Dulled NAS ten marks from the rifling in the barrel, which can be matched up to the weapon that fired it. There is one exception to the rifling in the barrel. That exception is smooth bore shot guns. They are smooth, Just like the name implies. Now to talk about the term most people deem as ballistics, the speed, drop, and energy off bullet. Charge, weight, and muzzle length are three things that affect the speed and drop off bullet. Something most people don?wet know is that a bullet does not shoot straight horizontally. When I bullet is shot it is shot at a raising angle. Which means the bullet breaks the plane of the muzzle once before hitting the target. A . 22 caliber rifle breaks the plane of the muzzle at twenty-five yards, if the rifle is zeroed at 100 yards. Not all rifles cartridges cross at these measurements. That all depends on the weight, charge, and velocity of the bullet. Weight can also be described as knock-down power. A high caliber rifle will shoot heavier bullets and have more knock-down power. The more weight means that there is more kinetic energy. For example, a . 357 caliber rifle shoots a lighter, much faster bullet than that off . 5 caliber. Although the . 57 is faster and more flat shooting, the . 45 caliber has more knock-down power because of the weight of the bullet and the kinetic energy. Although this information is more helpful too hunter, it is useful to any shooter. Charge is described as the amount of black-powder used to fire the bullet. The more the charge, the bigger the bang. Every gun uses black-powder to be fir ed. Black-powder was the first explosive, and used in every gun in the history of fire- arms. From the oldest muskmelons to the most high tech sniper rifles used today. Now that the velocity of the gun is covered, next will be to explain what happens o the bullet once it hits the target. There are many different types of bullets. Such as soft tip, hollow point, and wad cutters. There are also a few types of hollow points. Hollow points are bullets that expand, (or mushroom) once they have impacted the target. These are most common and also the most harmful. Not only do you have a bullet traveling at over 1 500 feet per second, but they also expand and leave gaping entry and exit wounds, and can also leave trace amounts of the bullet inside the target. One type of hollow point is a slow expanding bullet. It works exactly like it is babbled, it is a harder bullet that still expands, but may not fully expand until it is very far into the target. These do a lot of damage, but not as bad as a fast expanding bullet. Fast expanding bullets expand as soon as contact is made with the target and is the most lethal type of bullet. Because they open so quickly you get the mushroom effect completely through the target. Wad cutters are nothing more than a solid piece of lead. They are mainly used for target practice because they are very cheap and do not have the charge nor the velocity of a hunting load. Although they arena t as powerful they are Just as harmful. Since they do not expand they stay a solid completely through the target and also after if there is an exit wound. These are Just as deadly because they can ricochet inside off target such as a human. Wad cutters are used in a lot of gang fights because they will not kill someone, but they will penetrate the skin and once inside the person they will ricochet off of the ribs and sternum, doing much internal damage. On each and every gun manufactured, there is a serial number stamped into it. It Is made Day pressing ten metal so even Day Telling Tontine serial under Trot ten inside, the scientist can still use ultra-sound to find out the serial number. Filing off serial number is a crime in itself and is very common in gangs, drugs, and acts of violence. By acquiring this serial number ballistic scientists can find out the caliber, make, model, store it was sold from, and even the owner. This is a huge factor in ballistic science. If you can place a gun with an owner/operator, as a ballistic scientist you have won half the battle of solving the crime. Ballistic scientists not only work with the operation of the gun, but also the distance and angle the bullet was shot from. For instance, the entry hole on a target well be much smaller than the exit hole because of the expansion of the bullet and the velocity that it exited at. In this case if you can determine and entry and exit wound you can tell what angle the bullet was shot from and determine the vicinity that the shooter was when the bullet was fired from the firearm. Distance