Inflation Madness

There are lots of people writing about inflation now. I guess it is cool now that inflation is higher. 

I don't mean to be a macro snob but I think inflation is one of the hardest things to understand and to write about. 

It seems simple on the surface. You go to the store one day and an apple costs a dollar. You go the next day and it costs two dollars. You didn't get a raise in your salary so if you buy the inflated apple, you now have a dollar less to spend on JD and artichoke hearts. 

Simple. Now extend the apple example to a basket of goods and services people usually buy each month and you can do the same kind of comparison. If it costs more to buy that bundle of goods and services this month, then we say there was inflation. If the cost of those goods was to fall this month we could call that deflation. 

What else? While we know inflation means we can buy less for a given income, what happens if your income is changing too?  That's were it starts to get more interesting. That's where we start saying more about the impact of inflation. Suppose inflation is 5% this year and you got a 6% raise? Hmmm. That means you can buy more goods and services -- not less. 

So what do we have to consider to know the impact of inflation? We need to know all the sources of income --- wages, salaries, benefits, dividend income, interest income, gambling profits, housing appreciation....please stop me. Clearly this means several things.

First, it means that inflation will likely have different impacts on different people. Kiltie might be doing great because he is a great investor while Gibson is suffering because of the decline in his rentals of surf boards. 

Second, if we can somehow add together all the various income sources of all the people, then we can talk about the macro impact of inflation. If price change is greater than income change, then we can say we have a national impact of higher inflation. 

Third, it is important to think about temporary versus more permanent changes in the impact of inflation. Economic data jumps around each month. There is a lot of noise in most economic time series. Like your weight. It goes up some one day; down some another day. What matters most to your belt is the trend. Is it getting looser or getting tighter?

That may be the hardest thing when it comes to understanding the impact of inflation. Let's suppose prices in June go up a bunch. It might be a one month thing. Maybe it is caused by weather in June. So you see that the inflation rate in June was high -- maybe 10%. A reasonable thing is to ask how much inflation has gone up over the last year, ending in June. Despite taking a longer term perspective in June, that big increase might calculate to a large increase in inflation over the past year. Was it a one-month thing or was it a 12 months thing?

That's what happened this year. Inflation went up by 5.4% in June compared to the previous June. A one year increase of 5.4%. That was worrisome. But really, it was mostly all happening in a few months. So we have to wait and see.

I looked at CPI data since 2011. Yes, inflation from July 2020 to July 2021 was 5.4%. In the previous three years (2018 to 2020) inflation averaged about 1.8% over each year.  How do you get from 1.8% per year to 5.4%?

Mostly because you had Covid and that caused negative inflation from February 2020 to to June of 2020. Almost half a year where the CPI never got above its value in February of that year. It was not until February of 2021 that the CPI began rising again. It rose a bunch between February and July of 2021. 

What's the point? The point is that the rise of inflation to 5.4% is almost meaningless. It is covid induced and reflects prices falling and then rising. 

It is difficult to make any forecast of the future from this information. Its like steering your boat in a storm. You cannot make rational forecasts during a storm. Inflation has been tossed around in a storm. When the storm is clearly gone, then maybe we will have something to say.

When the storm clears, maybe the impacts of excessive money creation or government deficits will be more recognizable. Maybe all the experts should wait and give a chance for the clouds to clear.