[ahepp]

I believe it would be negative time value?

It is generally assumed that in an inflationary economy, a dollar today is worth more than a dollar tomorrow

The post above seems to talk about deflation.

It's possible we're just using a different sign convention (or perhaps I've missed something more fundamental)

[sudosysgen]

Yeah, I do think we're just using different sign conventions here, because of inflation and opportunity cost a dollar today should be worth more than a dollar tomorrow.

[chordalkeyboard]

A dollar today is worth more than a dollar tomorrow, thats why I have to give you $1.1 tomorrow in exchange for you giving me $1.0 today.