is a huge key to figuring out what happened at a crime scene. A bullet fired from point-blank range out to a very close range will leave a black-powder burn on the target. A shot a point-blank range will have a tighter more distinct burn than en of a shot from a further distance. Another determining key to distance is penetration. If a bullet has not completely passed through a victim it could have been fired from a farther distance than what the proprieties of the scene allow. Some of the tests and examinations of ballistics include a few different types of test shooting. The ballistic scientist will test shoot the gun to find out its markings and striations on certain types of bullets to try and match a bullet with a gun and even a gun with an owner. That type of test can obviously only be done if either remains of the bullet or the gun is found. If neither the gun nor bullet is found at the scene the scientist can shoot different types of guns into what is called ballistic gel. This gel is comparable to the skin, muscle, and fat off human. It is a clear gel so you can compare the wound channel of the victim to that of the gel. This is also helpful with studying expansion of a bullet considering the gel is clear. Collecting evidence from a crime scene is very important. You do not want to hurt any evidence that could hinder the case. When collecting evidence such as a gun, never place a pencil inside of the barrel or trigger guard. Not only is that not proper rearm safety it is also harmful to any evidence that is located there. The firearms can be picked up by the textured part of the grip, while of course wearing rubber gloves to leave no extra fingerprints behind. Before picking up the firearm, make sure it is pointing in a safe direction. Most criminals do not unload the firearm before they drop it at a crime scene. Keep notes on the condition of the gun, the location, and time it was found. These call all be key factors in telling when, where, why, and how the victim was shot. If the barrel is damaged in any way, it will affect the outcome of test shooting. The same goes for the firing mechanism. The firearm should be contained in either a large envelope or a paper bag. It should be kept separate from the bullets, casing, or magazine. Putting all of these pieces of evidence in one container can lead to scratching and damaging any piece of evidence. As for collecting the bullet or casing from a scene, you must be very careful and collect it right or it will be no good as evidence. Since casings and bullets are metal, IT tenure Is any metal on metal contact ten specimen can De rule Ana scratches. This is why you would want to collect the evidence by hand with gloves on. Also one thing that most criminals don?wet think about is when you are loading your weapon you are leaving your fingerprints on the casings as you load them into the magazine. This is why casing are very important to any case. You would not want to use metal tweezers. If the bullet is scratched it could lead to false reading in test shooting or examination. Bullets and casings should be placed in a separate small cardboard box or a small envelope at the least. When collecting a magazine you should take the same precautions as you do with the gun, bullets, and casings. The magazine can be a very important part of the rime scene. Let?was possible that the magazine that was left behind could still have cartridges in them that have not been fired. If so that could narrow down the search for the caliber of gun and also the type of ammunition that was shot. Also with finding the magazine you can examine it for fingerprints from when the magazine was loaded and unloaded. With finding such things as the magazine, bullets, and casing you can determine many things such as, position, distance, caliber, gun, and even an escape route if the magazine was dropped. When I had first chosen the topic ballistics I thought I would be more focused on he science part of ballistics. But once I researched and put some of my own knowledge to work I realized that I was more interested in the way guns work and the way bullets travel. Although I don?wet see myself as the laboratory type, if I could only work on firearms cases it would not be that bad of a Job. I know as a student I learned very much in my research of bullets, guns, and ballistics. ?catheter are hundreds of millions of gun owners in this country, and not one of them will have an accident today. The only misuse of guns comes in environments where there are drugs, alcohol, bad parents, and undisciplined children.

