What did countries do to protect their home markets as the economies began to slow?

According to my own knowledge, when the economics began to slow down e. g. In the Great Depression, countries began to send tariffs and quotas to other countries. This makes local food/goods seem cheaper than food/goods imported from other countries, so ppl. will tend to buy/consume local food/goods instead of those imported food/goods. Also, if countries send high tariffs and quotas to other countries, this might lower their initiative to export food/goods too. This will therefore protect those local homr markets.