I am fully aware of cost push inflation and its causes - ie how it affects firm's margins forcing them to push up their product sale price etc.

I am also aware that demand pull inflation occurs where firms intend to continue producing at the same price level but are unable to meet their full demand given what they are able to supply (for example, after they have entered the labour mkt to acquire more workers they still do not have enough labour to meet their demand). So they then decide they can push their price up. basically , demand exceeds supply.

What I never come across in text books however is where a firm decides merely to increase it's price because its demand has increased (ie its demand curve has shifted outwards , therby making a higher price more attractive in terms of revenues vs costs). Clearly this is different from traditional demand pull inflation because at the point where the firm decides to increase its price(right at the start), they have not yet determined how much they are able to produce. does this make sense?

My question is, what is this third type of inflation referred to as? I'm sure it occurs in the economy, buti cant seem to find it referred to anywhere.