Tuesday, March 10, 2020

Casting and Data Type Conversions in VB.NET

Casting and Data Type Conversions in VB.NET Casting is the process of converting one data type to another, for example, from an Integer type to a String type. Some operations in VB.NET require specific data types to work. Casting creates the type you need. The first article in this two-part series, Casting and Data Type Conversions in VB.NET, introduces casting. This article describes the three operators you can use to cast in VB.NET - DirectCast, CType and TryCast - and compares their performance. Performance is one of the big differences between the three casting operators according to Microsoft and other articles. For example, Microsoft is usually careful to warn that, DirectCast ... can provide somewhat better performance than CType when converting to and from data type Object. (Emphasis added.) I decided to write some code to check. But first a word of caution. Dan Appleman, one of the founders of the technical book publisher Apress and a reliable technical guru, once told me that benchmarking performance is much harder to do correctly than most people realize. There are factors like machine performance, other processes that might be running in parallel, optimization like memory caching or compiler optimization, and errors in your assumptions about what the code is actually doing. In these benchmarks, I have tried to eliminate apples and oranges comparison errors and all tests have been run with the release build. But there still might be errors in these results. If you notice any, please let me know. The three casting operators are: DirectCastCTypeTryCast In practical fact, you will usually find that the requirements of your application will determine which operator you use. DirectCast and TryCast have very narrow requirements. When you use DirectCast, the type must already be known. Although the code ... theString DirectCast(theObject, String) ... will compile successfully if theObject isnt a string already, then the code will throw a runtime exception. TryCast is even more restrictive because it wont work at all on value types such as Integer. (String is a reference type. For more on value types and reference types, see the first article in this series.) This code ... theInteger TryCast(theObject, Integer) ... wont even compile. TryCast is useful when youre not sure what type of object youre working with. Rather than throwing an error like DirectCast, TryCast just returns Nothing. The normal practice is to test for Nothing after executing TryCast. Only CType (and the other Convert operators like CInt and CBool) will convert types that dont have an inheritance relationship such as an Integer to a String: Dim theString As String 1 Dim theInteger As Integer theInteger CType(theString, Integer) This works because CType uses helper functions that arent part of the .NET CLR (Common Language Runtime) to perform these conversions. But remember that CType will also throw an exception if theString doesnt contain something that can be converted to an Integer. If theres a possibility that the string isnt an integer like this ... Dim theString As String George ... then no casting operator will work. Even TryCast wont work with Integer because its a value type. In a case like this, you would have to use validity checking, such as the TypeOf operator, to check your data before trying to cast it. Microsofts documentation for DirectCast specifically mentions casting with an Object type so thats what I used in my first performance test. Testing begins on the next page! DirectCast will usually use an Object type, so thats what I used in my first performance test. To include TryCast in the test, I also included an If block since nearly all programs that use TryCast will have one. In this case, however, it will never be executed. Heres the code that compares all three when casting an Object to a String: Dim theTime As New Stopwatch() Dim theString As String Dim theObject As Object An Object Dim theIterations As Integer CInt(Iterations.Text) * 1000000 DirectCast Test theTime.Start() For i 0 To theIterations theString DirectCast(theObject, String) Next theTime.Stop() DirectCastTime.Text theTime.ElapsedMilliseconds.ToString CType Test theTime.Restart() For i As Integer 0 To theIterations theString CType(theObject, String) Next theTime.Stop() CTypeTime.Text theTime.ElapsedMilliseconds.ToString TryCast Test theTime.Restart() For i As Integer 0 To theIterations theString TryCast(theObject, String) If theString Is Nothing Then MsgBox(This should never display) End If Next theTime.Stop() TryCastTime.Text theTime.ElapsedMilliseconds.ToString This initial test seems to show that Microsoft is right on target. Heres the result. (Experiments with larger and smaller numbers of iterations as well as repeated tests under different conditions didnt show any significant differences from this result.) Click Here to display the illustration DirectCast and TryCast were similar at 323 and 356 milliseconds, but CType took over three times as much time at 1018 milliseconds. When casting reference types like this, you pay for the flexibility of CType in performance. But does it always work this way? The Microsoft example in their page for DirectCast is mainly useful for telling you what wont work using DirectCast, not what will. Heres the Microsoft example: Dim q As Object 2.37 Dim i As Integer CType(q, Integer) The following conversion fails at run time Dim j As Integer DirectCast(q, Integer) Dim f As New System.Windows.Forms.Form Dim c As System.Windows.Forms.Control The following conversion succeeds. c DirectCast(f, System.Windows.Forms.Control) In other words, you cant use DirectCast (or TryCast, although they dont mention it here) to cast an Object type to an Integer type, but you can use DirectCast to cast a Form type to a Control type. Lets check the performance of Microsofts example of what will work with DirectCast. Using the same code template shown above, substitute ... c DirectCast(f, System.Windows.Forms.Control) ... into the code along with similar substitutions for CType and TryCast. The results are a little surprising. Click Here to display the illustration DirectCast was actually the slowest of the three choices at 145 milliseconds. CType is just a little quicker at 127 milliseconds but TryCast, including an If block, is the quickest at 77 milliseconds. I also tried writing my own objects: Class ParentClass ... End Class Class ChildClass Inherits ParentClass ... End Class I got similar results. It appears that if youre not casting an Object type, youre better off not using DirectCast.

