So this first line of explanation stresses the factors that are common to all financial bubbles — in particular the combination of cheap credit and a general increase in the appetite for risk. (rba.gov.au)
It is necessary for anyone following a meat - free diet to consume plant based foods in particular combinations — such as the combination found in hummus. (homemade-baby-food-recipes.com)
We are talking about a very particular combination of factors here. (realclimate.org)