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Tutor profile: John M.

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John M.
Economics and History Major, Candidate for Masters in Economics
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Questions

Subject: US History

TutorMe
Question:

Explain how the US became the leading world power by the mid 20th century

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John M.
Answer:

Firstly, the US sheer size by the end of the 19th century provided it with plenty of raw materials that could be used in the emerging world economy. By this time, the US had also been expanding its overseas empire in the Caribbean and the Pacific where even more raw materials could be accessed cheaply and efficiently. Then by 1914, the rise of nationalism in Europe in combination with a complex system of alliances led Europe into World War One. While the US would eventually join this war, it was the European nations who experienced the largest death tolls and biggest hits economically, This gave the US the opportunity to surpass European superpowers like France, Britain, and Germany. However, the flawed Treaty of Versailles combined with a resurgence of centuries-old anti-semitism, a global recession, and a rise German nationalism led to the outbreak of World War Two, which again brought Europe into war. When the US finally decided to join the fight, the new jobs created by the war effort began to help bring the US out of the decade long Great Depression. After the allied victory, many of the soldiers who came back were eligible for a college education thanks to the GI bill. On top of this, Europes rebuilding effort was led by the US, and many US companies made millions with the Marshall plan. Essentially, it was the US's sheer amount of raw material and Europe's constant warring at the beginning of the 20th century that gave the US the opportunity to become the worlds leading power.

Subject: Economics

TutorMe
Question:

Explain why the Federal Reserve decided in August of 2020 decided to focus only on maintaining a longterm inflation rate of 2%.

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John M.
Answer:

There are a few possible reasons for the Fed changed their view on inflation. Firstly, the Phillips curve, which plots unemployment and inflation, has become extremely flat over the past decade. This means that there is no evidence over the previous decade that unemployment and inflation are inversely related as it was in the past. So, the fed may be updating it's policy with the most recently available data. Alternatively, the fed could be trying to increase expected inflation ( thereby increasing real inflation) by essentially bluffing about their new policy. The reason the fed would want to do this is to try and establish the inverse relationship between unemployment and inflation in the phillips curve. The fed has an interest in keeping the two variables correlated because their open market operations only allow them to raise or lower the interest rate. If they change the interest rate to reduce/increase inflation to try and maintain a certain level of unemployment and output, but the phillips curve is essentially broken, then their open market operations mean nothing. By saying they are going to put inflation to the back of their focus the Fed may be hoping to increase inflation in a time of extremely low unemployment in order to restore the phillips curve.

Subject: Algebra

TutorMe
Question:

Put y in its simplest terms then find the zeroes of the equation. (y/(3x-5)) = (4x^2+28x-15)/(6x^2+35x-75)

Inactive
John M.
Answer:

Before we multiply both sides by (3x-5) to isolate y, Let's do a prime factorization of both the numerator and denominator on the right side of the equation: 4*1 15*1 2*2. 5*3 Because our c value 15 is negative, we must look for a combination of these values such that the difference equals our b value, 28 We see that (2*15)-(2*1) equals our b value 28. So we can rewrite the numerator as (2x+15)(2x-1), Repeat these steps for the denominator 6*1 75*1 3*2 25*3 15*5 Again our c value, is negative so we look for values from our prime factorization whose difference is our b value 35. We find (3*15)-(2*5)=35 So we can write the denominator as (3x-5)(2x+15) Lets check back on the whole equation with this new information (y/(3x-5)) = ( (2x+15)(2x-1) ) / ( (3x-5)(2x+15) ) We can simplify this further because the 2x+15 factors cancel out leaving us with (y/(3x-5)) = (2x-1) / (3x-5) Multiply both sides by (3x-5) to get y in it's simplest terms. y=2x-1 To fin the zeros simply substitute 0 for y and isolate x 0=2x-1 1=2x We get the final answer. 1/2=x

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