Flat priors vs. ignorance priors in the analysis of the AR(1) model

The paper compares, by a Monte-Carlo study based on an AR(1) model, the performance of the flat prior and the ignorance prior suggested by Phillips. It argues that the ignorance prior gives heavy weight to values of the autoregressive parameter p higher than 1, and hence distorts the sample evidence as summarized in the likelihood function. It yields bimodal posterior distributions, with the second mode at p higher than 1, even when the true value of p is substantially less than 1.     

Tunneling or Value Added? Evidence from Mergers by Korean Business Groups

We examine whether firms belonging to Korean business groups (chaebols) benefit from acquisitions they make or whether such acquisitions provide a way for controlling shareholders to increase their wealth by increasing the value of other group firms (tunneling). We find that when a chaebol-affiliated firm makes an acquisition, its stock price on average falls. While minority shareholders of a chaebol-affiliated firm making an acquisition lose, the controlling shareholder of that firm on average benefits because the acquisition enhances the value of other firms in the group. This evidence is consistent with the tunneling hypothesis.     

Poverty and informal economy participation

This paper uses a household survey of the Romanian informal economy to analyse the effects of poverty on informal economy participation. We begin by developing a simple theoretical model, which shows that the participation is driven by low income and the gap between desired and actual income level. We then estimate the determinants of households’ participation in the informal economy. Empirical findings are consistent with the theoretical prediction. In addition, a positive association between husbands and wives working in the informal economy implies the deep poverty faced by a family whose head participates in the informal economy.     

Ownership Structure,Business Group Affiliation,Listing Status,and Earnings Management: Evidence from Korea*

Using a large sample of both publicly traded and privately held firms in South Korea (hereafter “Korea”), we investigate whether, and how, the deviation of controlling shareholders' control from ownership, business group affiliation, and listing status differentially affect the extent of earnings management. Our study yields three major findings. First, we find that as the control‐ownership disparity becomes larger, controlling shareholders tend to engage more in opportunistic earnings management to hide their behavior and avoid adverse consequences such as disciplinary action. The result of our full‐model regression reveals that an increase in the control‐ownership wedge by 1 percent leads to an increase in the magnitude of (unsigned) discretionary accruals by 1.3 percent of lagged total assets, ceteris paribus. Second, we find that for our full‐model regression, the magnitude of (unsigned) discretionary accruals is greater for group‐affiliated firms than for nonaffiliated firms by 0.8 percent of lagged total assets. This result suggests that business group affiliation provides controlling shareholders with more incentives and opportunities for earnings management. Finally, we find that for our full‐model regression, the magnitude of (unsigned) discretionary accruals is greater for publicly traded firms than for privately held firms by 1.2 percent of lagged total assets. This result supports the notion that stock markets create incentives for public firms to manage reported earnings to satisfy the expectations of various market participants that are often expressed in earnings numbers.     

A market without the 'right' property rights

While Vietnam's reforms provided some of the weakest legal private property rights amongst the transitions countries, cities like Ho Chi Minh City have booming domestic real estate markets. Interestingly, while most properties in 2001 did not have legal title, those on the market did advertise a variety of property rights claims. Employing a hedonic price model to analyse the pattern of prices at which sellers offer properties in Ho Chi Minh City, this study examines how this market values property rights. The findings show that multiple forms of property rights, enforced by highly decentralized state institutions, are operational in this market. Furthermore, legal title itself is not the most valuable form of property right. These findings suggest that the value of property rights emanates from where it is enforced within the particular institutional context of a market.