Economics – Warren's space

Econ 101: Interest rates

President Trump wants the Federal Reserve to lower interest rates thinking that that would reduce the interest the Federal Government pays in interest on its debt, which this last year was $1.13 trillion (yes trillion). Prior to 2008, the Fed’s policy interest rate—the so called Fed funds rate—was the overnight rate on overnight (i.e. one day) loans between banks. I will skip how the Fed determines (brings about in the market) that rate. Since 2008, when the Fed started to pay interest on bank reserves (deposits at Federal Reserve Banks), the Fed’s policy rate has been the rate paid on bank reserves.

The interest rates paid on longer (than overnight) loans (e.g., one, two, ten-year bonds) are related to the overnight rate because rolling over overnight loans for ten years is an alternative to a ten-year bond. This note explains that relationship.

The interest rate on, say, a one-year bond reflects what the market (lenders and borrowers) expects the one-day rate to be each day over that period. That, in turn, depends on what the market expects the “real” rate to be plus the rate of inflation. Market rates reflect the real rate plus the inflation rate. If inflation increase, other things equal, market interest rates increase.

So, the interest rate on a ten-year bond will reflect what the market expects the overnight rate to be over the next ten years, which reflects the expected real rate and the expected inflation rate over that period. So what happens to interest rates (say the ten-year bond rate) when the Fed lowers its policy rate as President Trump wants? It depends primarily on what that does to the market’s expectation of inflation over the relevant future period.

On Wednesday Dec 10 the Fed reduced its policy rate .25% to 3.50 to 3.75%. On that day the ten-year bond rate fell from 4.19% the day before to 4.15% but by Friday (two days later) had returned to 4.18% In short the ten year Treasury bond rate is essentially unchanged by the quarter percent drop in the Fed’s policy rate. Why? Because the market expects the drop in the overnight rate to be largely offset by a slight increase in inflation over the next ten years.

If the Fed is correct that lowering its policy rate is appropriate for continuing the reduction of inflation to its 2% target, then the ten-year rate will fall as well. Clearly an excessive cut in the policy rate (one that increases the expected rate of inflation) will increase longer term interest rates rather than lower them. Class dismissed.

Trade

Without trade each household/family would have to be self-sufficient, i.e., would only have to consume what they themselves could make, grow or do. No one would doubt the dire poverty the world would endure. Even trade limited to your neighborhood, with each household specializing in a few things to trade with other families specializing in other needs or wants would significantly increase everyone’s income. The wider the range of trade the greater the degree of specialization and increased income possible.

Expanding the potential for trade requires the ability to transport goods and serves over longer distances. The benefits of such connectedness extend well beyond higher incomes. Quoting from George Will’s wonderful book The Conservative Sensibility: Referring to the:

“Erie Canal. [Dewitt] Clinton [the sixth governor of New York] saw this project as a means of preventing states in the West from detaching themselves from the Union. The canal would “bind the union together by indissoluble ties” because the people would be “habituated to frequent intercourse and beneficial inter-communication,” and all Americans would be “bound together by the golden ties of commerce and the adamantine chains of interest.” The canal also, and inadvertently, helped to bring down the old order in Europe. By bringing cheap wheat from America’s Great Plains, the canal struck at the roots of Europe’s landed aristocracy.”

Implicit in the above is private ownership of one’s production. People work hard for their own benefit but to benefit from trade they must take account of the needs and wants of others. Trade must be win-win or it will not take place. I benefit from selling my production and you benefit from buying it. Communism—communal production—lacks the personal (selfish) incentive to work hard and has broadly failed as a system. Also from George Will: “In China, once collective farms were disbanded in 1978 under the leadership of the reformer Deng Xiaoping, agriculture output doubled in the space of just four years.”

The topic of trade keeps returning and I have written about it often. Rather than repeat myself, yet again, I will share some of those earlier blogs:

Econ 101—Trade in very simple terms

The politics of Trade

Econ 101: Tony Judt on Trade

Stable Coins

Digitizing our bank deposits (digital dollars—stable coins) would (will) represent another step forward in the ease and efficiency with which we can make payments and will enhance bank stability. Most of the US supply of money (US dollars) is in the form of our dollar deposits at our banks and most of our payments these days are already made by electronically transferring bank deposits from me to you via my bank to yours. I have discussed all of this in more detail earlier: “Econ 101-Money”

Developing the rails for paying with stable coins is a further improvement on our existing payment options. It is not revolutionary. The payment of cash (currency) requires no infrastructure (e.g. Merchant contract with credit card issuer and card reader, etc.). You just hand it over and anyone can accept it (hopefully the person you intended to receive it). The electronic transfer of a bank deposit balance (e.g., Zelle, Venmo, e-wire) requires the enrollment of the recipient in that particular payment vehicle. It took decades for credit cards to be widely accepted. Hundreds of companies now issue Visa cards (mine is issued by United Airlines) and all are accepted wherever any of them are accepted. But it took a lot of work to build that system.