Saturday, February 22, 2020

Capitalism at its best Essay Example | Topics and Well Written Essays - 500 words

Capitalism at its best - Essay Example Once the insurance policies are cashed in, they are set to be invested in by a third party. This party continues to pay the required insurance policy premiums for the policy that he/she invests in. In so doing, the original beneficiary of the insurance policy gets to utilize his/her resources before death come knocking. On the other hand, the viatical settlement company profits from such operations by getting a percentage face value of the policy transacted under viatical settlement. After the original insurance policy holder dies, the settlement company or the third party that invests in the cashed in policy becomes the beneficiary. From the cashing in of the insurance policy to the sale of that policy to a third party, all the transactions involved are privately undertaken. On the same note, viatical settlement companies are private entities that operate alongside other private players in the economy setting. As a result, viatical settlement companies exhibit private ownership of resources, and consequently capital in their operations. These factors are the most critical when it comes to the definition of capitalism. Capitalism continues to be portrayed at its best in respect to the risks that viatical settlement companies take in allowing terminally ill patients to cash in their insurance policies. Viatical settlement practices are highly complex and critically prone to ethical issues Accountability is a critical factor to account for in the process of undertaking viatical settlements. The legal system regulates and governs viatical settlement transactions, thereby allowing players in that market to coexist and engage in healthy competition. The competition factor in viatical settlements further presents the capitalism aspect. Viatical settlement companies are not immune to the legal provisions that streamline business operations. Failure to comply with the set laws results in legal actions against the

Thursday, February 6, 2020

The Function of Management Planning Essay Example | Topics and Well Written Essays - 1500 words

The Function of Management Planning - Essay Example Within this organization, the planning involved selecting enterprise goals and department objectives than finding ways of achieving them. Plans depended upon the existence of alternatives, and then decisions had to be made regarding what to do, how to do it, when to do it and by whom it is to be done. Author Anderson has a responsibility to meet society's expectations in three concentric circles of responsibility (Arthur Andersen, 2007). The inner circle includes the business's clear economic responsibilities such as quality and safety and the provision of jobs and services. The intermediate circle expands the responsibility of businesses to make their policies and practices consistent with societal values in such matters as fair employment practices and a benign environmental impact (Accounting Industry, n.d.). The nature of ethical standards is one of the key issues to be addressed by personnel managers operating in a large corporation. There will gradually be a growing together of national practice on working hours, but it will take a lot longer for rates of pay to harmonies. Arthur Anderson adopts CSR because some moral justification comes from a value system that is independent of the business itself and where individual opinion can be sharply divided. SCR implies that employees at work should be honest and that claims about a product or service should be accurate. Ethical issues are corporate behavior and fair competition. In order to meet these objectives, Arthur Anderson uses systematic planning. Fair competition is achieved by adoption of specific ethical rules which guides management and marketing policies. Risk and uncertainty are minimized by planning and this is needed more today than before as social and economic conditions alter very quickly and careful planning enables an organization to prepare for change. Planning helps Arthur Anderson to define its purposes and activities according to fair competition rules. It enables performance standards t o be set and results can, therefore, be compared with the standard to enable managers to see how the organization is proceeding towards its goals. Planning is flexible to deal with a changing environment. Corporate behavior means that employees follow established norms combining their own judgment with the benefits of the corporation. In this case, the ethical responsibility of Arthur Anderson is to analyze social conditions and possible threats of their services for potential consumers. They should be well aware of the educational background of their customers and their expectations (Corporate Social Responsibility, 2007). Social responsibility translates into expectations that businesses comply with the spirit of society's laws and with the normative base that undergirds them. The social responsibility issues followed by Author Anderson are the attitude of management to labor and fair reward and use of shareholders capital. The attitude of management to labor is achieved through f air payment schemes and healthy corporate climate, training programs and promotion activities. Arthur Anderson provides additional training focusing on employee's motivation and work design programs to help worker identify their goal and professional development strategies.  

