1. Shift in the Economic Policy Paradigm

Most notable among the changes in major economies in the wake of the 2008 global financial crisis is the shift in the economic policy paradigm in regards to the expansion of the government's role in the market. Consequently, growth agendas are seeking to enhance growth potential and a policy combination that could resolve structural problems to improve growth sustainability.

In Korea, although have been studies that linked the decline in the growth rate to problems in the social structure such as income inequality, the majority were unable to go beyond the trade-off between growth and distribution. After the global financial crisis, however, debates have grown over the fact that actively responding to social problems can contribute to sustainable growth. There is growing recognition that growth and distribution are no longer a target of contradicting policies and can be pursued in a complementary manner.

Thus, even if growth policies can satisfy the demands from an era of a paradigm shift to a universally strengthened policy, and presents the explicit goal of actively responding to concerns that the economy will be stuck with slow growth, the validity and effectiveness of the policies need to be constantly checked and supplemented. This study intends to analyze the post-crisis progress made on addressing Korea’s socioeconomic issues and to provide a basis to explore whether social structural phenomena, now being the target of policy correction due to their role in current problems, will be actually and empirically identifiable beyond some logic. This study analyzed the structural changes in major sectors that are considered as an important premise in planning and executing policies for sustainable growth but require a more thorough review. It also aims to ascertain how these changes are related to the key growth factors such as productivity.

2. Analysis of the Factors of the Recent Growth in the KoreanEconomy

This study first looks into slowing economic growth, the most obvious macroeconomic change faced by Korea since the global financial crisis. In particular, by analyzing the changes in growth factors using the growth accounting method, this study rechecked whether the fall in the growth rate was due to cyclical factors or was driven more by long-term structural characteristics.

According to the authors, the decline in economic growth in 2011-2017 can be explained by the drop in the contribution of physical capital and total factor productivity (TFP). Based on the finding that the decreased growth in TFP led to the reduced growth in marginal capital productivity and thus, diminished the contribution of material capital, the authors consider it too early to conclude that investment in physical capital has been stagnant since the global financial crisis. In addition, considering that Korea’s growth capacity is slowing on rapidly aging demographics, the future will be dependent on how well the productivity growth can buffer the pace of slowing growth. Even with continuous efforts to enhance productivity, Korea’s economic growth in the 2020s is expected to slow down to about an annual 2% on average. This result implies that the slowing growth of the Korean economy can be seen as a long-term structural phenomenon, and that a clearer understanding of the structural economic changes is needed when designing responsive policies.

3. Corporate Labor Share of Income and Market Dominance

This study found that contrary to domestic studies stating that labor share has continued to descend since the foreign exchange crisis in the late 1990s, large enterprises—subject to the external audit system—exhibited a rebound since the 2000s following a decline from the early 1990s. The study focuses on 'market changes' such as technological progress, growing trade represented by globalization, and the increase in monopoly profit as factors driving the change in the labor share of income. This point is where this study distinguishes itself from previous studies, concentrating on labor market flexibility, including rising non-regular workers, in the post-crisis period, and the ensuing relative sluggishness of labor and household income growth. In particular, this study found a close correlation between the markup—that represents the market concentration of Korean firms—and labor income share, and the fact that the markup has declined since the 2000s while labor income share has risen suggests that there have probably been positive welfare effects on the Korean economy.

This study reviews various adjustment measures and provides alternatives for measuring labor income share. Taking into account their problems, the author reexamined the trend of labor income share and analyzed the relationship between markup and labor income share—as a variable related to corporate decisions and market structural changes. In doing so. this study intends to suggest an important reference point in understanding the causes and backgrounds of social structural problems such as income inequality in our economy, and seeking solutions.

4. Causes of Increased Corporate Savings and the Ripple Effects onGrowth and the Distribution Structure

This analysis targets the problem of increased corporate savings. The mounting savings by corporations implies that firms are relatively indifferent about developing production capabilities for the future, indicating that the economy will slow as the growth of total factor productivity (TFP), including technology input and progress, decelerates. Some view this as a sign that the economy will face low growth as TFP growth—including capital input required for growth as well as technological progress—slows down. Others argue that rising cash holdings is the optimal choice for firms coping with increasing uncertainties, and most of the savings are used for the formation of fixed assets and hence, there is no need to view it only negatively.