What do stable coins issued by banks add that might be useful? From the bank side issuing stable coins from deposit balances simplifies the bank’s management of the assets that back them. When its customers withdraw cash these days, the bank must purchase it from the Federal Reserve in order to pass it on to you. It pays the Fed for the cash from its reserve deposits at the Fed, which reduces its ability to extend credit to businesses and households. If its reserves at the Fed are not sufficient, it will need to borrow from another bank or sell another asset.

The withdrawal of cash from bank deposits tends to follow seasonal patters. Thus the squeeze on its reserves at the Fed would tend to create seasonal fluctuations in bank credit hence in the money supply. Thus the Fed attempts to offset the impact of currency fluctuations on bank reserves and thus credit with offsetting purchases and sales of government securities (so called open market operations) or with temporary loans to banks in its “lender of last resort” function. If a bank can issue its own currency (as they did in the old days) when a customer withdraws cash from its deposits, its asset backing (and reserve deposits at the Fed) will not be affected. Banks will now be able to do this by issuing their own stable coins. While the customer’s deposit balance will fall when withdrawing cash (or stable coins), its total of stable coins “cash” plus deposit balance will not change thus the bank assets backing them do not need to change. Thus, such fluctuations in the currency/deposit ratio would not product a fluctuation in the money supply.

From the customers side the stable coins are as good as traditional cash only to the extent that the infrastructure to accept them (e.g. phone wallets) has been designed and widely acquired/accepted. Just as it took many years for credit cards (Visa, Mastercard and American Express) to be widely adopted, the same will be true with stable coins. Just as you might now swap addresses via your respective mobile phones, you will be able to make payments.

If everyone can issue their own money it degenerates to barter, i.e. it would not be money at all. The essence of a successful means of payment is the certainty of its ultimate claim on the central bank’s official monetary liability (the dollar). When central banks were limited to issuing currency redeemable for “something” such as gold or silver, the amount they issued was limited by their holding of gold or silver, etc. Today the Fed’s supply of money is limited by Congress’s mandate for price stability and full employment. And ultimately the government must accept such dollars in payment for our tax obligations stated in the same currency.

Miracle of the grape

A few weeks ago I posted a note on Facebook on the grapes I had for breakfast:

https://www.facebook.com/share/p/1TVFzjuche/

I called it a miracle but failed to mention a very important aspect of the miracle, namely the development of such delicious and resilient grapes in the first place. Grok provides the missing information

Thompson Seedless grapes, also known as Sultana, were developed through a combination of natural selection, selective breeding, and modern agricultural practices that enhanced their sweetness and resilience. Here’s a breakdown of how they became what they are today:

Origins and Natural Selection

Historical Background: Thompson Seedless grapes trace back to an ancient variety called the Sultana, originating in the Mediterranean or Middle East. This grape, scientifically Vitis vinifera, was naturally seedless due to a genetic mutation called stenospermocarpy, where seeds fail to develop fully, resulting in small, seedless berries.
Introduction to the U.S.: In 1872, William Thompson, a California nurseryman, introduced this variety to the United States from Europe. He promoted it as a superior grape for table use and raisin production, naming it “Thompson Seedless” after himself. The grape’s natural seedlessness was a key trait that made it appealing, as it improved eating quality.

Selective Breeding and Cultivation

Selection for Sweetness: Over generations, farmers and breeders selected vines that produced sweeter, larger, and more uniform berries. This was done through:
- Clonal Selection: Growers propagated cuttings from vines that exhibited desirable traits, such as higher sugar content (measured in Brix). Thompson Seedless grapes typically have a Brix of 18–22, indicating high sweetness.
- Crossbreeding: While the original Thompson Seedless was not heavily hybridized, its cultivation alongside other grape varieties in California allowed for natural adaptations and minor genetic improvements over time.
Resilience Through Grafting: To enhance resilience, Thompson Seedless vines were often grafted onto rootstocks resistant to pests like phylloxera (a root-destroying aphid) and nematodes, as well as tolerant to various soil conditions. This practice, common in California’s vineyards by the late 19th century, improved the vines’ durability against environmental stresses.

