The long$-$run Phillips curve

This graph shows the long$-$run Phillips curve $($LRPC$)$ and several of the short$-$run Phillips curves $($PC$)$ for an economy.

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Assume that the economy is initially at point E $,$ with an expected and actual rate of inflation of $6\%$ and anemployment rate of $5\%.$

Which of the following events could lead the economy to move to point H in the short run?

Net exports increase.

Consumption spending rises.

The government increases spending.

The Fed raises interest rates.

Which of the following statements would best explain a move from point $H$ to point $G?$

The government pursues an expansionary fiscal policy.

Nominal wages are renegotiated at the higher inflation rate of $9\%,$ leading to an increase in unemployment.

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The government pursues a contractionary monetary policy.

Nominal wages are renegotiated at the lower inflation rate of $3\%,$ leading to an increase in employment.

Which of the following statements is correct?

The long$-$run Phillips curve shows the positive relationship between unemployment and inflation in the long run.

The long$-$run unemployment rate is $3\%.$

The long$-$run Phillips curve illustrates the temporary tradeoff between unemployment and inflation.

In the long run, changes in the inflation rate have no effect on unemployment.