Between these two opposing views, this study begins with checking the validity of the latter. In the Korean economy, the increase in corporate savings is usually due to a rise in fixed capital consumption and savings-investment gap. Particularly after the 2000s, firms may have chosen to increase their corporate savings to deal with the increase in fixed capital consumption resulting from technological changes. This could lead to a widening productivity gap between firms actively adapting to the technological changes and those that do not. This study found that corporate savings have a significant positive correlation with productivity growth―instead of the possibility that firms accumulating cash will exhibit inefficiency. These findings suggest that a policy curtailing corporate savings could undermine the efficiency of the market as it could distort the optimized corporate decision-making and reduce incentives to push for technological change.

5. Household Debt and Private Consumption

This study analyzes the macroeconomic risks inherent in rising household debt and draws on the implications for growth policy. The problem of mounting household debt has been recognized as the most characteristic risk factor for the Korean economy over the past several years. On the other hand, unlike most advanced economies who have expanded their debt to avoid a plunge in growth after the global financial crisis, Korea has put fiscal soundness before others in pursuit of growth at the expense of the financial soundness of the household sector.

This study can be of great importance for discussions on future growth policies as it examines the role of household debt in relation to sluggish private consumption after the crisis and draws on the implications of slow growth. It empirically showed that Korea’s household debt could amplify the instability and thus, weaken the growth of consumption, resulting in sluggish growth. Debt will have a bigger negative impact on consumption during the phase of aggravating recession, possibly leading to a longer slump and delayed recovery.

Based on these discussions, this study calls for a more active solution to the excessive household debt, as it will weigh heavily on the economy and entail enormous losses for social welfare. The author suggests that in normal situations, macroprudential policy should be strengthened by, for example limiting the proportion of overly indebted people in order to induce a soft landing. But, in a recessionary phase with shrinking domestic demand, monetary and fiscal policies should be managed through an expansionary stance. This is because macroprudential policy alone cannot restrain the downward pressure of aggregate demand from becoming prolonged particularly for heavily debted households. This study also stressed consistent efforts to rectify the financial weakness in the household sector as a full-fledged recovery of consumption cannot be expected unless financial soundness improves.

발간사
요 약

제1장 정책 패러다임 변화와 성장 어젠다
　제1절 글로벌 금융위기와 정책 패러다임
　제2절 우리 경제의 정책 패러다임 변화
　제3절 우리 경제의 성장 어젠다
　제4절 본고의 의의
　참고문헌

제2장 최근 한국경제의 성장요인 분석
　제1절 서 론
　제2절 성장회계를 통해 살펴본 글로벌 금융위기 이후 우리 경제의 성장률 하락요인 분석
　제3절 글로벌 금융위기 이후 거시경제의 생산성 증가세 둔화에 대한 논의
　제4절 장기 경제성장률 전망
　제5절 요약 및 결론
　참고문헌
　부 록

제3장 법인의 노동소득분배율과 기업의 시장지배력
　제1절 서 론
　제2절 선행연구
　제3절 한국경제 전체의 노동소득분배율
　제4절 법인의 노동소득분배율 추이
　제5절 법인 노동소득분배율의 변화 원인
　제6절 결 론
　참고문헌
　부 록

제4장 기업저축 증가의 원인과 성장⋅분배 구조에 대한 파급효과
　제1절 서 론
　제2절 기업저축의 증가요인
　제3절 가설의 설정 및 검토
　제5절 결 론
　참고문헌
　부 록

제5장 가계부채와 민간소비
　제1절 서 론
　제2절 연구의 배경
　제3절 과다부채와 소비부진 간 관련성에 대한 선행연구
　제4절 실증분석 방법 및 자료
　제5절 실증분석
　제6절 가계부채와 성장 간 관련성에 대한 논의
　제7절 결 론
　참고문헌

ABSTRACT