I have been more than a tad concerned about near-paralysis in the money markets and imploding equity prices. But this e-mail, from a well connected international investor not prone to alarm or (normally) the use of capital letters says that the banking crisis is staring to bring international shipping to a halt.

By way of background, letters of credit of various sorts are essential for trade. For instance, imagine the difficulty if you are, say, a Chinese manufacturer who wants to sell his wares to buyers overseas. How can he be sure the goods he ships will ever be paid for? Imagine the considerable difficulty and cost of chasing a deadbeat in a foreign country. Letters of credit. issued by banks, assure payment. They can also serve to finance the shipment (ie, fund the inventory while it is in transit).

Not only are banks now leery of lending to each other for much longer than overnight, they are also starting to refuse to honor letters of credit from other banks. From the above-mentioned reader:

At the end of the day, if every counterparty is bad then you don’t have a market and you don’t have an economy. I spoke to another friend of mine this afternoon, whose father has been in the shipping business forever. Pristine credit rating, rock solid balance sheet. He says if he takes his BNP Paribas letter of credit to Citi today for short term funding for his vessels, they won’t give it to him. That means he can’t ship goods, which means that within the next 2 weeks, physical shortages of commodities begins to show up. THE CENTRAL BANKS CAN’T LET THAT HAPPEN OR WE HAVE NO ECONOMY, LET ALONE A CREDIT SYSTEM.

We spoke later in the evening and said he had heard of another instance of a trade transaction failing, different parties entirely, this a shipment of coal, again due to the unwillingness of the seller’s bank to accept an LC from the buyer.

Update 12:10 AM: Confirmation comes from the Financial Post, “Grain piles up in ports” (hat tip reader Vox Sanus):