Tuesday, January 28, 2020

The Napoleonic Era Essay Example for Free

The Napoleonic Era Essay Napoleon’s impact has been so great that an entire historical time period bears his name, the Napoleonic Era. For over a decade, he was to be the master of Europe—but he was also a man. During the Triumvirate and Despotate in 1799 to 1804 CE and 1804 to 1815 CE, respectively, Napoleon made several errors (Rose, 2006). First of all, he suffered greatly due to an impediment at Eylau, Leipzig, Borodino, and the ultimately at Waterloo.   Napoleon’s decision not to establish a treaty with other players such as Austria (in a Paris-Vienna axis) in the balance of power was his first major setback. The treaty could have helped him maintain the power of Britain and simultaneously gain and improve his peripherals and palatinates within Italy. Not only will this improve his power over Italy but also to the Autarchy of Naples, Dutch-Belgian demarcation, the Helvetian Republic and the Piedmont Kingdom. Another mistake that he committed was the two-front war. Napoleon wages war over Russia and Iberian promontory in the year 1807 up to 1814 CE. He even made an error regarding the unity among his troops, which was divided when he appointed four different marshals having different military and social backgrounds. Napoleon also misjudged military activities by the sea, which resulted to a weak line of defense, or no defense at all, from the Mediterranean up to the Atlantic (Coakley, 1992). Second, with regards to economic warfare, Napoleon’s Berlin Blockade, then modified to Continental Blockade, ultimately produced negative effects or results for France, exciting dissidence and unrest. In the east, he failed with a tripartite incursion of the Swedish throne. He also failed with the Ottoman Empire’s symmachia that was directed to Russia. As a result, the attention of Russia was brought upon Napoleon’s intentions, putting him near the edge of winning. Lastly, Napoleon miscalculated the size of the phalanxes at the Russian Campaign (Stocqueler, 1852). This eventually rendered him unable to gain victory over Russia. In the end, all of Napoleon’s mistakes are the fruit of his unwavering ego. References Coakley, T. P. (1992). Command and Control for War and Peace: Diane Publishing Company. Rose, J. H. (2006). The Revolutionary and Napoleonic Era, 1789-1815: Adamant Media Corporation. Stocqueler, J. H. (1852). The Life of Field Marshal the Duke of Wellington. New York: Ingram, Cooke and Co.

