This paper explains the rationale behind deposit collateral that has not been discussed in the literature on financial contracting. In our model extending Hart and Moore (1998) to account for liquidity shocks, deposit collateral has potentially two important effects: the enhancement of pledgeability and the provision of liquidity. We show that only if liquidity shocks are stochastic, both effects are significant and overall efficiency is improved. This improvement is the raison d'être of deposit collateral. The result also establishes a unique role for banks, since deposit collateral can only be taken by these financial institutions. Furthermore, it is shown that the collateral can be implemented in the form of compensating balance requirements with or without commitment loans and is attached with less restrictive efficiency conditions than alternative lending arrangements.

This paper investigates whether competition in the Japanese banking sector has improved in the last quarter of the 20th century. By estimating the first order condition of profit maximization, together with the cost function and the inverse demand function, we found that competition had improved, especially in the 1970s and in the first half of the 1980s. The results fail to reject a Cournot oligopoly for city banks for most of the period, while they do reject it for regional banks for the overall period. This suggests that competition among city banks was stronger than that among regional banks.

This paper investigates whether Japanese banks had been following herd behavior in the domestic loan market from 1975 through 2000. Applying the technique developed by Lakonishok, Shleifer, and Vishny [Lakonishok, J., Shleifer, A., Vishny, R.V., 1992. The impact of institutional trading on stock prices, J. Finan. Econ. 32, 23–43] to the data from loans outstanding to different types of borrowers, we obtain evidence indicative of the existence of herding. City banks in Japan had been following a cyclical pattern of herding with one of the peaks around the bubble period in the late 1980s. Adjusting further for herding resulting from rational behavior, evidence indicative of the existence of irrational herding was observed only in the bubble period. Our estimate indicates that a total of some 5 trillion yen of loan increase by city banks during the period of 1987–1989 can be attributed to irrational herd behavior. The results imply that irrational bank behavior in the late 1980s might have contributed to the problems Japanese banks had with non-performing loans. We also obtained evidence for herding among regional banks and among geographically proximate banks.

Previous research suggests that loan officers may play a critical role in relationship lending by producing soft information about SMEs. For the first time, we analyze this hypothesis and find empirical evidence that indicates that loan officer activities are associated with bank production of soft information. We also find that loan officers at small banks produce more soft information than at large banks, but large banks appear to have the equivalent potential to underwrite relationship loans. Nevertheless, large banks choose instead to focus their resources on transactions lending.

This paper investigates whether the benefits of bank–borrower relationships differ depending on three factors identified in the theoretical literature: verifiability of information, bank size and complexity, and bank competition. We extend the current literature by analyzing how relationship lending affects loan contract terms and credit availability in an empirical model that simultaneously accounts for all three of these factors. Based on Japanese survey data we find evidence that the benefits from stronger bank–borrower relationships in terms of credit availability are limited to smaller banks. However, when the benefits are measured as improved credit terms, we find little additional benefit, and in some cases increased cost, from stronger relationships for opaque borrowers and for borrowers who get funding from small banks. These latter findings suggest the possibility that relationship borrowers may suffer from capture effects.

In this paper we propose a new test of the efficient structure (ES) hypothesis, which predicts that efficient firms come out ahead in competition and grow as a result. Our test has significant advantages over existing ones, because it is more direct, and can jointly test the so-called quiet-life hypothesis, which predicts that in a concentrated market firms do not minimize costs. We then apply this test to large banks in Japan. Consistent with the ES hypothesis, we find that more efficient banks become larger. We also find that market concentration reduces banks’ efficiency, which supports the quiet-life hypothesis. These findings imply that there is an intriguing growth–efficiency dynamic throughout banks’ life cycle, although our findings also suggest that the ES hypothesis dominates the quiet-life hypothesis in terms of economic impact.

Using unique micro data compiled from the real estate registry in Japan, we examine more than 400,000 loan-to-value (LTV) business loan ratios to draw implications for caps on LTV ratios as a macroprudential policy measure. We find that the LTV ratio exhibits counter-cyclicality, behavior that would have severely impeded the efficacy of a simple LTV cap had it been imposed. We also find that borrowers obtaining high-LTV loans are more risky but grew faster than those with lower LTV loans, which implies that a simple fixed cap on LTV ratios might inhibit growing (albeit risky) firms from borrowing.

This paper compares the economic impact of the collateral and bank lending channels in a unified framework by taking advantage of exogenous shocks to firms’ tangible assets and banks’ net worth caused by the massive Tohoku earthquake in 2011. We obtain the following findings: (1) both damage to a firm's tangible assets and to the net worth of its primary bank lead to an increase in the probability of the firm being credit constrained, which lends support to the existence of both the collateral and the bank lending channel; (2) the increase through the bank lending channel is about twice as large as and longer-lasting than that through the collateral channel; (3) the credit constraint has real effects: in terms of the aggregated sales decline, the impact through the bank lending channel is more than four times as large as that through the collateral channel, because the negative impact of damage to banks’ net worth spilled over to firms located outside the earthquake-damaged region. Overall, the bank lending channel played a far more substantial role than the collateral channel in the wake of the earthquake.