1.   This dilemma has become more acute now that wheat prices tend to behave unpredictably.

2.   When supplies go down, prices tend to go up.

3.   When the demand for a product is high, its price tends to rise.

4.   The futures price tends to fall over time towards the spot price, equalling the spot price on the delivery day, at which time the basis is zero.

5.   Although prices tend to be higher than at discount stores, cost comparison between department stores is often unnecessary because most carry the same merchandise at comparable prices.

6.   And prices tend to drop sharply in the second and third years.

7.   And rising share prices tend to obscure conflicts between executives and board members that can cause a resignation or firing.

8.   And since stock market prices tend to rise and fall and earnings per share rise and fall, the stockholder can expect a proportionate increase in market value.

9.   And with demand high and supply tight, bond prices tend to rise.

10.   As a whole, Impressionist paintings sold more solidly than they have in years, but prices tended to hover around their estimates.