Modern Agricultural Practices

Irrigation and Climate: California’s warm, dry climate, particularly in the San Joaquin Valley, is ideal for grape cultivation. Controlled irrigation ensures the vines get just enough water to thrive without diluting sugar concentration in the berries, enhancing sweetness.
Pruning and Canopy Management: Growers use precise pruning techniques to limit yield, concentrating sugars in fewer clusters. Canopy management (controlling leaf cover) maximizes sunlight exposure, boosting photosynthesis and sugar accumulation.
Soil and Fertilization: Nutrient management, particularly potassium and nitrogen applications, supports vine health and berry quality. Well-drained soils in key growing regions reduce disease risk, contributing to resilience.
Gibberellic Acid Application: Since the mid-20th century, growers have used gibberellic acid, a plant hormone, to increase berry size and improve uniformity. This treatment also enhances sweetness by allowing berries to stay on the vine longer, accumulating more sugars.
Pest and Disease Management: Integrated pest management and fungicides protect vines from threats like powdery mildew, ensuring healthy, resilient plants that can produce high-quality fruit.

Genetic and Environmental Balance

Genetic Foundation: The seedless trait is a natural mutation, but sweetness and resilience are enhanced by the grape’s genetic predisposition to high sugar accumulation and the careful selection of robust vines.
Environmental Optimization: California’s long growing season, with warm days and cool nights, promotes sugar development while maintaining acidity, creating a balanced, sweet flavor profile.

Cultural and Economic Impact

Adaptation for Raisins: Thompson Seedless grapes became the backbone of California’s raisin industry because their high sugar content and thin skins make them ideal for drying. The drying process further concentrates sugars, enhancing perceived sweetness.
Market-Driven Selection: Consumer demand for sweet, seedless table grapes drove growers to prioritize traits like flavor and shelf life, further refining cultivation techniques.

In summary, Thompson Seedless grapes became sweet and resilient through a combination of natural genetic traits (seedlessness, sugar accumulation), selective propagation by growers like William Thompson, and advanced viticultural practices like grafting, irrigation, and hormone treatments. These efforts, paired with California’s ideal growing conditions, transformed a humble ancient variety into one of the world’s most popular grapes for table use, raisins, and wine.

Econ 101: Interest Rates –Another Go

A month ago I reviewed the role of the Federal Reserve’s policy interest rate: https://wcoats.blog/2025/07/17/the-feds-policy-interest-rate/ The subject is so important and seemingly misunderstand by many that I am reviewing it again here.

Interest rates balance the supply and demand for financial assets. Households and firms that save some of their incomes demand financial assets. Households and firms that borrow to invest in productive capital or for whatever reason supply those assets (mortgages, bonds, etc.). Rates on longer term assets reflect the expected value of the short-term rates over that period. Thus the interest rate on a ten year bond reflects the expected value of one year bills over the ten year period plus a small risk premium because the string of short term loans are an alternative to the single fixed rate ten year loan.

The policy interest rate of the Federal Reserve is set by the Fed to pursue its objective of stable money (defined by the Fed as 2% inflation) and high employment (the Fed’s dual mandate imposed by Congress).

This note reviews the Fed’s policy rate. Since 2008 the Fed’s policy rate has been the rate it pays banks for the money they keep on deposit with a Federal Reserve Bank (of which there are twelve but that is unimportant for understanding the role of the policy rate), which on Aug 6 amounted to $3,332 billion. This rate is known as the Interest on Reserve Balances (IORB).

If the IORB matches comparable market rates for equally liquid funds (the so-called neutral rate), banks will maintain their existing Fed deposits. If it is set above that level, banks will have a financial incentive to place more money with the Fed, i.e. lend less in the market, thus creating fewer deposits and reducing the money supply. If the IORB is set lower than the neutral rate, banks will draw down their Fed deposits to lend more in the market thus increasing deposits and the money supply.

The IORB is currently (Aug 6) 4.5%, where it has remained since Dec 2024. At this rate broad money (M2=bank demand, time and savings deposits) has grown between 4% and 5% (from a year earlier) over the last three months. Given that inflation remains above the Fed’s target of 2% it would not seem wise to lower the policy rate and increase the rate of monetary growth especially as higher tariffs go into effect.

