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A child’s perspective on the exchange of value

Wednesday, January 19th, 2011

One night while we’re getting ready for bed, my child approached me with her sister in tow. “Dad, have we ever sold anything?” she asked.

It seemed to me like a good time for family discussion about economics or for that matter anything that wasn’t about website updates. I answered with a question. “What do you mean by ‘sell’?”

“You know. To give someone something and get money,” they answered.

I thought it was a good start so I asked, “Does what you sell have to be a thing like a glass of lemonade or could you sell something that you do like wash the car?”

They agreed that if you washed someone’s car and got money in return, then you did sell something but they weren’t quite sure what. I explained that things like cars and lemonade are considered goods and acts like washing the car or mowing the lawn are called services. And we all agreed that the only things that can be sold are in fact goods & services. [Ok, so there are things like wheat futures and options but …]

Next question. “Do you have to get money for the goods & services in order for it to be considered selling?”

“Yes,” she answered, “If you give away the goods and services, then that’s giving not selling.”

“Great point,” I replied. “Giving things away free doesn’t count as selling. But what if you received something other than money? If you got free ice cream for a week, then would that count as selling?”

They looked suspicious at first but ultimately agreed that it would still count as selling. I then continued by saying that selling is only half the picture. In order to actually sell, someone has to buy. But we already agreed the seller doesn’t have to get money for it to be a sale. Then I hit them with all the economic theory I acquired with one macroeconomics class. “So selling (and buying) are really just an exchange of value.”

“And yes,” I continued quickly before I bored them to sleep. “You have sold things before. Remember last fall when you collected the apples and sold them?”

“That’s right”, said my six-year-old. The idea of providing someone an apple for ten cents fits her idea of selling far better than my statements about exchanging value.

“OK. But what was the value that you provided?”

“The apples!” they exclaimed.

“Well, not exactly,” I replied. “Who did you sell them to?”

“Uncle Jerry.”

Uncle Jerry is our next door neighbor. Everyone in our neighborhood calls him Uncle Jerry.

“Where did you get the apples?”

“From the back yard.”

“Whose backyard?”

“Uncle Jerry’s, I guess,” offers my nine-year-old.

“So you just took Uncle Jerry’s apples?” I ask incredulously, although I knew this not to be the case.

“No Dad. Uncle Jerry said it was OK for us to take the apples.”

“Did you gather up all the apples?”

“No. There were lots more on the ground. We only gathered a few of them.”

“Ok. So, with Uncle Jerry’s permission, you gathered a few apples from his backyard and put them in a wagon. Next, you wheeled the apples around to Uncle Jerry’s front yard and asked him if he wanted to buy any apples for ten cents each. They were Uncle Jerry’s apples from the tree in his back yard. He knew where you got the apples and he knew that there were lots more apples under the tree. With all of that information what did Uncle Jerry do?”

“He bought the apples.”

“Not really,” I said. “The apples were already his. So what did he buy?”

“He wanted to make you guys happy,” my spouse chimes.

“Oh. I get it!” exclaims my nine-year-old.

But to be sure, I posed the following. “Each year I buy life insurance but the insurance company only has to pay if I die. What’s the value? It’s not the insurance payment since I have to be dead for the insurance company to pay.”

My older child’s brow knits momentarily and then she says, “I know. You want to take care of us if you die!”

My younger one thinks for a moment and confidently gives her own answer, “Life!”

And there you have it. Next year, I’m doubling my policy. You can’t have too much life!

Making Maple Syrup

Monday, August 11th, 2008

Late February through mid-March is sugaring season in Western Pennsylvania. I may live on the only one acre in the entire township that does not have a single maple tree. Instead, I tapped several trees near my parent’s house. I used plastic tubing and brass compression fittings. I think as much sap dripped onto the ground as into my gallon water cooler bottles.

During the entire season, I made about a gallon of syrup but turned approximately half of that into maple sugar candy. To make syrup from sap, you boil, and boil, and boil. The reduction is 40:1. Last year I made syrup on the kitchen stove in an aluminum foil turkey roasting pan. It was a bad idea — 39 gallons of water boiled into my house.

Nevertheless, I really enjoyed the process plus the whole family loved the results. So this year I tried to do a better job of planning. First order of business was to find an evaporator (fancy name for a pan) that would hold up and be the right size. Evaporation is a function of surface area so you want a shallow pan that is as big as possible. Practically speaking you can let the sap boil off until it’s about 1″ deep (1/2″ if you are very careful). After that, it can scorch quickly. If your pan requires 10 gallons of sap to cover the pan 1″ deep but you only process batches of 10 gallons, then you have a problem. I figured that I would collect during the week and boil on the weekend. Based on last year’s experience, I knew that I would have between 10 gallons and 30 gallons of sap on any given weekend.

I decided that a pan 6″ deep and 12″ X 24″ would be ideal. A gallon of liquid is 231 cubic inches and my pan would be 288 square inches which works out to 1.25 gallons per inch or 7.5 gallons completely full. My approach is to boil 80% to 90% of the way outside, then finish the syrup on the stove where I have much better control over the temperature. While searching for stainless steel sheet stock on eBay, I found a company that specializes in stainless steel fabrication of kitchens. They sell scrap pieces of stainless steel sheet and even noted that they would fabricate. I called them and they built my pan from 18 gauge 304 stainless steel for $110.

Now that I knew the dimensions of my pan, I could plan the firebox to place it upon. I didn’t want to just have an open flame as I figured too much ash would get into the sap. I also wanted better efficiency. I’m not sure I have a recommendation on how to go about this. In my case, I am very fortunate. My dad is an excellent welder. He welded a steel box 12″ x 12″ X 24″ that sits on a grate. The grate, in turn, sits on a pair of rails with a pan underneath to catch coals. There’s a 4″ diameter opening on the rear to accommodate a stove pipe.

I wanted to tap more trees this year, so I ordered actual 7/16″ taps from www.themapleguys.com. I also I ordered a thermometer, a hydrometer, and a stainless steel tube for use with the hydrometer. In mid-February, we had a warm spell and I got the sugaring bug. I tapped the three trees that I tapped last year, plus 4 additional large black / sugar maples.

I spent several weekends standing out in the cold, boiling down sap into syrup. One Saturday, in particular, it was bitterly cold. It takes a lot of wood to boil down the sap. It takes more when it is bitterly cold.