@Krzysiek answer above didn’t work because have_posts is a method not a property. It should be have_posts() not have_posts. Here’s the corrected code:
$my_query = new WP_Query( array(
'post_type'=>'news',
'posts_per_page'=>4,
'tax_query'=>array(
array(
'taxonomy'=>'instituteName',
'field'=>'slug',
'terms'=>'businessschool' // change to real slug
)
)
) );
while ( $my_query->have_posts() ) {
$my_query->the_post();
// display post
}