To repeat from earlier blogs (because it is so important), if markets anticipate higher inflation in the future (next few years), market interest rates on longer term debt will increase to preserve their real (inflation adjusted) value. Lowering the Fed’s policy rate prematurely would increase the market’s anticipation of higher inflation rates in the future. In other word, lowering the IORB now is likely to increase interest rates on longer term debt. Leave the Fed alone to do its job as best it can.

Econ 101: Trade deficits

A trade deficit is the difference between what we buy from the rest of the world and what it buys from us. To that extent rather than buying our goods and services, the rest of the world holds our dollars. These dollars are most often held in the form of US securities (Treasury bonds, etc.). Though trade deficits help finance Uncle Sam’s spending that is not financed with tax revenue, and thus reduce the crowding out of domestic investment by government deficit spending, President Trump doesn’t like them. Our trade deficit in 2024 was $918 billion.

Trade deficits can be reduced by reducing our imports (this is what tariffs tend to do) and/or by increasing our exports. We export many things including food and oil. Tourism and foreign students studying in the US generate about 9% of our export revenue. This has dropped sharply this year as the Trump administration has blocked or discouraged foreign students and badly treated other visitors, denying entry to some. It has suspended entry of new foreign students to Harvard and is threatening to revoke existing student visas at Harvard.

Trump has not only reached into the affairs of Harvard (and those of many other “enemies”), he is also demanding that the US dollar surpluses held by our trading partners be invested as dictated by the Trump administration. This was stated explicitly by US Treasury Secretary Bessent in an interview by Larry Kudlow on Fox Business. https://www.youtube.com/watch?v=IgcmRJpE1pc

It is hard to see much free market here. Gregg Ip nails it in his recent WSJ article “The U.S. Marches Toward State Capitalism With American Characteristics” https://x.com/greg_ip?lang=en

U.S. – Japanese trade agreement

Free trade of goods and services produced without government subsidies or restrictions would maximize the incomes of all involved. To promote this result, the World Trade Organization has led the effort to reduce or eliminate tariff and other trade restrictions and has authorized the use of tariffs carefully targeted to nullify the distorting effect of government subsidies or other interferences in the competitive market production of goods and services.

This is not how President Trump has used or threatened in his usual bully style to use tariffs. For Trump, tariffs are not established to improve a level playing field for world trade, and not even always to protect inefficient American manufacturers such as the 50% tariff on imported Steel. An outrageous example was his threat to impose a 50% tariff on all Brazilian imports, effective August 1, 2025, if Brazil went forward with the prosecution of his ally, former President Jair Bolsonaro, who is charged with attempting to stage a coup d’état to overturn the results of the 2022 presidential election in Brazil. Incidentally, the U.S. currently has a trade surplus with Brazil. Go figure.

On July 23, “President Donald J. Trump announced a landmark economic agreement with Japan…. [In exchange for a reduction of US tariffs on all Japanese imports from 25% to 15%, it] will invest $550 billion directed by the United States to rebuild and expand core American industries…. The United States will retain 90% of the profits from this investment…. In addition to raising billions in revenue, this new tariff framework, combined with expanded U.S. exports and investment-driven production, will help narrow the trade deficit with Japan and restore greater balance to the overall U.S. trade position.” “Whitehouse fact-sheets/2025/07/”

As an aside, Trump has also threated to punish any country that stops using U.S. dollars as its reserve and trade vehicle currency. Somehow, he fails to understand that for a country to acquire these dollars (and for Japan to acquire the $550 billion it is to invest in the US) they must have a trade surplus (US trade deficit). Oh well.

“Japanese officials said there was no written agreement with Washington — and no legally binding one would be drawn up — after Trump administration officials claimed Tokyo would back investments in the US from which American taxpayers would reap nine-tenths of the profits.” https://www.ft.com/content/c1183b13-9135-41f6-9206-7b52af66f0a5

In addition to the fact that Japanese officials are disputing that they have agreed to such a deal, I hope that you are surprised that the American government is proposing to create new state owned companies. The world’s experience with state own companies has not been good. Our private enterprise dominated economy has served us (our standard of living) very well.

If this all seems rather confusing, welcome to Trump land.

