a.) Fed raising interest rates to a normal level. Government bonds are now earning close to some of the faster developing countries, without the risks.
b.) Brexit impacting the growth of EU. Germany narrowly avoids recession....for now. But grew only 1.5% in 2018. There's still the matter of a possible US tariff on EU automobiles. And Italy/Greece/Spain debts are still a thing.
c.) Chinese economy is crumbling. GM dropped crashed 15% in China in 2018. Ford dropped 36%. iPhone sales dropped 13%. Louis Vuitton dropped 20%. Overall car sales dropped 13%. Stock market dropped 22%. Real estate sales in January 2019 dropped 44%.
d.) Asian countries impacted by China's fall. South Korea's export to China dropped 14% in 2018. Japan dropped 8%. Taiwan dropped 10%. Singapore dropped 8%.
e.) Uncertainties and high debt ratio in developing countries, prompting money to seek safe harbor. Tariff and protectionism impacts.
f.) lastly, US is growing at a healthy 3% in 2018