What is the cause and effect of The Three Little Pigs?

The cause of The Three Little Pigs is the wolf blowing down the houses of the first two pigs who built their houses out of straw and sticks, while the third pig who built his house out of bricks was able to withstand the wolf's huffing and puffing. The effect is that the third pig outsmarts the wolf and ultimately defeats him, teaching a lesson about the importance of hard work, perseverance, and being prepared for challenges.