Monday, January 20, 2020

The Appalachian Trail :: essays research papers

When I was in the seventh grade, our class went on a field trip to Cherokee, North Carolina. The trip lasted four days and three nights, but the adventure would last a lifetime. The experience allowed me to learn many things about myself and to reflect on the beauty that was all around me. We departed at six-thirty in the morning, and I was so excited. I had never been away on a school trip for longer than a few hours. I tossed my purple duffel bag into the storage compartment, found my seat by the window, and prepared for what I knew would surely be an unforgettable adventure. When we finally arrived in the mountains, it was breathtaking. They were covered with trees, and the clouds floating over them were so beautiful. I looked down and saw valleys of flowers that went on forever. I was so anxious to get off the bus and roll in the grass with the clear, blue sky above my head. The bus came to a halt, and one by one we filed out into a parking lot. We grabbed our canteens and began the one-mile trail to the top of one of the mountains. I was one of the first people to reach the peak, and waiting for us was a notebook. We opened it to find the names of everyone who has ever reached the peak. I smiled to myself as I wrote in big letters â€Å"Kim Walton† and started back down the mountain. It was much easier and faster than going up, and everyone was really excited to see where we were going next. When we arrived at the Best Western, everyone grabbed his/her suitcases, quickly tucking them into the rooms as the candy shop across the street drew us in like moths to a flame. Afterwards, we went back to our rooms, put on our bathing suits, and went for a late-night swim under the stars. It was so cold, but we did not mind it because we were having so much fun. Later we went back to our rooms and went to sleep. Our next day would surely be packed with action and adventure. The next morning, we went to Alpine Tower: a seventy-five feet high vertical structure that is designed to help you work with others and test your physical strength as well as your bravery, motivation, and problem-solving strategies. Equipped with helmets, harnesses, and ropes, we took our places around the tower and prepared for the first person to go up. The Appalachian Trail :: essays research papers When I was in the seventh grade, our class went on a field trip to Cherokee, North Carolina. The trip lasted four days and three nights, but the adventure would last a lifetime. The experience allowed me to learn many things about myself and to reflect on the beauty that was all around me. We departed at six-thirty in the morning, and I was so excited. I had never been away on a school trip for longer than a few hours. I tossed my purple duffel bag into the storage compartment, found my seat by the window, and prepared for what I knew would surely be an unforgettable adventure. When we finally arrived in the mountains, it was breathtaking. They were covered with trees, and the clouds floating over them were so beautiful. I looked down and saw valleys of flowers that went on forever. I was so anxious to get off the bus and roll in the grass with the clear, blue sky above my head. The bus came to a halt, and one by one we filed out into a parking lot. We grabbed our canteens and began the one-mile trail to the top of one of the mountains. I was one of the first people to reach the peak, and waiting for us was a notebook. We opened it to find the names of everyone who has ever reached the peak. I smiled to myself as I wrote in big letters â€Å"Kim Walton† and started back down the mountain. It was much easier and faster than going up, and everyone was really excited to see where we were going next. When we arrived at the Best Western, everyone grabbed his/her suitcases, quickly tucking them into the rooms as the candy shop across the street drew us in like moths to a flame. Afterwards, we went back to our rooms, put on our bathing suits, and went for a late-night swim under the stars. It was so cold, but we did not mind it because we were having so much fun. Later we went back to our rooms and went to sleep. Our next day would surely be packed with action and adventure. The next morning, we went to Alpine Tower: a seventy-five feet high vertical structure that is designed to help you work with others and test your physical strength as well as your bravery, motivation, and problem-solving strategies. Equipped with helmets, harnesses, and ropes, we took our places around the tower and prepared for the first person to go up.

