Yoon Suk has vivid, happy memories of growing up in North Korea. She was raised during a time when state-socialism was relatively functioning, and the government could provide basic necessities to its citizens. She remembers wearing beautiful nylon (a highly-sought after fabric back in the earlier days of North Korea) uniforms with bows and red, patent-leather shoes to school. She also had a passion for the arts and performed frequently on stage. But as she grew older, the shine in her shoes began to fade and the hunger in her belly began to grow.

After the collapse of the Soviet Union, North Korea lost crucial sources of subsidized trade and aid and the North Korean economy crashed. It was during this time that Yoon Suk got married, but what should have been a happy time in her life ended up being far from it. The regime's mismanaged agricultural and environmental policies were confounded by harsh weather, plunging the country into a severe famine that lasted for years. Yoon Suk and her husband struggled to survive on the meager rations they received—and they were not alone. During this period, an estimated one million people died from starvation, while many of those who survived suffered immensely.

Yoon Suk, knowing that she had to do something to keep her family alive during the most difficult years of the "Arduous March," turned to the jangmadang—small, illegal markets where people sold and traded anything they could for food. Yoon Suk was like many North Korean women in this new reality, abandoning her traditional role for market activities. Unfortunately, running her modest merchant business was more challenging than she had anticipated and she struggled to keep it afloat. As the situation grew worse, she discontinued her business and looked for other ways to support her family, which had grown by two with the birth of her sons. It was during this time that she learned that life might be better in booming China.

As recently as three decades ago, Chinese people were on average poorer than their North Korean neighbors. But China's economic reforms have produced wealth and opportunities that are the envy of nearly all North Koreans today. Since North Korea's economic collapse, which lead to unprecedented cross-border movement and inflows of Chinese goods and media, North Koreans have gained a painful awareness of just how far their formerly impoverished Chinese neighbors have come.