The Fed’s policy interest rate

Among the things our protectionist, isolationist President fails to understand correctly is the role of the Federal Reserve’s policy rate. He wants interest rates to be lower and thinks that the Fed can cause that by lowering its policy rate. That rate used to be the overnight money market rate. If the Fed lowered that target it would supply more money (bank deposits at one of the twelve Federal Reserve Banks) to banks and thus the interbank money market for managing bank liquidity by buying government securities from banks. If banks’ liquidity (“reserves”) is increased, their demand to borrow in the interbank money market will be reduced and thus the interest rate prevailing in that market will be reduced. Thus, raising or lowering the Fed’s policy rate (and the consequent change in base –Fed reserve—money) was the instrument by which the Fed controlled the money supply (its own base money and the more relevant boarder bank money—M1, M2, etc.)

If you are into this subject, you will already understand what money is and where it comes from. If you would like a refresher read this: https://wcoats.blog/2024/11/08/econ-101-money/

The above description of the policy rate was applicable until 2008 when banks held minimal reserves (or excess reserves when there was still a minimum reserve requirement) at the Fed. But in response to the financial crisis in 2008 when the Fed purchased huge quantities of government debt (and mortgage-backed securities), the Fed began to pay banks interest on their now very large deposits at the Fed to keep them from lending them in the market and thus expanding the money supply excessively. So, the relevant Fed policy rate now is the rate it pays on banks’ reserves at the Fed, the so-called Interest on Reserve Balances (IORB).

As with the policy rate in the old regime, the IORB is the instrument by which the Fed now controls the growth in the money supply. When the IORB is reduced below prevailing overnight market rates banks will draw down their Fed deposits to lend at the higher market rate thus increasing money growth.

Interest rates in the market are determined in and by the supply and demand for credit in the market. If the Fed lowers its IORB it will increase the growth rate of dollars. The Fed will do so when it judges that appropriate for achieving its inflation rate target of 2.0 percent. The twelve-month inflation rate in May was 2.4% and rose to 2.7% in June. The Fed decided not to lower the rate further at this time. Doing so could well lead market participants to expect higher inflation in the future, which would raise (not lower) market rates for say 10 year Treasury bills.

Current Fed policy seems appropriate to me. It adheres to an inflation forecast targeting regime that has become popular in recent years in major central banks. But it reacted by raising rates too slowly in response to the surge in inflation in 2021-2 during the Covid pandemic. Inflation reached 9% in mid 2022. A better system is to return control of the money supply to the public that can buy and redeem dollars at a fixed price for a hard anchor (such as a gold standard). I laid this out in the following blog: https://wcoats.blog/2022/06/06/econ-101-the-value-of-money/

Taxation norms

Taxes are levied to raise money but also to influence behavior. What is taxed and how much influences how much of it is demanded. To take an example of a tariff (tax) on steel imports, the resulting higher price of imported steel increases the relative attractiveness of domestically produced steel. Under the rules of the World Trade Organization, such a tariff would be justified if it offsets an artificial (and thus economic efficiency undermining) subsidy of the foreign produced steel.

President Trump has introduced a totally different way of using tariffs/taxes. He uses them as threats to pressure a country to take action totally unrelated to the item to be taxed. This follows his general bully approach to negotiations. To pressure a country or firm to agree to his requests, he threatens harm if they refuse. If a university or newsman behaves in ways he doesn’t like, he attacks them or threatens them with harm.

In the most recent example Trump is threatening a 50% tariff on all imports from Brazil primarily due to Brazil’s legal proceedings against former President Jair Bolsonaro, which Trump characterizes as a “witch hunt,” and to address what he claims is an “unfair” trade relationship between the two countries.

“Trump demands that the trial against former president Bolsanero, who had tried to instigate a military coup after he had lost the last election, should be immediately end.” “First casualties from Trump’s increasing tariff craze”

It’s not clear what Trump means by “unfair” trade relationship. His positions on trade, which he clearly does not understand at all, are contradictory. He has threatened to raise tariffs on imports from countries that avoid using US dollars in their FX reserves and foreign trade payments. For countries to use US dollars they must have a trade surplus with the US (a US trade deficit with such countries) in order to acquire them. “Why Does the World Need a Reserve Asset with a Hard Anchor?” But Trump doesn’t seem to like or want such deficits. The US actually has a trade surplus with Brazil.

It may sound like this is all from the Onion, but sadly it is not. I don’t expect it to end well.

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