Sunday, January 12, 2020

Economic questions Essay

1. It has to do with game theory. In the prisoner’s dilemma, two suspects are taken by the police and each told separately that they can gain their freedom by testifying against each other. If neither testifies, they each will serve a six months sentence. If one testifies the other stays silent, the one will go free and the other will serve 10 yrs. If both testify then both will serve 5 yrs. The best thing is for both to be silent, but the more likely scenario is that each, fearful of a long sentence, bails on the other and nobody wins. In economics it is the investors hoping to ride the high flyers into the New Year; the best outcome is for nobody to sell. Most years, that is how it works and year end rallies leave everyone satisfied. 2. Economic theory. Through regulation is the best way market failure or externalities are dealt with when they are harmful to society. Externality is an economic side effect. They are the costs or benefits that come from economic activities that affect others than the individuals that re engaged in the economic activities. Some solutions are negative- taxes, positive-subsidy. 3. Sources of income in a capitalist economy would be their property rights that entitle them to earn a profit for the use of their capital as risk in some form of economic activity. They would be related through labor by human capital. The knowledge and skill acquired by labor through education and labor. 4. The rate is determined by a percentage of its turnover or sales. 5. Investment is something investors decide how much they will spend on new investment. Example: Producers have to decide whether to replace used up or obsolete machinery, whether to expand production these costs will become an investment that in turn should make them money. There are four principal determinants of autonomous investment, the level of technology, rate of interest, expectation of future economic growth and the rate of capacity utilization. 6. With an equilibrium price. The price that equates quantity demanded to quality supplied. If any disturbance from that price occurs, excess demand or excess supply emerges to drive price back to equilibrium. 7. The classical view of how our economy behaves is this: If the economy were left on its own without the interference of government or the Fed. It would move towards an equilibrium rate of growth that would produce with only minor interruptions, full employment without inflation. This hands off rests upon two simple propositions about market, one that all markets are basically competitive and two, all prices are flexible upward and downward approaching equilibrium. Unemployment is only a temporary condition caused by wage rates climbing above the equilibrium rate. A shift in the extraction curves is the economy’s rate of unemployment and rate of inflation. 8. Supply-side economists emphasize the importance of reducing tax rates. They accept the Keynesian idea that lower tax rates will increase consumer demand, but they believe a more important consequence is the added incentive it provides suppliers. For example; lower corporate tax rates increase after tax profit, which induces suppliers to increase aggregate supply. Lower income tax rates encourage more people to work longer, adding as well to aggregate supply. 9. Savings automatically converts to investment; so that investment induced growth is dependent on saving. 10. The division of labor into specialized activities that allow individuals to be more productive. The idea that labor productivity is a function of the degree of labor specialization. 11. Upward sloping trend cutting through the cycle traces the economy’s output performance over the course of a business cycle, measured either from recession to recession or from prosperity to prosperity. The upward sloping character of the trend line signifies economic growth. 12. Every economy, whatever its level of national income, includes people earning different incomes. Knowing someone’s absolute income tells us little about that person’s income status. 13. Consumption spending is rooted in Status. High income people not only consume more goods and services than others, but also set consumption standards for everyone else. 14. Aggregate supply is the total supply of goods and services that all firms in the national economy are willing to offer at varying price levels. Aggregate demand is the total quantity demanded of these goods and services by households, firms, foreigners, and government at those varying price levels. Macroequilibrium is reach when aggregate supply equals aggregate demand. 15. Consumption spending has tended to be more stable than investment spending in the past. MPC can be counted on to remain pretty much unchanged. Autonomous consumption is hardly likely to change. Investment spending is considered volatile. Economists identify changes in aggregate expenditure as the key to understanding why national income changes. Changes in investment have highly magnified effects on national income. The income by which income changes as a result of a change in aggregate expenditure is called income multiplier. 16. The economy’s output or gross domestic product is the total value, measured in current market prices, of all final goods and services produced in the economy during a given year. 17. One solution is to combine wage and price controls with a Keynesian style job creating policy. Stabilization policy is one option. 18. Four principle factors contributing to a nations economic growth, the size of the labor force, the degree of labor specialization, or the division of labor, the size of its capital stock and the level of its technology. Savings automatically converts to investment; so that investment induced growth is dependent on savings. 19. Demand deposits are only half of a banks business. Loans are the other. The bank makes a profit only on the loans it provides, not on it deposits. Borrowers benefit from inflation where lenders, where as lenders lose money. 20. Through the circular flow model, how the economy’s resources, money, goods and services flow between households and firms through resource and product market. 21. Economies with negative balances on current account will find their exchange rate falling. And unless these rates are propped up by government intervention, they will fall to stem the currency outflows exist; the exchange rate will keep falling. Eventually the rate will reach the level appropriate to a zero balance on current account. It takes only time. He would think we were habitual borrows. 22. They are the â€Å"what is† and â€Å"what it should be† 23. Nothing because the infrastructure is what an economy’s ability for development depends upon. Such as with education to educate people involves not only the task of acquiring compliance but the funds needed to build the school and staff them.