This paper extends prior literature on the link between consolidation and stability in banking using a single country setting. From a sample of Indonesian commercial banks over the 2010-2015 time span, we construct the Lerner index as a measure of bank market power due to consolidation. Our empirical results document that higher bank market power tends to reduce insolvency risk and increase capital ratios. A deeper analysis however reveals that higher market power is detrimental for financial stability in state-owned banks and small private-owned banks. We therefore highlight that although consolidation among state-owned banks reduces cost inefficiency as in Hadad et al. (2013), further efforts to reduce state-owned banks' market power are necessary after consolidation. This paper also suggests that strengthening market power in large private-owned banks, but encouraging competition in small private-owned banks to reduce market power, are of particular importance for financial stability. JEL Code: G21, G2

Carla Pinheiro (1939405)

Cátia
M. Machado (1939402)

Cândido P. Ricardo (1939408)

Jenny Renaut (90666)

Kjell Sergeant (90667)

The seed proteome of two traditional
maize inbred lines (pb269 and pb369) contrasting in grain hardness
and in preferable use for bread-making was evaluated. The pb269 seeds,
of flint type (i.e., hard endosperm), are preferably used by manufacturers,
while pb369 (dent, soft endosperm) is rejected. The hypothesis that
the content and relative amounts of specific proteins in the maize
flour are relevant for such discrimination of the inbred lines was
tested. The flour proteins were sequentially extracted following the
Osborne fractionation (selective solubilization), and the four Osborne
fractions were submitted to two-dimensional electrophoresis (2DE).
The total amount of protein extracted from the seeds was not significantly
different, but pb369 flour exhibited significantly higher proportions
of salt-extracted proteins (globulins) and ethanol-extracted proteins
(alcohol-soluble prolamins). The proteome analysis allowed discrimination
between the two inbred lines, with pb269 demonstrating higher heterogeneity
than pb369. From the 967 spots (358 common to both lines, 208 specific
to pb269, and 401 specific to pb369), 588 were submitted to mass spectrometry
(MS). Through the combined use of trypsin and chymotrypsin it was
possible to identify proteins in 436 spots. The functional categorization
in combination with multivariate analysis highlighted the most discriminant
biological processes (carbohydrate metabolic process, response to
stress, chitin catabolic process, oxidation–reduction process)
and molecular function (nutrient reservoir activity). The inbred lines
exhibited quantitative and qualitative differences in these categories.
Differences were also revealed in the amounts, proportions, and distribution
of several groups of storage proteins, which can have an impact on
the organization of the protein body and endosperm hardness. For some
proteins (granule-bound starch synthase-1, cyclophilin, zeamatin),
a change in the protein solubility rather than in the total amount
extracted was observed, which reveals distinct in vivo associations
and/or changes in binding strength between the inbred lines. Our approach
produced information that relates protein content, relative protein
content, and specific protein types to endosperm hardness and to the
preferable use for “broa” bread-making

FigShare

Two Traditional Maize Inbred Lines of Contrasting
Technological Abilities Are Discriminated by the Seed Flour Proteome

Yusgiantoro, Inka

Soedarmono, Wahyoe

Tarazi, Amine

HAL-UNILIM